In a test of H0: = 70 against Ha: 70, the sample data yielded ...

[a0266361136]

In a test of H0:  = 70 against Ha:  70, the sample data yielded the test statistic z = 2.11. Find and interpret the p-value for the test.
 
  What will be an ideal response?

Question 2

According to a published study, 1 in every 6 men has been involved in a minor traffic accident. Suppose we have randomly and independently sampled twenty-five men and asked each whether he has been involved in a minor traffic accident.
 
  How many of the 25 men do we expect to have never been involved in a minor traffic accident? Round to the nearest whole number.
  A) 25 B) 4 C) 6 D) 21

[dpost18]

Answer to Question 1

p-value = P(z < -2.11 or z > 2.11 ) = 2(.5 - .4826 ) = .0348; The probability of a test statistic even more contradictory to the null hypothesis than the one observed is .0348.

Answer to Question 2

D

[a0266361136]

Excellent

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