It is suspected that calcium concentration may be related to blood pressure. As

Question

It is suspected that calcium concentration may be related to blood pressure. As part of a study of this relationship researchers recruited 38 subjects whose blood pressure was normal (not elevated or low) and made two measurements: 1) the calcium concentration of the blood platelets in nM, and 2) the blood pressure (an average of systolic and diastolic measurements measured in mm of mercury (Hg)).

Which best represents the null hypothesis? Which best respresents the alternative hypothesis?

A. µ1 = µ2,

B. µ1 µ2

C. µ1 > µ2

D. µ1 < µ2

E. µ1 µ2

F. µ1 µ2

G. 1 = 2

H. 1 2

I. 1 > 2

J. 1 < 2

K. 1 2

L. 1 2

M. = 0

N. 0

O. = 0

P. 0

Q. These data are consistent with a normal distribution.

R. These data are not consistent with a normal distribution.

S. The variances of the variables are approximately equal.

T. The variances of the variables are not equal.

Explanation / Answer

Null Hypothesis

M. = 0

Alternate Hypothesis

N. 0

Because we are interested in determining the relationship between variables

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