Mathematics
Mathematics, 25.03.2020 05:38, zoolo1

In 1955, Life Magazine reported that the 25 year-old mother of three worked, on average, an 80 hour week. Recently, many groups have been studying whether or not the women's movement has, in fact, resulted in an increase in the average work week for women (combining employment and at-home work). Suppose a study was done to determine if the mean work week has increased. 81 women were surveyed with the following results. The sample mean was 83; the sample standard deviation was ten. Does it appear that the mean work week has increased for women at the 5% level

answer
Answers: 3

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 14:30, brainzz04
Given the parent function of [tex]f(x)=x^4[/tex], what change will occur when the function is changed to [tex]f(\frac{1}{2} x)[/tex]?
Answers: 3
image
Mathematics, 21.06.2019 21:00, Anybody6153
Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1βˆ’0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.
Answers: 1
image
Mathematics, 21.06.2019 23:00, jasmin2344
Ineed to know the ordered pairs for this equation i need the answer quick because it’s a timed test
Answers: 3
image
Mathematics, 22.06.2019 02:30, fr996060
(2, 4) (2, 1) (6, 12) (4, -5) (-2, 4) |(2, -4) (6, -12) (-4,5) quadrilateral abcd is reflected over the x-axis. quadrilateral abcd is translated 2 units right and 1 unit down. quadrilateral abcd is dilated by a scale factor of 3. quadrilateral abcd is rotated 180Β° clockwise about the origin. reset next
Answers: 3
Do you know the correct answer?
In 1955, Life Magazine reported that the 25 year-old mother of three worked, on average, an 80 hour...

Questions in other subjects:

Konu
Mathematics, 17.07.2021 06:30