Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

**Show all of your work or you will lose points! Assume that you do not know the population standard deviation. You have a sample of

**Show all of your work or you will lose points! Assume that you do not know the population standard deviation.

  1. You have a sample of 267 students from criminal justice, political science, finance and accounting, and electrical and computer engineering classes. You need to examine whether your sample is representative of the entire WCU undergraduate student population in terms of age. You know that the average age for the WCU student population is 22.8, but you do not know the standard deviation of the population. The average age is 21.77 in your sample, with a standard deviation of 4.039. Make sure that you apply all steps of hypothesis testing.

  1. Practice using the t-table in the Appendix.Complete the following table by filling in the degrees of freedom, the critical value, and whether you would reject or fail to reject the null.

Sample size

Level of significance

Obtained t-value (step 4)

Degrees of freedom

Critical t-value (step 3)

Reject or fail to reject null

15

.05

1.692

237

.01

-2.021

41

.05

1.723

101

.01

2.621

27

.05

-2.754

2a.

2b.

2c.

2d.

2e.

  1. You now want to see if your sample is representative of the population in terms of race. Can you use the single sample t-test? Why or why not?

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

A First Course in General Relativity

Authors: Bernard Schutz

2nd edition

521887054, 978-0521887052

More Books

Students also viewed these Mathematics questions

Question

What is cost of conformance? Nonconformance?

Answered: 1 week ago

Question

=+How would that help you see the influence of society?

Answered: 1 week ago