Suppose the coffee industry claimed that the average adult drinks1.7 cups of cof
ID: 3300933 • Letter: S
Question
Suppose the coffee industry claimed that the average adult drinks1.7 cups of coffee per day. To test this claim, a random sample of40adults was selected, and their average coffee consumption was found to be1.95 cups per day. Assume the standard deviation of daily coffee consumption per day is0.6 cups. Usingalphaequals=0.05 complete parts a and b below.
a. Is the coffee industry's claim supported by this sample?
Determine the null and alternative hypotheses.
Upper H 0H0:
mu
less than<
not equals
less than or equals
greater than>
equals=
greater than or equals
nothing
Upper H 1H1:
mu
less than or equals
greater than or equals
equals=
greater than>
not equals
less than<
nothing
Explanation / Answer
a) null hypothesis :Upper H0: : equals= 1.70
alternate hypothesis: Upper H 1H1: : not equals 1.70
b) please revert for part b as it is not mentioned here
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