A.) Write appropriate hypothesis. B.) Check the necessary assumptions. ( Options

Question

A.) Write appropriate hypothesis. B.) Check the necessary assumptions. ( Options are 1. Satisfied or 2. Not satisfied C. Perform the test and find the P-Value D. State your conclusion. Assume a=0.05. TWO PICTURES ATTACHED This Question: 1 pt 40f 7 (0 complete) This Test: 7 pts possible Question Help Anorganization monitors many aspects c elementary and secondary education nationwide. Their 200 runters are often used as a baseliotoassess chrge.h2 45% ofstonts had not been absent from school even once during the previous month, In the 2004 survey, responses from 7968 randomly selected students showed that this figure had slpped to 4 oeias would note any change in the rate of student attendance. Answer the questions below (a) Write appropriale hypotheses Hoi The percentage of students in 2004 with porlect attendance the previous month Ha The percentage of students in 2004 with porfect attendanoe the pravious month equal to 45% greater than 45%. is less than 45%. is dient from 45%. (b) Check the necessary assumptions The independence condition is The randomization condition is The 10% oondto) is The success/failure condition is (c) Parform the test and find the P-value p-vaue-L(Round to three deanal places as needed) Click to select your answerls 3

Explanation / Answer

a ) H0:P = 0.45     EQUAL TO 45%

   Ha: P< 0.45     LESS THAN 45 %

B) ALL CONDITIONS ARE SATISFIED

C) STD = SQRT(P (1-P) /N = SQRT[( 0.45 *0.44)/7986] =0.00497

test stat =( 0.44-0.45) /0.00497 = -2.012 from standars z table we have

p value is 0.0222

d) option c we can reject the hypothesis there is a sufficent evidence

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