Homework Answers
Correct answer is-
a) The power will increase.
As the sample size increases, power of the test also increases.
Add Answer to:
2. The power calculated for a given study is roughly.8. If everything else remains the same...
2. Assume that OfficeMart places orders more frequently, but everything else remains the same. On your...
2. Assume that OfficeMart places orders more frequently, but everything else remains the same. On your worksheet increase the number of orders from 4 to 20. (Prior to completing this requirement, change all worksheet figures back to their original amounts.) 1 Chapter 7: Applying Excel 3 4 5 Data Manufacturing overhead Selling and administrative overhead $ $ 500,000 300,000 Other 8 9 10 Manufacturing overhead Selling and administrative overhead Total activity Assembling Units 50% 10% 1,000 units Processing Orders 35%...
Dana uses the following parameters to determine that she needs a sample size of 140 participants...
Dana uses the following parameters to determine that she needs a sample size of 140 participants for her study that will compare the means of two independent groups (t-test) using a one-tailed hypothesis: Effect size (d) = .5 = .05 Power(1 - b) = .90 Using the above information, answer each of the following questions. If Dana keeps alpha and sample size the same, but desires an effect size of .80, what will happen to power? Will it increase or...
2. Assume that Office Mart places orders more frequently, but everything else remains the same. On...
2. Assume that Office Mart places orders more frequently, but everything else remains the same. On your worksheet increase the number of orders from 4 to 13. (Prior to completing this requirement, change all worksheet figures back to their original amounts.) B с D E F A 1 Chapter 7: Applying Excel 2 3 Data 4 Manufacturing overhead 5 Selling and administrative overhead 6 $500,000 $300.000 7 Assernbling Units 50% 10% 1,000 units Processing Orders 35% 45% 250 orders Supporting...
If a research team increases the sample size for a study, the power of their statistical...
If a research team increases the sample size for a study, the power of their statistical tests will: a) stay the same, b) decrease, c) increase
if l is increased and everything remains the same what will happen to h? 6.25 Experimental...
if l is increased and everything remains the same what will
happen to h?
6.25 Experimental measurements of the convection heat transfer coefficient for a square bar in cross flow yielded the following values: 50 W/m2 K when =40 W/m2-K when 20 m/s ½=15 m/s 0.5 m Air Assume that the functional form of the Nusselt number is Nu C Re Pr, where C, m, and n are constants. (a) What will be the convection heat transfer coefficient for a...
1. Circle the appropriate word choice in each of a thru e below. All else being...
1. Circle the appropriate word choice in each of a thru e below. All else being the same, the chances of getting a "significant result” increases as a. Sample size (increases/decreases) b. Population std deviation (increases/decreases) c. Effect size (increases/decreases) d. Alpha (increases/decreases) e. P-value of a test (increases/decreases) 2. For fixed sample size, decreasing alpha (increases/decreases) beta, and increases/decreases the power of the test? 3. For fixed alpha, decreasing sample size will increase/decrease) power? 4. For fixed alpha and...
Suppose that for a perfectly competitive market the initial demand curve is given by the equation...
Suppose that for a perfectly competitive market the initial demand curve is given by the equation P = 10 − Q and the supply curve is given by the equation P = 2 + Q. Now, suppose that the only change to this market is that the number of buyers increases, giving rise to a new demand curve that has the same slope as the initial demand curve. (Everything else remains the same.) Then (A) consumer surplus (unambiguously) increases. (B)...
For Problem 1 and 2: A random sample of 16 graduates of a certain secretarial school...
For Problem 1 and 2: A random sample of 16 graduates of a certain secretarial school typed an average of 85 words per minute with a standard deviation of 8 words per minute. Assume that the number of words typed per minute of a randomly selected graduates follows a normal distribution 1. (4 pts) a 95% confidence interval to estimate the average number of words typed by all graduates of this school. Remember to state the assumptions and interpret the...
Please answer all 3 questions 8. 7. Question 9 1 pts Assume that the data has...
Please answer all 3 questions
8.
7.
Question 9 1 pts Assume that the data has a normal distribution and the number of observations is greater than fifty. Find the critical z value used to test a null hypothesis. a=0.05 for a test of the hypothesis that the mean is greater than or equal to 98. 0 -2.326 0 -1.960 0 -1.645 O +1.645 O 1.960 Find the appropriate critical value (either Za/2 or ta/2) Confidence level = 99% and...
2. Everything remains the same as in problem #1 except we have a different time requirement...
2. Everything remains the same as in problem #1 except we have a different time requirement table for each castaway to pick a cup of berries or catch one fish. Again, we'll assume that the time requirement remains constant, no matter how much time is devoted to these activities. Suppose each of them works 12 hours per day. I Cup of Berries I hours 2 hour 1 Fish l hour 3 hours Robinson Friday a. Graph the PPF of Robin...
2. Assume that OfficeMart places orders more frequently, but everything else remains the same. On your worksheet increase the number of orders from 4 to 20. (Prior to completing this requirement, change all worksheet figures back to their original amounts.) 1 Chapter 7: Applying Excel 3 4 5 Data Manufacturing overhead Selling and administrative overhead $ $ 500,000 300,000 Other 8 9 10 Manufacturing overhead Selling and administrative overhead Total activity Assembling Units 50% 10% 1,000 units Processing Orders 35%...
2. Assume that Office Mart places orders more frequently, but everything else remains the same. On your worksheet increase the number of orders from 4 to 13. (Prior to completing this requirement, change all worksheet figures back to their original amounts.) B с D E F A 1 Chapter 7: Applying Excel 2 3 Data 4 Manufacturing overhead 5 Selling and administrative overhead 6 $500,000 $300.000 7 Assernbling Units 50% 10% 1,000 units Processing Orders 35% 45% 250 orders Supporting...
if l is increased and everything remains the same what will
happen to h?
6.25 Experimental measurements of the convection heat transfer coefficient for a square bar in cross flow yielded the following values: 50 W/m2 K when =40 W/m2-K when 20 m/s ½=15 m/s 0.5 m Air Assume that the functional form of the Nusselt number is Nu C Re Pr, where C, m, and n are constants. (a) What will be the convection heat transfer coefficient for a...
1. Circle the appropriate word choice in each of a thru e below. All else being the same, the chances of getting a "significant result” increases as a. Sample size (increases/decreases) b. Population std deviation (increases/decreases) c. Effect size (increases/decreases) d. Alpha (increases/decreases) e. P-value of a test (increases/decreases) 2. For fixed sample size, decreasing alpha (increases/decreases) beta, and increases/decreases the power of the test? 3. For fixed alpha, decreasing sample size will increase/decrease) power? 4. For fixed alpha and...
For Problem 1 and 2: A random sample of 16 graduates of a certain secretarial school typed an average of 85 words per minute with a standard deviation of 8 words per minute. Assume that the number of words typed per minute of a randomly selected graduates follows a normal distribution 1. (4 pts) a 95% confidence interval to estimate the average number of words typed by all graduates of this school. Remember to state the assumptions and interpret the...
Please answer all 3 questions
8.
7.
Question 9 1 pts Assume that the data has a normal distribution and the number of observations is greater than fifty. Find the critical z value used to test a null hypothesis. a=0.05 for a test of the hypothesis that the mean is greater than or equal to 98. 0 -2.326 0 -1.960 0 -1.645 O +1.645 O 1.960 Find the appropriate critical value (either Za/2 or ta/2) Confidence level = 99% and...
2. Everything remains the same as in problem #1 except we have a different time requirement table for each castaway to pick a cup of berries or catch one fish. Again, we'll assume that the time requirement remains constant, no matter how much time is devoted to these activities. Suppose each of them works 12 hours per day. I Cup of Berries I hours 2 hour 1 Fish l hour 3 hours Robinson Friday a. Graph the PPF of Robin...
Most questions answered within 3 hours.
-
Computer Programming II CS141(Java)
Mention the appropriate relationship between following
classes:
HOD–StaffMember
Car–Ferrari
Student-Address
BankAccount–FixedAccount
House-Building...
asked 2 hours ago -
Assume one of your finals has 50 questions on it, and
lucky for you, it's all...
asked 3 hours ago -
Rice Products in Bangladesh
Business behavior is derived in large part from the basic cultural
environment...
asked 4 hours ago -
The following base sequence is found for a mRNA fragment from
wild-type E. coli: 5'- UAUCAGUAGAUAAUGUAACC-3'...
asked 5 hours ago -
For this exercise, round all regression parameters to three
decimal places.
One of the two tables...
asked 5 hours ago -
What is the 5% level of significance for mean = 3.60, standard
deviation = 0.94, and...
asked 5 hours ago -
Prior to beginning work on this discussion, please read the
article by Hayley Peterson, 15 Companies...
asked 5 hours ago -
Which pair of aqueous solutions, when mixed, will form a
precipitate?
A) NaNO3 and AgC2H3O2
B)...
asked 6 hours ago -
1-Write an algorithm to get two numbers from the user (as
inputs) and calculate the sum...
asked 9 hours ago -
Define white-collar crime. What is the difference between
offender and offense-based definitions of white-collar crime? What...
asked 10 hours ago -
Consider a reaction which is 1st order with respect to A and 1st
order with respect...
asked 10 hours ago -
c++
The length of the hypotenuse of a right-angled triangle is the
square root of the...
asked 10 hours ago