The lengths of time (in years) it took a random sample of 32 former smokers to q

Question

The lengths of time (in years) it took a random sample of 32 former smokers to quit smoking permanently are listed. Assume the population standard deviation is 4.6 years. At alpha = 0.03, is there enough evidence to reject the claim that the mean time it takes smokers to quit smoking permanently is 14 years? Complete parts (a) through (e). 16.1 11.7 13.9 21.2 15.9 17.1 7.6 19.4 10.4 7.8 16.8 14.2 16.7 11.1 17.2 12.2 20.1 7.5 20.7 21.4 21.5 17.8 11.1 9.5 13.9 11.4 15.5 14.9 13.5 20.2 20.3 13.4 Identify the claim and state the null hypothesis and alternative hypothesis. H_0: mu lessthanorequalto 14 (claim) H_a: mu > 14 H_0: mu > 14 (claim) H_a: mu lessthanorequalto 14 H_0: mu greaterthanorequalto 14 (claim) H_a:mu 14 H_a: mu lessthanorequalto 14(claim)

Explanation / Answer

claim:

mean time it takes smokers to quit smoking is =14 yrs

Null hypothesis:

Ho: mean=14(claim)

Alternative hypothesis:

H1:mean not equal to 14

its a two tail t test

FROM GIVEN CHOICES ANSWER E

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