Introduction to Hypothesis Testing

Question 1

Complete the "State” and "Plan” steps. Which statements are true? Check all that apply.

Revolt · Accepted Answer

H0: p = 0.15; The random condition is met.; The 10% condition is met.; The large counts condition is met.; The test is a z-test for one proportion.

Question 2

Question 2

Revolt · Accepted Answer

is different from

Question 3

Question 3

Revolt · Accepted Answer

0.97

Question 4

Question 4

Revolt · Accepted Answer

households

Question 5

Question 5

Revolt · Accepted Answer

purchase toilet paper

Question 6

Complete the "Do” and "Conclude” steps using the z-table. Which statements are true? Check all that apply.

Revolt · Accepted Answer

The test statistic is z = 2.172.; The P-value is 0.015.; We reject H0.

Question 7

Complete the “State” step for this test. H0: p = Ha: p where p = the true proportion of all that .

Revolt · Accepted Answer

0.97; Selection 1: 0.97; Selection 2: is different from; Selection 3: 0.97; Selection 4: households; Selection 5: purchase toilet paper

Question 8

Plan: The analyst should carry out a z-test for one proportion. Determine if each condition is met or not met. Random: met 10%: Large counts: What is the test statistic and P-value? Test statistic: z = P-value: The analyst should H0.

Revolt · Accepted Answer

met; Selection 1: met; Selection 2: met; Selection 3: 1.31; Selection 4: 0.19; Selection 5: fail to reject

Question 9

✔ is less thanis greater than

Revolt · Accepted Answer

is less than; Selection 1: is less than; Selection 2: reject; Selection 3: have; Selection 4: less than 0.5

Question 10

Adults tend to believe that a majority of teenagers sleep in on Saturdays, but maybe that is a misconception. A random sample of 120 teenagers showed that 48 slept in the previous Saturday. Use the computer output provided below to determine if there is convincing evidence at the α = 0.05 level that the true proportion of teenagers who slept in on the previous Saturday is less than 0.5.Use this computer output to answer the questions.Based upon the 95% confidence interval, it is reasonable to claim that the true proportion of all teenagers who slept in on the previous Saturday is between which two values?

Revolt · Accepted Answer

0.3124 and 0.4877

Introduction to Hypothesis Testing Answers

More from this Course

TRY EDGENUITY HACKS