Question
In: Statistics and Probability
You are given the sample mean and the population standard deviation. Use this information to construct...
You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals.
From a random sample of
75
dates, the mean record high daily temperature in a certain city has a mean of
82.31°F.
Assume the population standard deviation is
14.08°F.
Solutions
Expert Solution
Width of the confidence interval = 84.98 -
79.64 = 5.34
Width of the confidence interval = 85.50 - 79.12 = 6.38
So, 95% confidence interval has broader width.
orchestra answered 1 year agoRelated Solutions
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