The customer service desk at Company X answers phone calls in an average of 5 mi

Question

The customer service desk at Company X answers phone calls in an average of 5 minutes (H0: =5 ). After instituting a new training program, the company believes that the average time to answer a call has decreased (HA: <5 ). The company specifies a significance level of 5% (0.05).

The power of the test when, in reality, =3 is 0.85.

Before the sample is collected, the probability that the analyst fails to reject the null hypothesis when, in reality, =3, is equal to ______ (Blank 1).

Similarly, the probability that the analyst rejects H0 when, in reality, =5, is equal to_____ (Blank 2). Use two decimal places.

Explanation / Answer

1.the probability that the analyst fails to reject the null hypothesis when, in reality, =3, is equal to(Accpting H0) 0.85

2. the probability that the analyst rejects H0 when, in reality, =5, is equal to(Accepting HA): <5 0.15

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