Items are sometimes fastened to plastic parts by screw driven into smooth holes molded in the parts. Over time, however, the screws loosen. To what common laboratory test of viscoelasticity does this correspond? (Provide explanation)
In: Chemistry
If 5.01 g of Ag2O is sealed in a 75.0-mL tube filled with 760 torr of N2 gas at 24 ∘C, and the tube is heated to 380 ∘C, the Ag2O decomposes to form oxygen and silver.
What is the total pressure inside the tube assuming the volume of the tube remains constant?
Express your answer to three significant figures and include the appropriate units.
In: Chemistry
Q/ Write and explain 2 techniques that used for gene expression analysis on protein level??
In: Biology
A. Iva Ertarm is admitted complaining of a numb right arm. When tested, she is unable to feel when her hand and arm are touched lightly, but can still feel a hard pressure. It is determined she must have a lesion or damage within her spinal cord. Which specific pathway is affected (4 pts)? How do you know it is that specific pathway (Apts)? Which side of the spinal cord is the lesion and which funiculus must! the lesion be located (4 pts)? How do you know the specific funiculus and the side (where does it decussate) (4pts)? What is the signal direction within this pathway and what is the final destination of this information (2 pts)? 2 pts for essay formatting, grammar, spelling. Be specific in your answers.
In: Anatomy and Physiology
Use SPSS for this Application Exercise:
A psychologist hypothesizes that depression increases with aging.
It is known that the general population scores a 40 on a
standardized depression test where a higher score indicates more
depression. The psychologist obtains a sample of individuals that
are all over 68 years old. What can the psychologist conclude with
α = 0.01? The data are below.
id |
depression score |
|---|---|
|
2 6 8 12 3 4 11 19 5 6 |
76.1 44.9 55.5 42.2 30.1 67.6 65.4 36.5 54.3 47.2 |
a) What is the appropriate test statistic?
---Select--- na z-test One-Sample t-test Independent-Samples t-test
Related-Samples t-test
b)
Population:
---Select--- standardized depression test elderly aging general
population depression
Sample:
---Select--- standardized depression test elderly aging general
population depression
c) Compute the appropriate test statistic(s) to
make a decision about H0.
(Hint: Make sure to write down the null and alternative hypotheses
to help solve the problem.)
p-value = ; Decision: ---Select---
Reject H0 Fail to reject H0
d) Using the SPSS results,
compute the corresponding effect size(s) and indicate
magnitude(s).
If not appropriate, input and/or select "na" below.
d = ; ---Select--- na trivial
effect small effect medium effect large effect
r2 = ; ---Select--- na
trivial effect small effect medium effect large effect
e) Make an interpretation based on the
results.
The elderly are significantly more depressed than the population.
The elderly are significantly less depressed than the population.
The elderly did not significantly differ on depression than the population.
In: Math
Two-Stage ABC for Manufacturing
Assume Sherwin-Williams Company, a large paint manufacturer, has
determined the following activity cost pools and cost driver levels
for the latest period:
| Activity Cost Pool | Activity Cost | Activity Cost Driver | |
|---|---|---|---|
| Machine setup | $990,000 | 3,000 | setup hours |
| Material handling | 840,000 | 6,000 | material moves |
| Machine operation | 200,000 | 25,000 | machine hours |
The following data are for the production of single batches of two
products, Mirlite and Subdue:
| Mirlite | Subdue | |
|---|---|---|
| Gallons produced | 30,000 | 20,000 |
| Direct labor hours | 300 | 150 |
| Machine hours | 650 | 200 |
| Direct labor cost | $ 12,300 | $ 9,500 |
| Direct materials cost | $240,000 | $ 110,000 |
| Setup hours | 12 | 10 |
| Material moves | 40 | 25 |
Determine the batch and unit costs per gallon of Mirlite and Subdue
using ABC. (Round your answers to the nearest cent.)
In: Accounting
| 1 | An expansionary fiscal policy can result in: | ||||||||
|
| 2 | The focus of supply-side fiscal policies is on: | ||||||||
|
3.
| When workers lose their job, they file for unemployment benefits; therefore government spending on such programs naturally rises during recessions. As the economy recovers and people go back to work, spending on unemployment programs shrinks. Based on the given information, which of the following is correct? | |||||||||
|
4.
| Which of the following is an example of contractionary fiscal policy? | |||||||||
|
In: Economics
In: Chemistry
Laws for Accountants
How will a state and /or federally mandated requirement for late payments not to be considered late impact the bankruptcy laws? What about the many businesses that have been required to close-should there be some consideration given to that fact when many of these business file for bankruptcy? What about those who lose their jobs because their businesses are required to close? What does this do to their lenders and their banks?
In: Accounting
5 Three Pirates Sharing 100 Gold Coins
Three pirates of different ages have a treasure of 100 gold coins. They decide to split the coins using this scheme:
The oldest pirate proposes how to share the coins, and ALL pirates (including the oldest) vote for or against it.
– If more than 50% (exclusive) of the pirates vote for it, then the coins will be shared that way and the game ends. Otherwise, the pirate proposing the scheme will be thrown overboard, and the process is repeated with the pirates that remain. Note that if exactly 50% of the pirates vote for it, then the pirate proposing the scheme will be thrown overboard.
– As pirates tend to be a bloodthirsty bunch. If a pirate would get the same number of coins if he voted for or against a proposal, he will vote against so that the pirate who proposed the plan will be thrown overboard.
Assuming that all 3 pirates are intelligent, rational, greedy, and do not wish to die, (and are rather good at math for pirates).
What will happen?
Assume now Captain Hook spots the scene and wants to share the gold as well. That is, now we have four pirates sharing the coins. Captain Hook will be the first to propose a scheme to share the coins. Assume the same rule applies. What will happen?
In: Economics
A researcher was interested in the effects of caffeine on sleep. She measured how many minutes it took for ten participants to fall asleep. Half of the participants drank a liter of caffeinated soda before going to sleep while the other half were only allowed to drink water. Summary data of minutes are presented below. Did the caffeine increase the length of time it took to fall asleep (a =.05)? (27 points total for 6a-e)
Water Group Caffeine Group
18 22
15 15
19 20
14 21
14 19
a. Name the test to be conducted and why you selected it:
b. State the null and alternative hypotheses:
c. State the CV and the decision rule. Sketch the rejection region:
d. In SPSS, calculate the observed test statistic. Paste your answer here or attach it to your assignment. In addition, calculate the value of eta2 (h2).
e. Write out an APA style conclusion based on this finding:
In: Math
1. For each of the following terms, write a sentence that properly uses one or more terms in context; underline the term(s) used in each sentence: Chemical reaction Products (of a chemical reaction) Dependent variable (of data collection) reactants (of a chemical reaction) aerobic cellular respiration independent variable (of data collection)
In: Chemistry
Provide 3 reasons why refluxing is a useful technique as opposed to heating a reaction solution in a temperature bath to perform a reaction
In: Chemistry
Two point charges are arranged so there is a small distance between them. One charge is positive and the other is negative. If the two charges have different magnitudes, there is a spot (not at infinity) where the total electric field is zero.
In: Physics
Using Grocery Rewards ~ A Gallup Poll of 500 randomly selected American adults resulted in 405 stating they use a grocery stores’ rewards card to save money on their grocery purchases. A local grocery store manager comes to you for help to use these results to provide an estimate of the population proportion of all American adults who use a grocery stores’ rewards card to save money on their grocery purchases. You ask the manager what confidence level should be used ~ 90%, 95%, 98% or 99%. The manager says “I am not sure what the confidence level really means, but use 98% I guess”.
You create the following list to help you remember the various items you need to include in your response back to the manager:
Assumptions: You know you may assume a random
sample of 500 American adults was selected. You plan to
both state and check the remaining
necessary assumption.
Computations: You will compute and report
the 98% confidence interval, showing all
work so the manager can follow your computations.
Level Explanation: Since the manager was unclear
what the confidence level means, you will include a
sentence to explain it, that is, provide an interpretation
of the 98% confidence level in context.
In: Math