Standard Deviation, Significance Level
The management of White Industries is considering a new method of assembling its golf cart.
The present method requires 42.3 minutes, on the average, to assemble a cart. The mean assembly
time for a random sample of 24 carts, using the new method, was 40.6 minutes, and the standard
deviation of the sample was 2.7 minutes. Using the .10 level of significance, can we
conclude that the assembly time using the new method is faster?
https://brainmass.com/statistics/hypothesis-testing/standard-deviation-significance-level-14153
Solution Preview
we can conduct a t-test for the case:
<br>Ho: M=40.6 or the mean assembly time is 40.6 minutes
<br>Ha: M>40.6 or the mean assembly time is ...
Solution Summary
The management of White Industries is considering a new method of assembling its golf cart.
The present method requires 42.3 minutes, on the average, to assemble a cart. The mean assembly
time for a random sample of 24 carts, using the new method, was 40.6 minutes, and the standard
deviation of the sample was 2.7 minutes. Using the .10 level of significance, can we
conclude that the assembly time using the new method is faster?