Question

Asked Oct 20, 2019

Assume that

26.6%

of people have sleepwalked. Assume that in a random sample of
1517

adults,
418

have sleepwalked.a. Assuming that the rate of

26.6%

is correct, find the probability that
418

or more of the
1517

adults have sleepwalked.b. Is that result of

418

or more significantly high?c. What does the result suggest about the rate of

26.6%?

Step 1

It is given that p is 0.266 and n is 1,517.

Step 2

The mean and standard deviation using normal approximation to binomial are 403.522 (=1,517*0.266) and 17.210 (=sqrt(1,517*0.266*0.734))....

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