Mathematics, 05.05.2020 07:37, brain9787
A professor of women's studies is interested in determining if stress affects the menstrual cycle. Ten women are randomly sampled for an experiment and randomly divided into two groups. One of the groups is subjected to high stress for two months while the other lives in a relatively stress-free environment. The professor measures the menstrual cycle (in days) of each woman during the second month. The following data are obtained.
High stress 20 23 18 19 22
Relatively stress free 26 31 25 26 30
The obtained value of the appropriate statistic is .
a. tobt = -4.73
b. tobt = -4.71
c. tobt = -3.05
d. tobt = -.047
The df for determining tcrit are .
a. 4
b. 9
c. 8
d. 3
Using a = .052 tail, tcrit = .
a. +- 2.162
b. +- 2.506
c. +- 2.462
d. +- 2.306
Using a = .052 tail, your conclusion is .
a. Accept H0; stress does not affect the menstrual cycle
b. Retain H0; we cannot conclude that stress affects the menstrual cycle
c. Retain H0; Stress affects the menstrual cycle
d. Reject H0; stress affects the menstrual cycle
Answers: 2
Mathematics, 21.06.2019 15:00, rudolph34
Alake near the arctic circle is covered by a 222-meter-thick sheet of ice during the cold winter months. when spring arrives, the warm air gradually melts the ice, causing its thickness to decrease at a constant rate. after 333 weeks, the sheet is only 1.251.251, point, 25 meters thick. let s(t)s(t)s, left parenthesis, t, right parenthesis denote the ice sheet's thickness sss (measured in meters) as a function of time ttt (measured in weeks).
Answers: 1
Mathematics, 21.06.2019 23:30, kathlynskare06
Side xy of triangle xyz is extended to point w, creating a linear pair with ∠wyz and ∠xyz. measure of an exterior angle what is the value of x? 64 80 100 180
Answers: 2
A professor of women's studies is interested in determining if stress affects the menstrual cycle. T...
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