Suppose that in a given store, customers are willing to buy y pounds of coffee beans per day at $x per pound, as given by the price-demand equation y=10+(180/x) for 2 (is less than or equal to) x (is less than or equal to) 10.

a. Find y’ with appropriate units. Explain what the first derivative means in this situation by hand.

b. Find the demand and the instantaneous rate of change of demand with respect to price when the price is $5.

c. Use a table of values to sketch a well-labelled graph of this function between $2 and $10 per pound.

d. Does the rate of demand increase or decrease over time? Explain.

Deciding between best of breed vendor systems and an integrated vendor system requires a strong understanding of the needs of the healthcare organization in delivering quality care to patients. You have been hired as a healthcare applications consultant by an integrated hospital system consisting of full hospital services (including radiology, laboratory, and dietary services). The hospital system has numerous sites, such as satellite ambulatory care centers for specific populations of customers. What are the advantages and disadvantages of a best-of-breed systems approach? What are the advantages and disadvantages of an integrated vendor system approach? Propose to management a recommendation for proceeding; including any assumptions required to support your recommendation. (Please type response)

You have been asked to design a web page for a local business or organization (choose one from your local community). Go to www.flickr.com or www.1StopPictures.com and choose a visual to illustrate the website by trying to match the personality of the organization to a visual image. Then, identify the primary categories of information that need to be included on the page. Develop a flow chart or map that shows how a typical user would navigate through the site. What other image could you find that might be used on inside pages to provide some visual interest to this business’s online image? Now consider interactivity: How could this site be used to increase interactivity between this company and its customers?

1. Use the sample data and confidence level given below to complete parts​ (a) through​(d).

A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll, n=1072 and x=569 who said​ "yes." Use a 95% confidence level.

​a) Find the best point estimate of the population proportion p.

(Round to three decimal places as​ needed.)

​

b) Identify the value of the margin of error E.

​(Round to three decimal places as​ needed.)

​c) Construct the confidence interval.

??? <p< ???

​(Round to three decimal places as​ needed.)

​d) Write a statement that correctly interprets the confidence interval. Choose the correct answer below.

A. There is a 95​% chance that the true value of the population proportion will fall between the lower bound and the upper bound.

B. One has 95​% confidence that the sample proportion is equal to the population proportion.

C. 95​% of sample proportions will fall between the lower bound and the upper bound.

D. One has 95​% confidence that the interval from the lower bound to the upper bound actually does contain the true value of the population proportion.

18. Suppose you ran a between-subjects ANOVA in a study that had 3 levels of the independent variable, with 5 subjects assigned to each level. As part of your analysis, you calculated the following results: SStotal=1216. 738, SSbetween=787.930, and SSwithin=428.808. Calculate the F ratio. Was there a statistical difference between the three groups at the α=.05 significance level?

19. What is the effect size for the study described in Question 18? Is this a small, medium, or large effect size according to Cohen?

20. Suppose that the mean scores on the dependent variable for the three groups in the study described in Question 18 were 19, 26, and 23. Use Tukey’s HSD statistic (also called the q statistic) to determine whether any pair of these three means differed statistically from one another at the .05 significance level.

Please answer all the questions. 19 and 20 is an attachment to 18. Please also show how you got the answers so I can better understand these types of questions later in the future. Thank you

Use the sample data and confidence level given below to complete parts (a) through (d).

A research institute pill asked respondents if they felt vulnerable to identity theft. In the poll, n=1056 and x=579 who said "yes". Use a 99% confidence level.

(a) Find the best point estimate of the population p. (round to three decimals)
□

(b) Identify the value of the margin of error E (round to three decimals)
E=□

(c) Construct the confidence level.(round to three decimals)
□<p<□

(d) Write a statement that correctly interprets the confidence level. Choose the correct answer below
□A. There is a 99% chance that the true value of the population proportion will fall between the lower bound and the upper bound.

□B. 99% of the sample proportion will fall between the lower bound and upper bound

□C. One has a 99% confidence that the invernal from the lower bound to the upper bound actually does contain the true value of the population proportion.

□D. One has 99% confidence that the sample proportion is equal to the population proportion.

In D. melanogaster, a homozygous female with mutations for vestigial wings (vg), black body (b) and purple eye color (pr) was mated to a homozygous wild-type male. All the F₁ progeny, both male and female, had normal (wild-type) phenotypes for the three characteristics, indicating that the mutations are autosomal recessive. In a testcross of the F₁ females with males that have vestigial wings, black body and purple eyes, the progeny were of eight different phenotypes reflecting eight different genotypes. The order in which the genes are list below is completely arbitrary.

                                    vg      b      pr   1779

                                    vg⁺     b⁺    pr⁺ 1654

                                    vg⁺     b     pr   252

                                    vg      b⁺    pr⁺ 241

                                    vg⁺     b     pr⁺ 131

                                    vg      b⁺    pr      118

                                    vg      b      pr⁺      13

                                    vg⁺     b⁺    pr         9

                                                            4197 Total

a. Determine the linear order of the genes on the chromosome (which gene is in the middle)?

b. Calculate the recombinant frequency between the three loci.

c. Draw a genetic map of the three loci, with the correct map distance between each.

SPSS.1 A study reveals that older adults work out a little harder when they listen to music. The table below contains the data from two groups of older adults: one group listened to music while walking; the other group did not listen to music. Stride length was measured as an indicator of how hard they were working out (higher numbers = longer stride = working out harder).

What are the sample means in this study?

                                                                      M_music =                   M_control =

SPSS.2 Paste your SPSS output of the descriptive statistics below.

SPSS.3 What t statistic was obtained (calculated) for the music and exercise study.

SPSS.4 Assuming a two-tailed hypothesis test with alpha = .05, use your t-table to look up the critical t-value for this study. What are the critical t-values?

SPSS.5 What p-value is obtained from your SPSS output?

SPSS.6 Is there a statistically significant effect of music on stride length?

A company is using Markov theory to analyse switching between four different foods marketed as slimming aids. These slimming aids claim that with regular use they result in significant weight loss. Individual customers who buy these sliming aids only switch (on average) once every four months. Market research has produced the data shown below for the probability of customers switching between slimming aids. UL20/0468 Page 6 of 9 To 1 slimming aid From slimming aid 1234 1 0.04 0.02 0 0 0.55 0.89 0 0 0.30 0.04 0 0 0.11 0.05 1 2 3 4 Here, for example, there is a probability of 0.11 that a customer switches to slimming aid 4 from slimming aid 2. The current market shares are 9%, 78%, 3% and 10% for aids 1, 2, 3 and 4 respectively. (a) Copy the following table into your answer and fill in the long-run prediction for the market shares for these four slimming aids. Long-run (%, 2dp) Aid 1 Aid 2 Aid 3 Aid 4 (b) The appropriate regulatory authority in the country where these four slimming aids are marketed has been concerned about the claims made for weight loss. As a result of an investigation which they have made they intend to ban sliming aid 2 from the market in six months’ time for making false claims. Giving a clear explanation of your working, copy the following table into your answer and fill in the percentage of the market that will be affected by this ban when it is imposed in six months’ time. Value Percentage affected (2dp)