In a survey, 700 adults in a certain country were asked how many hours they work
ID: 3179931 • Letter: I
Question
In a survey, 700 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: 40.4 and upper bound: 44.2. 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
40.440.4
hours and
44.244.2
hours.
A. Flawed. This interpretation makes an implication about individuals rather than the mean.
B. Flawed. This interpretation implies that the population mean varies rather than the interval.
C. Correct
D. Flawed. This interpretation implies that the mean is only for last week
Explanation / Answer
The answer is correct.
the data given is 95% confidence inetrval for the mean number of hours worked by adults in this country in the previous week .
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.