Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Use for Questions 1-6:A random sample of 100 males found that 80% watched a particular TV show in the past week.A random sample of 100

Use for Questions 1-6:A random sample of 100 males found that 80% watched a particular TV show in the past week.A random sample of 100 females found that 50% watched the same TV show in the past week

1.The standard error for the sampling distribution of the sample proportion for males is:

A)0.04

B)0.0016

C)0.08

D)0.16

2.The standard error for the sampling distribution of the sample proportion for females is:

A)0.05

B)0.25

C)0.0025

D)0.10

3.What is the standard error for the difference between our two sample values?

A)((0.04)2 + (0.05)2) = 0.0041 = 0.064

B)(0.04 + .05) = 0.09 = 0.30

C)((0.0016)2 + (0.0025)2) = 0.000009 = 0.003

D)(0.08 + 0.10) = 0.18 = .42

4.What is the formula for a 95% confidence interval of the difference between the two population proportions?

A)(sample proportion 1 - sample proportion 2) +/- 2 *SED

B)(sample proportion 1 - sample proportion 2) +/- 1*SED

C)(sample proportion 1 - sample proportion 2) +/- 3*SED

D)(sample proportion 1 - sample proportion 2) +/- 2

5.What is the 95% confidence interval of the difference between the two population proportions?

A)(.80 - .50) +/- 2 * 0.064 = .30 +/- 0.128 = (0.172 to 0.428) = (17.2% to 42.8%)

B)(.80 - .50) +/- 1 * 0.003 = .30 +/- 0.003 = (0.297 to 0.303) = (29.7% to 30.3%)

C)(.80 - .50) +/- 2 * 0.003 = .30 +/- 0.006 = (0.294 to 0.306) = (29.4% to 30.6%)

D)(.80 - .50) +/- 3 * 0.003 = .30 +/- 0.009 = (0.291 to 0.309) = (29.1% to 30.9%)

E)(.80 - .50) +/- 1 * 0.064 = .30 +/- 0.064 = (0.236 to 0.364) = (23.6% to 36.4%)

F)(.80 - .50) +/- 3 *0.064 = .30 +/- 0.192 = (0.108 to 0.492) = (10.8% to 49.2%)

6.The confidence interval in #5 shows that:

A)the difference between the population proportions for the two groups is significant

B)the difference between the population proportions for the two groups is not significant

C)cannot tell from the information given

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

Discovering Advanced Algebra An Investigative Approach

Authors: Jerald Murdock, Ellen Kamischke, Eric Kamischke

1st edition

1559539844, 978-1604400069, 1604400064, 978-1559539845

More Books

Students also viewed these Mathematics questions