Question: Constructing Confidence Intervals, In Exercises 35 &36, you are given the sample mean and the population standard deviation. Use this information to construct 90% and

Constructing Confidence Intervals, In Exercises 35 &36, you are given the sample mean and the population standard deviation. Use this information to construct 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals.

35. Gold Prices From a random sample of 48 business days from January 4, 2010, through February 24, 2017, U.S. gold prices had a mean of $1368.48. Assume the population standard deviation is $202.60. (Source: Federal Reserve Bank of St. Louis)

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