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Statistics
Tutor: None Selected Time limit: 1 Day

For each of the following, indicate whether the expected relationship between the two variables will be positive (+), negative (-), or zero:

 

a.       size of house and size of electric bill

b.      height of parents and height of children

c.        air humidity level and people’s energy level

d.      number of books read per year and age at which got first eyeglasses

e.       hours spent at the beach and depth of tan

 

Jun 11th, 2015

Thank you for the opportunity to help you with your question!

a size of house and size of electric bill ----Positive relationship

b.  height of parents and height of children -Positive relationship

c.   air humidity level and people’s energy level--zero relationship

d.  number of books read per year and age at which got first eye glasses ---zero relationship

e.  hours spent at the beach and depth of tan ----Zero relationship

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Jun 11th, 2015

A dorm has 86 men and 132 women living in it.  The number of men and women at the college is 753 and 1,063, respectively.  The dean of students wonders if this dorm’s sex ration reflects the sex ratio of the college.

a. State the research hypothesis

b. What is the df study?

c.  Complete the following table:

Men  Women

_________________________________  ________________________________________

No. Observed  No. Expected  No. Observed  No. Expected

d. Calculate X^2.

e.  Interpret the result at the .05 error of level.  Is the research hypothesis supported?


Jun 11th, 2015

post this as a separate question and I will help you

Jun 11th, 2015

post this as a separate question and I will help you

Jun 11th, 2015

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