Question

An organization monitors many aspects of elementary and secondary education nationwide. Their 1999 numbers are often used as a baseline to assess changes. In 1999 43% of students had not been absent from school even once during the previous month. In the 2003 ​survey, responses from 7668 randomly selected students showed that this figure had slipped to 42%. Officials would note any change in the rate of student attendance. Answer the questions below.

​(c) Perform the test and find the​ P-value.

​P-value= _____________

(Round to three decimal places as​ needed.)

​(d) State your conclusion. Consider probabilities less than 0.05 to be suitably unlikely.

A.We can reject the null hypothesis. There is sufficient evidence to suggest that the percentage of students with perfect attendance in the previous month has changed.

B.We fail to reject the null hypothesis. There is not sufficient evidence to suggest that the percentage of students with perfect attendance in the previous month has changed.

C.We fail to reject the null hypothesis. There is sufficient evidence to suggest that the percentage of students with perfect attendance in the previous month has changed.

Answer 1

c. Here claim is that p has changed from 0.43

So hypothesis here is

Now and n=7668

So test statistics is

d. Now P value is

Hence we fail to reject the null hypothesis, hnce answer here is

B.We fail to reject the null hypothesis. There is not sufficient evidence to suggest that the percentage of students with perfect attendance in the previous month has changed.