In Unit 3 we studied several hypothesis tests: 1-Prop z-Test, 2-Prop z-Test, 1-Sample t-Test, 2- Sam

Kymani Shepherd

Kymani Shepherd

Answered question

2022-04-23

In Unit 3 we studied several hypothesis tests: 1-Prop z-Test, 2-Prop z-Test, 1-Sample t-Test, 2- Sample t-Test, Paired t-Test, Chi-Square Goodness-of-Fit Test, and Chi-Square Test for Independence. For each scenario, identify the hypothesis test that should be applied.
1. c) A researcher wants to test a claim that students perform better on math problems when not listening to music as compared to when they do listen to music.
2. d) A researcher wants to test a claim that the average amount of time that kids spend reading books has decreased.
3. e) A researcher wants to test a claim that there is an association between socoal media an mood.

Answer & Explanation

Trey Harrington

Trey Harrington

Beginner2022-04-24Added 10 answers

1 (c).
The paired t-test is used when the situation comes before and after or time-dependent.
Since, here the paired t-test would be used to test a claim that students perform better on math problems when not listening to music as compared to when they do listen to music.
2 (d).
One sample t-test is used to test the claim mean of one sample group.
Thus, here one sample t-test would be used to test a claim that the average amount of time that kids spend reading books has decreased.
Tyler Velasquez

Tyler Velasquez

Beginner2022-04-25Added 19 answers

3 (e).
The chi-square test is used to test the association between two variables.
Here, the chi-square test would be used to test a claim that there is an association between social media a mood.

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