SOLUTION: You are given the sample mean and the sample standard deviation. Use this information to sonstruct the 90% and 95% confidence intervals for the population mean. Which interval is

Question 481040: You are given the sample mean and the sample standard deviation. Use this information to sonstruct the 90% and 95% confidence intervals for the population mean. Which interval is wider? If convenient, use technology to construct the confidence intervals.
A random sample of 40 eight- ounce servings of different juice drinks has a mean of 99.1 calories and a
Atandard deviation of 48.5 calories.
The 90% confidence interval is (__,__). (round to one decimal place as needed.)

Answer by stanbon(57347) (Show Source):
You can put this solution on YOUR website!
You are given the sample mean and the sample standard deviation. Use this information to sonstruct the 90% and 95% confidence intervals for the population mean.
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More confidence requires a wider interval.
The 95CI is wider
Which interval is wider? If convenient, use technology to construct the confidence intervals.
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A random sample of 40 eight- ounce servings of different juice drinks has a mean of 99.1 calories and a standard deviation of 48.5 calories.
The 90% confidence interval is (83.589,114.61). (round to one decimal place as needed.)
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Cheers,
Stan H.