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Suppose that we have a problem for which the null and alternative hypothesis are given by:
H0: μ = 63.8 minutes.
H1: μ > 63.8 minutes.
Is this a right-tailed test, left-tailed test, or two-tailed test. Find the z value based on a level of significance of α=.07.
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- Breyers is a major producer of ice cream and would like to test the hypothesis that the average American consumes more than 16 ounces of ice cream per month. A random sample of 15 Americans was found to consume an average of 17.2 ounces of ice cream last month. The standard deviation for this sample was 3.9 ounces. Breyers would like to set alpha = 0.05. The correct hypothesis statement for this hypothesis test would beYou wish to test the following claim (H1H1) at a significance level of α=0.005. Ho:μ1=μ2 H1:μ1≠μ2You believe both populations are normally distributed, but you do not know the standard deviations for either. However, you also have no reason to believe the variances of the two populations are not equal. You obtain a sample of size n1=17n1=17 with a mean of M1=52.8M1=52.8 and a standard deviation of SD1=9.4SD1=9.4 from the first population. You obtain a sample of size n2=14n2=14 with a mean of M2=47.4M2=47.4 and a standard deviation of SD2=10.5SD2=10.5 from the second population. What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = The p-value is... less than (or equal to) αα greater than αα This test statistic leads to a decision to... reject the null accept the null fail to reject the null As such, the final…Medicare would like to test the hypothesis that the average monthly rate for one-bedroom assisted-living facility is equal to $3,300. A random sample of 12 assisted-living facilities had an average rate of $3,690 per month. The standard deviation for this sample was $530. Medicare would like to set α = 0.02. The critical value for this hypothesis test would be