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Statistical Analysis of Golf Cart Assembly

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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?

a) State the null hypothesis and the alternate hypothesis.
b)Show the decision rule graphically. Use the .05 significance level.
c)Compute the value of t.
d)What is your decision regarding the null hypothesis
e)Briefly summarize your results.

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Solution Summary

This solution provides a null and alternative hypothesis concerning the mean time and calculates the test statistic for comparison against the p-value. A decision is then made to either accept the null or alternative hypothesis. The decision rule for normal distribution is graphically represented in an annotated diagram.

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