An organization monitors many aspects of elemental and secondary education natio

Question

An organization monitors many aspects of elemental and secondary education nationwide. Their 1995 numbers are often used as a baseline to assess changes. In 1995 24% ry of students had not been absent from school even once during the previous month. In the 1999 survey, responses from 8272 randomly selected students showed that this figure had slipped to 23%. Officials would note any change in the rate of student attendance. Answer the questions below. (a) Write appropriate hypotheses. Ho. The percentage of students in 1999 with perfect attendance the previous month is equal to 24%. HA The percentage of students in 1999 with perfect attendance the previous month is less than 24%. (b) Check the necessary assumptions. The independence condition is satisfied. The randomization condition is satisfied. The 10% condition is satisfied. The successMailure condition is satisfied. (c) Compute the test statistic. z (Round to two decimal places as neede

Explanation / Answer

here p=0.24

n=8272

hence std error=(p(1-p)/n)1/2 =0.0047

also phat=0.23

there fore test stat z=(phat-p)/std error =-2.13

p value =0.0166

d) we can reject the... option A

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