1. A restaurant chain uses 16 oz. glasses to serve root beers. A quality control specialist wants to know how much actual root beer is being served to its customers. She takes a random sample size of 12 customers and finds that the sample mean is 13.30 oz. with a sample standard deviation of 1.55 oz. Assume a normally distributed population.

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1. A restaurant chain uses 16 oz. glasses to serve root beers. A quality control specialist wants to know how much actual
root beer is being served to its customers. She takes a random sample size of 12 customers and finds that the sample
mean is 13.30 oz. with a sample standard deviation of 1.55 oz. Assume a normally distributed population.
Find the 95% Confidence Interval for the true population mean of how much root beer is actually served.
2. There are 5 teams in a basketball league. It is believed that the mean jumping heights in inches of the best 3 players
on each team is the same. The commissioner thinks otherwise. Here are the results.
Team 1
36
Team 2
32
Team 3
48
Team 4
38
Team 5
41
Transcribed Image Text:1. A restaurant chain uses 16 oz. glasses to serve root beers. A quality control specialist wants to know how much actual root beer is being served to its customers. She takes a random sample size of 12 customers and finds that the sample mean is 13.30 oz. with a sample standard deviation of 1.55 oz. Assume a normally distributed population. Find the 95% Confidence Interval for the true population mean of how much root beer is actually served. 2. There are 5 teams in a basketball league. It is believed that the mean jumping heights in inches of the best 3 players on each team is the same. The commissioner thinks otherwise. Here are the results. Team 1 36 Team 2 32 Team 3 48 Team 4 38 Team 5 41
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