a)Suppose the test statistic is t = 2.398. What is the associated p-value? Group of answer choices 0.001 < p-value < 0.002 0.005 < p-value < 0.01 0.01 < p-value < 0.02 0.0005 < p-value < 0.001 b) Suppose the p-value is 0.02 < p-value < 0.04. At α = 0.10 what is the appropriate conclusion to make? Group of answer choices Fail to reject H0 and conclude that the mean weight of all males ages 20-29 is greater than the mean weight of all males ages 75+. Reject H0 and conclude that the mean weight of all males ages 20-29 is greater than the mean weight of all males ages 75+. Reject H0 and conclude that there is a significant difference in the mean weight of all males ages 20-29 and all males ages 75+. Fail to reject H0 and conclude that there is no difference between the mean weight of all males ages 20-29 and all males ages 75+.
According to the National Health and Nutrition Examination Survey (NHANES) sponsored by the U.S. government, a random sample of 712 males between 20 and 29 years of age and a random sample of 1,001 males over the age of 75 were chosen and the weight of each of the males were recorded (in kg). Do the data provide evidence that the younger male population weighs more (on average) than the older male population? Use “Y” for ages 20-29 and “S” for ages 75+. It was found that x̅Y=83.4, sY=18.7, x̅S=78.5, and sS=19.0.
a)Suppose the test statistic is t = 2.398. What is the associated p-value?
Fail to reject H0 and conclude that the
Reject H0 and conclude that the mean weight of all males ages 20-29 is greater than the mean weight of all males ages 75+.
Reject H0 and conclude that there is a significant difference in the mean weight of all males ages 20-29 and all males ages 75+.
Fail to reject H0 and conclude that there is no difference between the mean weight of all males ages 20-29 and all males ages 75+.
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