n a survey, 900 adults n a certain country were asked how many hour they worked
ID: 3052703 • Letter: N
Question
n a survey, 900 adults n a certain country were asked how many hour they worked in the previous week as on e results, a 9 % confidence inte v upper bound: 40.5. Which of the following represents a reasonable interpretation of the result? For those that are not reasonable, explain the flaw. r mean number of hours worked was ower bound .7and (a) There is a 95% chance the mean number of hours worked by adults in this country in the previous week was between 38.7 hours and 40.5 hours. O A. Flawed. This interpretation implies that the mean is only for last week. OB. Correct O C. Flawed. This interpretation makes an implication about individuals rather than the mean. D. Flawed. This interpretation implies that the population mean varies rather than the interval (b We are 95% confident that the mean number of hours worked by adults in this o u ntry in the previous week was between 38.7 hours and 40.5 hours. O A. Correct O B Flawed. This interpretation does not make it clear that the 95% is the probability that the mean is within the interval C. Flawed. This interpretation makes an implication about individuals rather than the mean. 0 D. Flawed. This interpretation implies that the population mean varies rather than the interval. (c) 95% of adults in this oountry worked between 38.7 hours and 40.5 hours last week. 0 A. Flawed. This interpretation makes an implication about individuals rather than the mean. OB. Correct ° C. Flawed. This interpretation does not make it clear that the 95% is the probability that the mean is within the interval. 0 D. Flawed. This interpretation implies that the mean is only for last week. d We are 95% confident that he mean number of hours worked by adults in a particular area o his country n he previous week was bet en 387 hours and 405 hours Click to select your answer.Explanation / Answer
a) Correct
b) Correct
c) A, this interpretation is wrong as we are taling about the mean of working hour of 900 people and not about working hour of an individual
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.