The right-hand side of the page in the form of stem-and-leat plots). Perform the

Question

The right-hand side of the page in the form of stem-and-leat plots). Perform the hypothesis test to test the claim that mu = 98.6 (this is what is believed to be normal body temperature). Include the following to support your results: The critical value(s) used for this hypothesis test, assuming alpha = 0.05. -1960, 1960 The value of your test statistic, rounded to three decimal places. -5.467 A statement about whether or not your test statistic falls into the critical region. The test statistic does not fall within the critical region. Your decision to reject or not reject the null hypothesis. I would fail to reject this as it does not fall in the rejection region. Your conclusion, in your own words Keep in mind what the claim is when you word your conclusion. Assuming the same claim and data as in #1, change the level of significance to alpha = 0.01. What are the new critical values? -2 576, 2.576 Do your decision and conclusion from #1 change? No After the data, one may think that the men and women's samples have much different means. This next part will address this by doing a 2-sample hypothesis test, much like you did in chapter 8. Taking the men's and women's data separately, find the mean and standard deviation of each sample. Round your final answers to the nearest hundredth. Test the claim that the two groups have equal respective population means (mu_1 = mu_2). Provide the following to support your claim. The critical value(s) used for this hypothesis test, assuming alpha = 0.05. The value of your test statistic, rounded to three decimal places. A statement about whether or not your test statistic falls into the critical region. Your decision to reject or not reject the null hypothesis. Your conclusion, in your own words. Keep in mind what the claim is when you word your conclusion. The conventional "normal" body temperature as established by Cad Wunderlich over 100 years ago. What were possible sources of error in Wunderlich's sampling procedure?

Explanation / Answer

1) if test statistic is -5.467

critical region is z< -1.96 or z > 1.96

since -5.467 < -1.96

TS falls in critical region

hence we reject the null hypothesis

2) here critical values are -2.576 , 2.576

since -5.467 < -2.576

result remain the same.

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