subject
Mathematics, 18.10.2019 22:10 aaronlikly

In a survey, 900 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: 41.4 and upper bound: 44.8.

which of the following represents a reasonable interpretation of the result? for those that are not reasonable, explain the flaw.

there is a 95% chance the mean number of hours worked by adults in this country in the previous week was between 41.4 hours and 44.8 hours.

(a) correct
(b) flawed. this interpretation implies that the mean is only for last week.
(c) flawed. this interpretation implies that the population mean varies rather than the interval.
(d) flawed. this interpretation makes an implication about individuals rather than the mean.

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 19:00
Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 23 = 10x a. -1.93, 11.93 b. 1.93, -11.93 c. 1.93, 11.93 d. -1.93, -11.93
Answers: 2
question
Mathematics, 21.06.2019 20:00
0if x and y vary inversely and y=6 as x=7, what is the constant of variation?
Answers: 1
question
Mathematics, 21.06.2019 21:30
Aye asap pls ! markin da brainiest too ! btw da step choices are all add, distribute, divide, n subtract
Answers: 2
question
Mathematics, 21.06.2019 22:30
Abucket of paint has spilled on a tile floor. the paint flow can be expressed with the function p(t) = 6(t), where t represents time in minutes and p represents how far the paint is spreading. the flowing paint is creating a circular pattern on the tile. the area of the pattern can be expressed as a(p) = 3.14(p)^2 part a: find the area of the circle of spilled paint as a function of time, or a[p(t)]. show your work. part b: how large is the area of spilled paint after 8 minutes? you may use 3.14 to approximate pi in this problem.
Answers: 2
You know the right answer?
In a survey, 900 adults in a certain country were asked how many hours they worked in the previous w...
Questions
question
Mathematics, 01.12.2020 22:40
Questions on the website: 13722360