The null hypothesis was not rejected and the probability of

The null hypothesis was not rejected and the probability of a Type I error Is less then 05. The null hypothesis was not rejected and the probability of a type 11 error is less then 05. Then null hypothesis was rejected and the probability of a type 1 error is grater then 05 Define P value Define standard error of the mean A sample of workers is classified according to whether or not they worked under tension and whether or not they developed coronary heart disease (CHD) The results below

Solution

#10 Solution

For , t =2.73 , dF =14 , alpha =0.05

For Type I error , P = 0.008   ( <0.05)

For Type II error ,P = 0.016 ( <0.05)

Hence,

Answer : a. The null hypothesis was rejected and the probability of a Type I error is less than 0.05 .