Consider the following hypothesis test. H0: μ ≤ 50 Ha: μ > 50

A sample of 60 is used and the population standard deviation is 8. Use the critical value approach to state your conclusion for each of the following sample results. Use α = 0.05. (Round your answers to two decimal places.)

(a) x = 52.3

Find the value of the test statistic. =

State the critical values for the rejection rule. (If the test is one-tailed, enter NONE for the unused tail.)

test statistic ≤ =

test statistic ≥ =

State your conclusion.

a. Do not reject H0. There is sufficient evidence to conclude that μ > 50.

b. Reject H0. There is sufficient evidence to conclude that μ > 50.

c. Reject H0. There is insufficient evidence to conclude that μ > 50.

d. Do not reject H0. There is insufficient evidence to conclude that μ > 50.

(b) x = 51

Find the value of the test statistic. =

State the critical values for the rejection rule. (If the test is one-tailed, enter NONE for the unused tail.)

test statistic ≤ =

test statistic ≥ =

State your conclusion.

a. Do not reject H0. There is sufficient evidence to conclude that μ > 50.

b. Reject H0. There is sufficient evidence to conclude that μ > 50.

c. Reject H0. There is insufficient evidence to conclude that μ > 50.

d. Do not reject H0. There is insufficient evidence to conclude that μ > 50.

(c) x = 51.8

Find the value of the test statistic. =

State the critical values for the rejection rule. (If the test is one-tailed, enter NONE for the unused tail.)

test statistic ≤ =

test statistic ≥ =

State your conclusion.

a. Do not reject H0. There is sufficient evidence to conclude that μ > 50.

b.Reject H0. There is sufficient evidence to conclude that μ > 50.

c.Reject H0. There is insufficient evidence to conclude that μ > 50.

d. Do not reject H0. There is insufficient evidence to conclude that μ > 50.

Consider the following hypothesis test.

A sample of 60 is used and the population standard deviation is 8. Use the critical value approach to state your conclusion for each of the following sample results. Use α = 0.05.

(Round your answers to two decimal places.)

(a) x = 52.7 Find the value of the test statistic.

State the critical values for the rejection rule. (If the test is one-tailed, enter NONE for the unused tail.)

test statistic ≤_______

test statistic ≥_______

State your conclusion.

Reject H₀. There is insufficient evidence to conclude that μ > 50.

Do not reject H₀. There is sufficient evidence to conclude that μ > 50.     

Do not reject H₀. There is insufficient evidence to conclude that μ > 50.

Reject H₀. There is sufficient evidence to conclude that μ > 50.

(b) x = 51

Find the value of the test statistic. _____

State the critical values for the rejection rule. (If the test is one-tailed, enter NONE for the unused tail.)

test statistic ≤ _____

test statistic ≥ _____

State your conclusion.

Reject H₀. There is insufficient evidence to conclude that μ > 50.

Do not reject H₀. There is sufficient evidence to conclude that μ > 50.     

Do not reject H₀. There is insufficient evidence to conclude that μ > 50.

Reject H₀. There is sufficient evidence to conclude that μ > 50.

(c) x = 51.9

Find the value of the test statistic.

State the critical values for the rejection rule. (If the test is one-tailed, enter NONE for the unused tail.)

test statistic ≤ _____

test statistic ≥ _____

State your conclusion.

Reject H₀. There is insufficient evidence to conclude that μ > 50.

Do not reject H₀. There is sufficient evidence to conclude that μ > 50.     

Do not reject H₀. There is insufficient evidence to conclude that μ > 50.

Reject H₀. There is sufficient evidence to conclude that μ > 50.

Continue to use same population and sample. Population Size of 150 with a sample size of 49 Sample Mean is 519.04  Perform a hypothesis test of the claim that the true, but unknown population mean, is equal to 500, using a signicance level, = :02.

1. Using proper notation, write the correct null and alternative hypotheses. Indicate, which hypothesis is the claim, and state if the test is left-tailed, right-tailed, or 2-tailed.

2. Calculate the appropriate test statistic.

3. Use table to determine which of the following is accurate a. p-value :010 b. 010 0:20

4. Sketch the rejection and non-rejection region(s) labeled with correct critical value(s).

5. State and explain conclusion for the test with regard to the null hypothesis in terms of parts 3 and 4 above.

6. State the conclusion in plain language including how it relates to claim that population mean is 570.

From your knowledge about retirement, describe a woman who is likely to adjust well to retirement. Then describe a woman who is likely to adjust poorly to retirement.

Describe the economic situation of elderly women, and list factors that help to explain the gender differences in income for elderly men and women.

What are some of the physical symptoms of menopause? Imagine that a middle-aged friend is now experiencing menopause. What information would you tell her about hormone replacement therapy?

You may need to use the appropriate appendix table or technology to answer this question.

According to Inc.com, 79% of job seekers used social media in their job search in 2018. Many believe this number is inflated by the proportion of 22- to 30-year-old job seekers who use social media in their job search. Suppose a survey of 22- to 30-year-old job seekers showed that 308 of the 370 respondents use social media in their job search. In addition, 279 of the 370 respondents indicated they have electronically submitted a resume to an employer.

(a)

Conduct a hypothesis test to determine if the results of the survey justify concluding the proportion of 22- to 30-year-old job seekers who use social media in their job search exceeds the proportion of the population that use social media in their job search. Use α = 0.05.

State the null and alternative hypothesis. (Enter != for ≠ as needed.)

H0:

Ha:

Find the value of the test statistic. (Round your answer to two decimal places.)

Find the p-value. (Round your answer to four decimal places.)

p-value = 0.8324

State your conclusion.

Reject H0. We can conclude that the proportion of 22- to 30-year-old job seekers who use social media in their job searches exceeds the proportion of the population that use social media in their job searches.Do not reject H0. We cannot conclude that the proportion of 22- to 30-year-old job seekers who use social media in their job searches exceeds the proportion of the population that use social media in their job searches.    Reject H0. We cannot conclude that the proportion of 22- to 30-year-old job seekers who use social media in their job searches exceeds the proportion of the population that use social media in their job searches.Do not reject H0. We can conclude that the proportion of 22- to 30-year-old job seekers who use social media in their job searches exceeds the proportion of the population that use social media in their job searches.

(b)

Conduct a hypothesis test to determine if the results of the survey justify concluding that more than 70% of 22- to 30-year-old job seekers have electronically submitted a resume to an employer. Using α = 0.05, what is your conclusion?

State the null and alternative hypothesis. (Enter != for ≠ as needed.)

H0:

Ha:

Find the value of the test statistic. (Round your answer to two decimal places.)

Find the p-value. (Round your answer to four decimal places.)

p-value =

State your conclusion.

Do not reject H0. We cannot conclude that more than 70% of 22- to 30-year-old job seekers have electronically submitted a resume to an employer.Reject H0. We cannot conclude that more than 70% of 22- to 30-year-old job seekers have electronically submitted a resume to an employer.    Reject H0. We can conclude that more than 70% of 22- to 30-year-old job seekers have electronically submitted a resume to an employer.Do not reject H0. We can conclude that more than 70% of 22- to 30-year-old job seekers have electronically submitted a resume to an employer.

• Your thoughts on the present state of health care in the US;
• Do you pay for your insurance?
• Is it a burden to you?
• Do you believe we should have Universal free health care for all?
• Is free health care a basic human right?
• If yes, tell us why.
• If no please explain your answers

Let x be a random variable that represents hemoglobin count (HC) in grams per 100 milliliters of whole blood. Then x has a distribution that is approximately normal, with population mean of about 14 for healthy adult women. Suppose that a female patient has taken 10 laboratory blood tests during the past year. The HC data sent to the patient's doctor are as follows.

(i) Use a calculator with sample mean and standard deviation keys to find x and s. (Round your answers to two decimal places.)

(ii) Does this information indicate that the population average HC for this patient is higher than 14? Use ? = 0.01.

(a) What is the level of significance?


State the null and alternate hypotheses.

H₀: ? = 14; H₁:  ? < 14

H₀: ? = 14; H₁:  ? ? 14    

   H₀: ? < 14; H₁:  ? = 14

H₀: ? > 14; H₁:  ? = 14

H₀: ? = 14; H₁:  ? > 14

(b) What sampling distribution will you use? Explain the rationale for your choice of sampling distribution.

The Student's t, since we assume that x has a normal distribution and ? is known.

The standard normal, since we assume that x has a normal distribution and ? is unknown.     

The Student's t, since we assume that x has a normal distribution and ? is unknown.

The standard normal, since we assume that x has a normal distribution and ? is known.

What is the value of the sample test statistic? (Round your answer to three decimal places.)


(c) Find the P-value. (Round your answer to four decimal places.)


Sketch the sampling distribution and show the area corresponding to the P-value.

d) Based on your answers in parts (a) to (c), will you reject or fail to reject the null hypothesis? Are the data statistically significant at level ??

At the ? = 0.01 level, we reject the null hypothesis and conclude the data are statistically significant.

At the ? = 0.01 level, we reject the null hypothesis and conclude the data are not statistically significant.

    At the ? = 0.01 level, we fail to reject the null hypothesis and conclude the data are statistically significant.

At the ? = 0.01 level, we fail to reject the null hypothesis and conclude the data are not statistically significant.

(e) Interpret your conclusion in the context of the application.

There is sufficient evidence at the 0.01 level to conclude that the population average HC for this patient is higher than 14.

There is insufficient evidence at the 0.01 level to conclude that the population average HC for this patient is higher than 14.

Discuss the etymologies of the following scientific names. Use any resources you need to discuss why these scientific names are (or are not) appropriate for the taxa carrying them. For example, you might state something like “Arborporphyriflos” (which does not exist) means “a tree with purple flowers”, so the etymology would be appropriate for a plant like that because the genus means tree (Arbor) and the specific epithet means purple flower (porphyriflos); however, if the tree was observed to produce yellow flowers the name’s etymology becomes somewhat inaccurate as a descriptor. Clearly, you will have to judge for yourself based on what you find out about these organisms:

1. Eleutherodactylusportoricensis:

2. Helianthusannuus:

Biology review Sheet - NEED ANSWERS ASAP - the last person did this very poorly

1. Identify and differentiate between the asexual spores and sporangia produced by zygomycetes and the conidia and conidiophores produced by ascomycetes.

2. Describe mycorrhizae and lichens and explain the role of each organism involved in each of these mutualistic relationships. If presented with a lichen specimen, you should be able to identify it as such.

3. Ste why Bryophytes (mosses) and Pteridophytes (Ferns) are restricted to habitats that are moist.

4. State why Bryophytes exhibit low, sprawling growth.

5. Differentiate between xylem and phloem.

6. Define Heterospory and distinguish between microspores and megaspores (i.e. with respect to what they develop into). State which plant groups are heterosporous.

7. List for differences between seeds and spores.

8. Describe pollen (i.e. what is pollen?) and explain why pollen provides and advantage to plants that produce it.

9. Describe a seed (i.e. what is a seed?) state which generation (gametophyte or sporophyte) develops from a seed, and state the advantage of producing seeds.

10. Describe a flower; label the parts of a flower; identify the male and female reproductive organs; the site of pollen production; site of egg production; and site of fertilization; and state the purpose of flowers.

11. Define fruit and explain how fruits are advantageous to flowering plants.

12. State which structures of the flower develop into the seed and fruit respectively.

13. Differentiate between simple, aggregate, accessory, and multiple fruits, with examples.

14. Compare and contrast the life cycles of bryophytes, pteridophytes, gymnosperms, and angiosperms (some of this included in the list for objective 6 above).

part 2

1. Describe at least 5 characteristics that green algae and land plants have in common.
2. List and briefly describe at least 5 challenges faced by plants in “making the move to land”.
3. List at least 5 adaptations (shared derived characteristics) of land plants and briefly explain how these4 features are adaptive for life on land.
4. Diagram the generalized alternation of generations, the reproductive cells produced (spores, gametes, and zygote) and where mitosis, meiosis and fertilization take place.
5. Indicate which stages/structures in the alternation of generations life cycle are haploid and which are diploid, and which are multicellular and which are unicellular.
6. Compare/contrast phylum Bryophyta, Pteridophyta, Pinophyta, Cupressophyta, and Anthophyta with regards to:

• The presence of a waxy cuticle, sporangia and gametangia, and embryo retention.
• The presence of stomata
• The presence of vascular tissue
• The presence of true roots and leaves
• The dominance, size and independence of the sporophyte and gametophyte stages
• How fertilization is accomplished (i.e. do flagellated sperm swim to the egg or is the male gametophyte transported to the female via wind and/or animal dispersed pollen grains?).
• The reproductive structures that are being dispersed
• If the female gametophyte is contained within and ovule, and if so, the ovule is within an ovary.
• Whether seeds, flowers and/or fruit are produced
• … and be able to state/identify/describe any other distinguishing features of these phyla that are noted in you lab manual 9e.g., rhizoids, sori, cones, the sporophytes vs. gametophyte generation…etc).

part 3

1. List the general characteristic of fungi that distinguish them from members of other multicellular kingdoms (i.e. Plants and Animals).
2. State at least two characteristics of fungi that support the hypothesis that they are more closely related to animals than to plants (i.e. what are some features found in fungi and animals, but not in plants?).
3. Explain how fungi acquire their nutrients.
4. Describe the basic body plan of a multicellular fungus.
5. State what a yeast is.
6. Differentiate between coenocytic and septate fungi.
7. Draw/fill-in/answer questions related to a diagram illustrating the basic (generalized) lifecycle of a fungus, including asexual and sexual reproduction. Identify the haploid, diploid, and heterokaryotic stages, and define plasmogamy and karyogamy.
8. State the function of a fungal fruiting body
9. Explain the significance of cyanobacteria to the evolution of life on Earth and the important roles cyanobacteria play in ecosystems.
10. Identify specimens of any of the cyanobacteria colony, and state the significance (role) of these cells.
11. Explain why it s that people who cannot tolerate milk can often eat yogurt.
12. Given the results of the gram stain, be able to identify which bacteria are Gram positive and which are gram negative
13. Define zone of inhibition.
14. Given a plate (or and image of a plate) that has been incubated with bacteria and antibiotic discs, identify which antibiotic(s) the bacterium was sensitive to, which antibiotic(s) the bacterium was resistant to, and justify your answer by explaining how/why the zones of inhibition form and what a larger zone means. → Hint: Your answer should refer to the concentration antibiotic as it diffuses in to the agar.
15. Explain how pathogenic bacteria may acquire antibiotic resistance, how antibiotic resistance can quickly spread through a bacterial population, and how misuse of antibiotics an promote prevalence of resistant strains → Hint: Your answer should refer to mutations , lateral/horizontal gene transfer, rapid reduction in bacteria, and natural selection (i.e. change environment with addition of antibiotic → resistant strains favored)

16. Briefly explain why antibiotics are effective at killing bacterial cells, but do not seem to impact human sells. → Hint: This is in your assignment.

part 4

1. State several characteristics of Archaea that distinguish this group from Bacteria.
2. Distinguish between halophile, thermophiles, and methanogens.
3. List the major characteristics that define domain Bacteria
4. Differentiate between cocci, bacilli, and spirilli.
5. Define “endospores” and explain how endospores have contributed to the success of some bacteria.
6. Differentiate between the following modes of nutrition: photoautotroph, chemoautotroph, photoheterotroph and chemoheterotroph.
7. Differentiate between obligate aerobe, obligate anaerobes, and facultative anaerobes.
8. Understand/explain sterile technique. Both when pouring plates and spreading bacteria on plates.
9. Distinguish between the structure of Gram positive and Gram negative bacteria, and clearly explain how these differences allow the Gram staining procedure to differentiate between these groups (this will require both explaining how the Gram staining procedure is carried out and how differences in morphology of these two groups of bacteria result in different end colors).

part 5

1. Define “taxonomy”.
2. Define “binomial nomenclature” and know how to properly write an organism’s scientific name.
3. List the major taxonomic categories or the current hierarchical classification system, from the most to least inclusive.
4. Describe Linnaeus’ original two kingdom classification and name two shortcomings of this scheme.
5. List three Domains
6. State the guidelines/rules for properly building a dichotomous key and/or identify errors in an example a dichotomous key and/or build a dichotomous key using a given set of specimens