You may need to use the appropriate appendix table or technology to answer this question. Sparr Investments, Inc., specializes in tax-deferred investment opportunities for its clients. Recently Sparr offered a payroll deduction investment program for the employees of a particular company. Sparr estimates that the employees currently averaging $100 or less per month in tax-deferred investments. A sample of 39 employees will be used to test Sparr's hypothesis about the current level of investment activity among the population of employees. Assume the employee monthly tax-deferred investment amounts have a population standard deviation of $75 and that a 0.05 level of significance will be used in the hypothesis test. (a) What is the type II error in this situation? O Reject Sparr Investments' claim that the employees are currently averaging $100 or less per month in tax-deferred investments when it is true. O Reject Spar Investments' claim that the employees are currently averaging $100 or less per month in tax-deferred investments when it is false. O Fail to reject Sparr Investments' claim that the employees are currently averaging $100 or less per month in tax-deferred investments when it is false. O Fail to reject Sparr Investments' claim that the employees are currently averaging $100 or less per month in tax-deferred investments when it is true. (b) What is the probability of the type II error if the actual mean employee monthly investment is $125? (Round your answer to four decimal places. If it is not possible to commit a type II error enter NOT POSSIBLE.) Enter a number. (c) What is the probability of the type II error if the actual mean employee monthly investment is $130? (Round your answer to four decimal places. If it is not possible to commit a type II error enter NOT POSSIBLE.) (d) Assume a sample size of 78 employees is used and repeat parts (b) and (c). What is the probability of the type II error if the actual mean employee monthly investment is $125? (Round your answer to four decimal places. If it is not possible to commit a type II error enter NOT POSSIBLE.) What is the probability of the type II error if the actual mean employee monthly investment is $130? (Round your answer to four decimal places. If it is not possible to commit a type II error enter NOT POSSIBLE.)
You may need to use the appropriate appendix table or technology to answer this question. Sparr Investments, Inc., specializes in tax-deferred investment opportunities for its clients. Recently Sparr offered a payroll deduction investment program for the employees of a particular company. Sparr estimates that the employees currently averaging $100 or less per month in tax-deferred investments. A sample of 39 employees will be used to test Sparr's hypothesis about the current level of investment activity among the population of employees. Assume the employee monthly tax-deferred investment amounts have a population standard deviation of $75 and that a 0.05 level of significance will be used in the hypothesis test. (a) What is the type II error in this situation? O Reject Sparr Investments' claim that the employees are currently averaging $100 or less per month in tax-deferred investments when it is true. O Reject Spar Investments' claim that the employees are currently averaging $100 or less per month in tax-deferred investments when it is false. O Fail to reject Sparr Investments' claim that the employees are currently averaging $100 or less per month in tax-deferred investments when it is false. O Fail to reject Sparr Investments' claim that the employees are currently averaging $100 or less per month in tax-deferred investments when it is true. (b) What is the probability of the type II error if the actual mean employee monthly investment is $125? (Round your answer to four decimal places. If it is not possible to commit a type II error enter NOT POSSIBLE.) Enter a number. (c) What is the probability of the type II error if the actual mean employee monthly investment is $130? (Round your answer to four decimal places. If it is not possible to commit a type II error enter NOT POSSIBLE.) (d) Assume a sample size of 78 employees is used and repeat parts (b) and (c). What is the probability of the type II error if the actual mean employee monthly investment is $125? (Round your answer to four decimal places. If it is not possible to commit a type II error enter NOT POSSIBLE.) What is the probability of the type II error if the actual mean employee monthly investment is $130? (Round your answer to four decimal places. If it is not possible to commit a type II error enter NOT POSSIBLE.)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:You may need to use the appropriate appendix table or technology to answer this question.
Sparr Investments, Inc., specializes in tax-deferred investment opportunities for its clients. Recently Sparr offered a payroll deduction investment program for the employees of a particular company. Sparr estimates that the employees are
currently averaging $100 or less per month in tax-deferred investments. A sample of 39 employees will be used to test Sparr's hypothesis about the current level of investment activity among the population of employees. Assume the
employee monthly tax-deferred investment amounts have a population standard deviation of $75 and that a 0.05 level of significance will be used in the hypothesis test.
(a) What is the type II error in this situation?
O Reject Sparr Investments' claim that the employees are currently averaging $100 or less per month in tax-deferred investments when it is true.
O Reject Sparr Investments' claim that the employees are currently averaging $100 or less per month in tax-deferred investments when it is false.
O Fail to reject Sparr Investments' claim that the employees are currently averaging $100 or less per month in tax-deferred investments when it is
false.
O Fail to reject Sparr Investments' claim that the employees are currently averaging $100 or less per month in tax-deferred investments when it is
true.
(b) What is the probability of the type II error if the actual mean employee monthly investment is $125? (Round your answer to four decimal places. If it is not possible to commit a type II error enter NOT POSSIBLE.)
.............................
Enter a number.
(c) What is the probability of the type II error if the actual mean employee monthly investment is $130? (Round your answer to four decimal places. If it is not possible to commit a type II error enter NOT POSSIBLE.)
(d) Assume a sample size of 78 employees is used and repeat parts (b) and (c).
What is the probability of the type II error if the actual mean employee monthly investment is $125? (Round your answer to four decimal places. If it is not possible to commit a type II error enter NOT POSSIBLE.)
What is the probability of the type II error if the actual mean employee monthly investment is $130? (Round your answer to four decimal places. If it is not possible to commit a type II error enter NOT POSSIBLE.)
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