24 A jam manufacturer claims that the mean amount of jam in its 5-ounces jars is 5.1 ounces. A consumer advocate group obtained the following 99% confidence interval for the population mean weight (4.95 ounces, 5.03 ounces). Based on this interval, do you think that the manufacturer's claim is plausible at the 1% significance level? 5.1 lies in the interval (4.95, 5.03), so we reject the manufacturer's claim 5.1 does not lie in the interval (4.95, 5.03), so we do not reject the manufacturer's claim 5.1 does not lie in the interval (4.95, 5.03), so we reject the manufacturer's claim Not enough information to answer the question 3 points
25
A statistician computed 90%, 95%, 97% and 99% confidence intervals for the mean SAT scores of applicants at a business college. However, she forgot to record which interval was which and she cannot find the sample data to allow her to recreate the intervals from scratch. Which of the following is the 95% confidence interval?
(1717.1, 1782.9)
(1710.8, 1789.2)
(1706.6, 1793.4)
(1698.48
24
A jam manufacturer claims that the mean amount of jam in its 5-ounces jars is 5.1 ounces. A consumer advocate group obtained the following 99% confidence interval for the population mean weight (4.95 ounces, 5.03 ounces). Based on this interval, do you think that the manufacturer's claim is plausible at the 1% significance level?
5.1 lies in the interval (4.95, 5.03), so we reject the manufacturer's claim
5.1 does not lie in the interval (4.95, 5.03), so we do not reject the manufacturer's claim
5.1 does not lie in the interval (4.95, 5.03), so we reject the manufacturer's claim
Not enough information to answer the question
3 points
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