The test statistic is (option: in or not in) the critical region. Therefore, the

Question

The test statistic is (option: in or not in) the critical region. Therefore, the graduate student (option: cannot or can) reject the null hypothesis, and he (option: can or cannot) Attempts: Keep the Highest:18 4. The decision-making process AaAa A graduate student believes that people consider faces with more contrast between eye color and skin tone as more feminine. He identifies the null and alternative hypotheses as: Ho: The level of contrast between eye color and skin tone does not affect how feminine a face is considered H: The level of contrast between eye color and skin tone affects how feminine a face is considered He chooses a significance level of .01. After he collects the data and computes the sample statistics, it is time for him to make a decision about Ho. Check the two possible decisions that the graduate student can make given his choices of Ho and H There is enough evidence to reject the hypothesis that the contrast between eye color and skin tone does not affect how feminine a face is considered. There is enough evidence to reject the hypothesis that the contrast between eye color and skin tone affects how feminine a face is considered There is not enough evidence to reject the hypothesis that the contrast between eye color and skin tone affects how feminine a face is considered. There is not enough evidence to reject the hypothesis that the contrast between eye color and skin tone does not affect how feminine a face is considered. What decision should the graduate student make f the test statistic is in the critical region?

Explanation / Answer

The two possible decisions are:

There is enough evidence to reject the hypothesis that the contrast between eye colour and skin tone does not affect how feminine a face is considered.

There is not enough evidence to reject the hypothesis that the contrast between eye colour and skin tone affects how feminine a face is considered. (Ans).

If the test-statistic is in the critical region, the graduate student should reject the null hypothesis. (Ans).

The test-statistic is in the critical region. Therefore the graduate student should reject the null hypothesis and he has enough evidence to conclude that the level of contrast between eye colour and skin tone affects how feminine a face is considered. (Ans).

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