In a survey. 1400 adults in a certain country were asked how many hours they wor

Question

In a survey. 1400 adults in a certain country were asked how many hours they worked in the previous week. Based on the results, a 95% confidence interval for mean number of hours worked was lower bound 41 8 and upper bound 43.3 Which of the following represents a reasonable interpretation of the result' For those that are not reasonable, explain the flaw (a) There is a 95% chance the mean number of hours worked by adults in this country in the previous week was between 418 hours and 43.3 hours. A. Correct B. Flawed This interpretation makes an implication about individuals rather than the mean C. Flawed This interpretation implies that the mean is only for last week D. Flawed This interpretation implies that the population mean varies rather than the interval

Explanation / Answer

A confidence interval is a range of values that describes the uncertainty/possibility surrounding an estimate.

I think here option D) is correct.

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