A test of sobriety involves measuring the subject\'s motor skills. Suppose a tes

Question

A test of sobriety involves measuring the subject's motor skills. Suppose a test is done to determine whether the mean sobriety score for all subjects is equal to 35.0. If the null hypothesis is rejected, write the conclusion. __________ A researcher wants to check the claim that convicted burglars spend an average of 18.7 months in jail. In a hypothesis test, the null hypothesis is not rejected. Write the conclusion. __________ A public bus company official claims that the mean waiting time for bus number 14 during peak hours is less than 10 minutes. In a hypothesis test, the null hypothesis is not rejected. Write the conclusion. __________ A manufacturer makes ball bearings that are supposed to have a mean weight of 30 g. A retailer suspects that the mean weight is less than 30 g. and does a hypothesis test. The null hypothesis is rejected. Write the conclusion. __________ An analyst tests that the mean time between failures for a computer component is greater than 520 hours. The null hypothesis is rejected. Write the conclusion.

Explanation / Answer

1) TISE to reject the claim that mean sobriety score for all subjects is equal to 35.0

2) TINSE to reject the claim that convicted burglars spend an average of 18.7 months in jail.

3) TINSE to support the claim that the mean waiting time for bus number 14 during peak hours is less than 10 minutes.

4) TISE to support the claim that the mean weight of ball bearings is less than 30 g.

5) TISE to support the claim that the mean time between failures for a computer component is greater than 520 hours.

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