COULD ANYONE HELP ME WITH THE WRONG ANSWERS?

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4 DECIMALS

Application Exercise:

Under specified driving conditions, an automobile manufacturer believes that its new truck will get more miles per gallon (mpg) than other automobiles in its class.For automobiles of the same class, the mean is 23 with a standard deviation of 3.4 mpg.To investigate, the manufacturer tested 29 of its new truck in which the mean was 21.3 mpg.What can be concluded with an?of 0.01?

a] What is the appropriate test statistic? b) Population: Sample: c) Obtainfcompute the appropriate values to make a decision about H0. Critical Value = 2.325 J ; Test Statistic = 2.615? x Decision: Failto reiectHU V J (1) If appropriate, compute the CI. If not appropriate, input "na"I for both spaces below. [na alum J] e} Compute the corresponding effect si2e{s} and indicate magnitude{s}. If not appropriate, input and select I'na" below. .2 = .r ; ,. f} Make an interpretation based on the results. 0 Under the specified conditions, the automobiles in its class get significantly less mpg than the new truck. '3) Under the specified conditions, the automobiles in its class get significantly more mpg than the new thck. 0 Under the specified conditions, there was no signfiicant mpg difference between the new truck and other automobiles in its class. K