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Z Statistics for Known Population Standard Deviation Quiz

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Z Statistics for Known Population Standard Deviation Quiz

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Questions and Answers

What does the alternative hypothesis (Ha) state?

There is no significant relationship between variables

There is a known population standard deviation

There is a significant relationship between variables (correct)

There is no impact of the independent variable on the dependent variable

In hypothesis testing, what does the null hypothesis (Ho) typically suggest?

The sample data confirms the alternative hypothesis

The independent variable has no effect on the dependent variable

The alpha level is set at 0.1%

There is no significant relationship between academic integrity and technology engagement (correct)

What is the purpose of setting an alpha level in a hypothesis test?

To confirm the null hypothesis

To identify the sample size needed

To define the level of significance for the hypothesis test (correct)

To specify the direction of the effect

Why is it important to have an alpha value smaller than 0.05 in hypothesis testing?

To ensure a lower probability of making a Type I error Signup and view all the answers

What does the known population standard deviation help determine in hypothesis testing?

The sample size required for the study Signup and view all the answers

Which step of a hypothesis test involves evaluating the credibility of the null hypothesis using sample data?

Step 1: Set the criteria for a decision Signup and view all the answers

What is the purpose of selecting a specific probability value in hypothesis testing?

To define the level of significance for the hypothesis test Signup and view all the answers

How does an alpha level of 0.05 influence hypothesis testing?

It reduces the likelihood of rejecting the null hypothesis incorrectly Signup and view all the answers

What is the role of an alpha value less than 0.05 in hypothesis testing?

To lessen the chances of incorrectly rejecting null hypotheses Signup and view all the answers

In what circumstances would it be appropriate to specify the direction of effect in a hypothesis?

When setting criteria for decision-making Signup and view all the answers