Homework answers / question archive / Case Study 14-1 High stress2023181922 n1-1Relatively stress free2631252630n2-1)A professor of women's studies is interested in determining if stress affects the menstrual cycle

Case Study 14-1 High stress2023181922 n1-1Relatively stress free2631252630n2-1)A professor of women's studies is interested in determining if stress affects the menstrual cycle

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Case Study 14-1 High stress2023181922 n1-1Relatively stress free2631252630n2-1)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.

__         8.  Refer to Case Study 14-1. The obtained value of the appropriate statistic is _________.

a.

t_obt = -4.73

b.

t_obt = -4.71

c.

t_obt = -3.05

d.

t_obt = -0.47

 

 

 

 

 

 

 

 

 

____     9.  Refer to Case Study 14-1. The df for determining t_crit are _________.

a.

4

b.

9

c.

8

d.

3

 

 

____  10.  Refer to Case Study 14-1. Using a = .05_{2 tail}, t_crit = _________.

a.

+2.262

b.

+2.306

c.

±2.262

d.

±2.306

 

 

____  11.  Refer to Case Study 14-1. Using a = .05_{2 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

 

 

12) Using the data above calculate omega squared

 

 

13) Using the data above calculate cohen's d