5) Carter Motor Company claims that its new sedan, the Libra, will average bette

Question

5) Carter Motor Company claims that its new sedan, the Libra, will average better than 22 miles 15) per gallon, which is the gas mileage of its competitor.pi The hypotheses are as follows Null hypothesis mean gas mileage-22mpg · Alternative hypothesis mean gas mileage 22mpg A) Rejecting the null hypothesis means there is evidence that the mean gas mileage is greafer o- reyet. than 23 mpg Accepting the null hypothesis means there is evidence to conclude that the mean gas mileage is equal to 23 mpg B) Rejecting the null hypothesis means there is evidence that the mean gas mileage is not equal to 23 mpg Failing to reject the null hypothesis means there is insufficient evidence to conclude that the mean gas mileage is greater than 23 mpg C) Rejecting the null hypothesis means there is evidence that the mean gas mileage is greater than 23 mpg Failing to reject the null hypothesis means there is insufficient evidence to conclude that the mean gas mileage is greater than 23 mpg Rejecting the null hypothesis means there is evidence that the mean gas mileage is greater han 23 mpg Failing to reject the null hypothesis means there is insufficlent evidence to conclude that the mean gas mileage is equal to 23 mpg

Explanation / Answer

15

Correct answer is C

if we reject the null hypothesis then it means that there is sufficient evidence to conclude that mean > 23

fail to reject null hypothesis means that there is insufficient evidence to conclude that mean > 23

14)

C

if we reject the null hypothesis then it means that there is sufficient evidence to conclude that mean< 16 ounces

failing to reject null hypothesis means that there is insufficient evidence to conclude that mean < 16 ounces

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