16. A random sample of 25 housewives showed that they spend an average of 35 hours...
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16. A random sample of 25 housewives showed that they spend an average of 35 hours a week on household chores with a standard deviation of 4.5 hours. Assume that the number of hours spent on household chores by all housewives has an approximate normal distribution. Construct a 99% confidence interval for the mean number of hours spent on household chores by all housewives. Interpret the results. (4 marks) 16. A random sample of 25 housewives showed that they spend an average of 35 hours a week on household chores with a standard deviation of 4.5 hours. Assume that the number of hours spent on household chores by all housewives has an approximate normal distribution. Construct a 99% confidence interval for the mean number of hours spent on household chores by all housewives. Interpret the results. (4 marks)
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Constructing the 99 Confidence Interval We can follow these steps to construct the 99 confidence int... View the full answer
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