Question

In: Statistics and Probability

One wants to study the daily mean travel distance of a delivery service. In trial runs...

One wants to study the daily mean travel distance of a delivery service. In trial runs of 18 randomly chosen delivery trucks, the mean and the standard deviation are found to be 310 km and 70km, respectively. Assume that the daily travel distance is normally distributed. At the 0.1 level of significance, test the claim that the daily mean travel distance is different from 350 km. What is the CONCLUSION?

Select one:

a. there is not enough assumptions to do a hypothesis test in this case.

b. None of the other answers is true.

c. there is sufficient sample evidence to support the claim that the daily mean travel distance is more than 350 km.

d. there is insufficient sample evidence to support the claim that the daily mean travel distance is different from 350 km.

e. there is sufficient sample evidence to support the claim that the daily mean travel distance is equal to 350 km.

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Expert Solution

orchestra answered 1 year ago
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