Question

A hypothesis test is performed to determine if the proportion of all six packs of seltzers sold in a particular grocery store near a college campus that are alcoholic exceeds 50%. A random sample of 152 customers that purchased seltzer is acquired (assume no customer purchases more than one six pack at time, alcoholic or not); the sample proportion of these purchases that are alcoholic is obtained. From this sample a test statistic of 2.60 is calculated, which has a corresponding P-value of 0.0047. Which of the following is true? Select one: a. The probability that, in a random sample of 152 customers purchasing seltzers, more than 50% of those customers will have purchased alcoholic seltzer is 0.0047. b. None of these statements is true. c. The probability the null hypothesis is true is 1-0.0047 = 0.9953. d. The probability that 50% of customers purchasing seltzers will be purchasing alcoholic seltzer on any given day is 0.0047. e. The probability the null hypothesis is true is 0.0047. Which of the following are true of P-values? Select one or more: a. Together with the significance level ?, they determine whether or not we reject the H_0. b. They are between 0 and 1. c. Their calculation in a hypothesis test depends on the alternative hypothesis H_A. d. They are calculated assuming the null hypothesis H_0 is true in a hypothesis test. e. They represent the probability the null hypothesis H_0 is true in a hypothesis test. f. They are used to determine the margin of error of confidence intervals.

A hypothesis test is performed to determine if the proportion of all six packs of seltzers sold in a particular grocery store near a college campus that are alcoholic exceeds 50%. A random sample of 152 customers that purchased seltzer is acquired (assume no customer purchases more than one six pack at time, alcoholic or not); the sample proportion of these purchases that are alcoholic is obtained. From this sample a test statistic of 2.60 is calculated, which has a corresponding P-value of 0.0047.

Which of the following is true?

Select one:
a. The probability that, in a random sample of 152 customers purchasing seltzers, more than 50% of those customers will have purchased alcoholic seltzer is 0.0047.
b. None of these statements is true.
c. The probability the null hypothesis is true is 1-0.0047 = 0.9953.
d. The probability that 50% of customers purchasing seltzers will be purchasing alcoholic seltzer on any given day is 0.0047.
e. The probability the null hypothesis is true is 0.0047.

Which of the following are true of P-values?

Select one or more:
a. Together with the significance level ?, they determine whether or not we reject the H_0.
b. They are between 0 and 1.
c. Their calculation in a hypothesis test depends on the alternative hypothesis H_A.
d. They are calculated assuming the null hypothesis H_0 is true in a hypothesis test.
e. They represent the probability the null hypothesis H_0 is true in a hypothesis test.
f. They are used to determine the margin of error of confidence intervals.

A hypothesis test is performed to determine if the proportion of all six packs of seltzers sold in a particular grocery store near a college campus that are alcoholic exceeds 50%. A random sample of 152 customers that purchased seltzer is acquired (assume no customer purchases more than one six pack at time, alcoholic or not); the sample proportion of these purchases that are alcoholic is obtained. From this sample a test statistic of 2.60 is calculated, which has a corresponding P-value of 0.0047.

Which of the following is true?

Select one:
a. The probability that, in a random sample of 152 customers purchasing seltzers, more than 50% of those customers will have purchased alcoholic seltzer is 0.0047.
b. None of these statements is true.
c. The probability the null hypothesis is true is 1-0.0047 = 0.9953.
d. The probability that 50% of customers purchasing seltzers will be purchasing alcoholic seltzer on any given day is 0.0047.
e. The probability the null hypothesis is true is 0.0047.

Which of the following are true of P-values?

Select one or more:
a. Together with the significance level ?, they determine whether or not we reject the H0.
b. They are between 0 and 1.
c. Their calculation in a hypothesis test depends on the alternative hypothesis HA.
d. They are calculated assuming the null hypothesis H0 is true in a hypothesis test.
e. They represent the probability the null hypothesis H0 is true in a hypothesis test.
f. They are used to determine the margin of error of confidence intervals.

Added by Mercedes W.

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