MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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6. A research article reported that for a random sample of 850 meal purchases made at fast food chain A, the
State the appropriate null and alternative hypotheses.
H0: ?1 − ?2 > 0
Ha: ?1 − ?2 < 0
H0: ?1 − ?2 = 0
Ha: ?1 − ?2 < 0
H0: ?1 − ?2 < 0
Ha: ?1 − ?2 > 0
H0: ?1 − ?2 < 0
Ha: ?1 − ?2 = 0
H0: ?1 − ?2 = 0
Ha: ?1 − ?2 > 0
t=_______
P-value=_____
State the conclusion in the problem context.
A) We fail to reject H0. There is convincing evidence that the mean number of calories in fast food chain B meal purchases is less than the mean number of calories in fast food chain A meal purchases.
B) We fail to reject H0. There is not convincing evidence that the mean number of calories in fast food chain B meal purchases is less than the mean number of calories in fast food chain A meal purchases.
C) We reject H0. There is not convincing evidence that the mean number of calories in fast food chain B meal purchases is less than the mean number of calories in fast food chain A meal purchases.
D) We reject H0. There is not convincing evidence that the mean number of calories in fast food chain B meal purchases is less than the mean number of calories in fast food chain A meal purchases.
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