Reference no: EM132388471

A customer service representative claims that 35% of her calls end in the customer becoming angry. Her co-workers feel that the proportion is lower. A study is conducted in which a random sample of 150 calls are screened. Of the 150 customers in the sample, 45 end in the customer becoming angry. Test her co-workers claim that the proportion is lower. Conduct this test at a 1 percent level of significance.

Calculate the value of the test statistic. When doing this calculation, do not round the numerator or the denominator. Round the final answer to the hundredths place.

z= _________ 

A customer service representative claims that 35% of her calls end in the customer becoming angry. Her co-workers feel that the proportion is lower. A study is conducted in which a random sample of 150 calls are screened. Of the 150 customers in the sample, 45 end in the customer becoming angry. Test her co-workers claim that the proportion is lower. Conduct this test at a 1 percent level of significance.

The p-value for this hypothesis test is ______ . (round to the 10 thousandths place) 

A customer service representative claims that 35% of her calls end in the customer becoming angry. Her co-workers feel that the proportion is lower. A study is conducted in which a random sample of 150 calls are screened. Of the 150 customers in the sample, 45 end in the customer becoming angry. Test her co-workers claim that the proportion is lower. Conduct this test at a 1 percent level of significance.

Conclusion: Do not reject the null hypothesis. There is insufficient sample evidence to claim that the percentage of calls that end in the customer getting angry is significantly less than____ %