A Manufacturer Claims That the Mean Amount of Juice in Its

Multiple Choice

A manufacturer claims that the mean amount of juice in its 16 ounce bottles is $16.1$ ounces. A consumer advocacy group wants to perform a hypothesis test to determine whether the mean amount is actually less than this. The mean volume of juice for a random sample of 70 bottles was $15.94$ ounces. Do the data provide sufficient evidence to conclude that the mean amount of juice for all 16ounce bottles, $\mu$ , is less than $16.1$ ounces? Perform the appropriate hypothesis test using a significance level of $0.10$ . Assume that $\sigma=0.9$ ounces.

A) The $z$ of $-1.49$ provides sufficient evidence to conclude that the mean amount of juice is less than $16.1 \mathrm{oz}$ .
B) The $z$ of $-1.49$ does not provide sufficient evidence to conclude that the mean amount of juice is less than $16.1 \mathrm{oz}$ .

C) The $z$ of $-0.1778$ does not provide sufficient evidence to conclude that the mean amount of juice is less than $16.1 \mathrm{oz}$ .
D) The $z$ of $-0.1778$ provides sufficient evidence to conclude that the mean amount of juice is less than $16.1 \mathrm{oz}$ . 113