#17 In a random sample of 18 people, the mean commute time to work was 34.4 minutes and the standard deviation was 7.1 minutes. Assume the population is normally distributed and use a t-distribution to construct a 80% confidence interval for the population mean . What is the margin of error of ? Interpret the results.

The confidence interval for the population mean is_____,_____(round to one decimal places as needed)

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Let p be the population proportion for the following condition. Find the point estimates for p and q.In a survey of 1206 adults from country A, 311 said that they were not confident that the food they eat in country A is safe.

(round to three decimal places as needed)