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We’re trying to evaluate if the true proportion of people who are male is less than...

We’re trying to evaluate if the true proportion of people who are male is less than 50%. What type of test would be required to prove this?

Single sample t-test

Two sample z-test

Single sample z-test

Two sample t-test

2.Choose all that apply(5): What needs to be included for an interpretation of a hypothesis test?

The sample mean and variance

The significance level

The p-value

Sample size

The subject of interest

A mention of the true parameter

What we’ve shown/ failed to show.

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Answer #1

Question 1

We’re trying to evaluate if the true proportion of people who are male is less than 50%. What type of test would be required to prove this?

Answer:

Single sample z-test

Explanation: We know that we use the one sample z test for population proportion for checking the claim regarding the population proportion. For the given scenario, we have

H0: p ≥ 0.5 versus Ha: p < 0.5

This is a lower tailed test.

Question 2

What needs to be included for an interpretation of a hypothesis test?

Answer:

The significance level

The subject of interest

A mention of the true parameter

What we’ve shown/ failed to show.

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