the management of gogo carts is considering a new method of assembling its golf cart. the present method requires a mean time of 42.3 minutes 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 0.10 level of significance, can we conclude that the assembly time using the new method is faster? a. what is the decision rule? (negative amount should be indicated by a minus sign. round your answer to 3 decimal places.) b. compute the value of the test statistic. (negative amount should be indicated by a minus sign. round your answer to 3 decimal places.) c. what is your decision regarding h0? multiple choice reject fail to reject