Question

Based on a recent​ survey, 25​% of adults in a specific country smoke. In a survey of 100 students, it is found that 21 of them smoke. Find the probability that should be used for determining whether the 25​% rate is correct for students.

The probability that should be used for determining whether the 25​% rate is correct is _______

Answer 1

25​% of adults in a specific country smoke.is to be checked .

Information of the sample is :-

We will use z statistic

The corresponding p-value from table is :-

The P-Value is .355643. which is greater than 0.05 which means that we accept the null hypothesis that is 25% rate is correct. so,

The probability that should be used for determining whether the 25​% rate is correct is 0.355643.