Question

Task 4: Perform and document a one-sample hypothesis test to evaluate the claim "past cars have a lower average MPG than present cars." Utilize the information provided by the team analyzing the modern cars data ( the average MPG of modern cars is 24.58) to perform this test. Document all seven of the hypothesis testing steps.

MPG

mu-null= 24.58

t-data= -2.57

T-crit= 1.65

Task 5: Perform and document a one-sample hypothesis test to evaluate the claim "Past cars have a lower average horsepower than present cars." Utilize the information provided by the team analyzing the modern cars data (the average horsepower of modern cars is 107.88) to perform this test. Document all seven of the hypothesis testing steps.

Horsepower

Mu-Null=107.88

T-data= -1..48

T-crit= 1.65

Data from the entire excel sheet (If needed):

MPG

Mean/X-bar= 23.57

Standard deviation= 7.84

count=398

Horsepower

Mean/X-bar= 104.99

Standard deviation=38.96

Count= 400

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Please show all work and all steps clearly :))

Answer 1

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