Question 1 (1 point) You are interested in whether the average lifetime of Durac

Question

Question 1 (1 point) You are interested in whether the average lifetime of Duracell AAA batteries is different from the average lifetime of Energizer AAA batteries. You lay out your hypotheses as follows: Null Hypothesis: 1-u2, Alternative Hypothesis: ' 2. After running a two independent samples t-test, you see a p-value of 0.2756. What is the appropriate conclusion? 1) We did not find enough evidence to say the average lifetime of Duracell AAA batteries is less than the average lifetime of Energizer AAA batteries. 2) The average lifetime of Duracell AAA batteries is significantly different from the average lifetime of Energizer AAA batteries. We did not find enough evidence to say a significant difference exists between the average lifetime of Duracell AAA batteries and the average lifetime of Energizer AAA batteries. 4) The average lifetime of Duracell AAA batteries is equal to the average lifetime of Energizer AAA batteries. 5) We did not find enough evidence to say the average lifetime of Duracell AAA batteries is greater than the average lifetime of Energizer AAA batteries.

Explanation / Answer

Solution1:

Its a two tail test

alpha=0.05

p=0.2756

p>0.05

Fail to reject null hypothesis

Accept Null hypothesis

OPTION 3

We did not enough evidence to say a signiificant difference exists

Solution2:

two tatl test

p=0.5522

p>alpha

p>0.05

Fail to reject Null hypothesis

Accept alternative hypothesis

No evidence for difference in means

OPTION2

Solution3:

less tahn word used

its a left tail test

Ho: no difference in means

H0: 1>= ;2

H1: 1< 2

OPTION4

solution4:

greater than used

so right tail test

H0: 1<= ;2

H1: 1> 2

OPTION3

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