. Which of the following is the correct Null hypothesis for the appropriate statistical test for the sleep example?

Group of answer choices

H₀: ?_? = 0

H₀: ?₁ - ?₂ = 0

H₀: ? = 0

H₀: ?_? ? 0

Flag question: Question 3

Question 3 1 pts

Which of the following is the correct Alternate hypothesis for the appropriate statistical test for the sleep example?

Group of answer choices

H_A:?_?= 0

H_A:?₁-?₂? 0

H_A:? ? 0

H_A:?_??0

Flag question: Question 4

Question 4 1 pts

What the is mean sleep change for drug A? (Answer correct to 2 decimal places)

Flag question: Question 5

Question 5 1 pts

What the is mean sleep change for drug B? (Answer correct to 2 decimal places)

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Question 6 1 pts

Calculate the appropriate test statistic t for the sleep example (report the absolute value for 3 decimal places)

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Question 7 1 pts

Calculate the critical value for the rejection regions (report the absolute value for 3 decimal places)

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Question 8 1 pts

What was the p-value for the appropriate statistical test?

Group of answer choices

p= 1

p= .09

p

p= 0.48

Flag question: Question 9

Question 9 1 pts

What was the sample's mean difference between drug A and B? (report the absolute value to 2 decimal places)

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Question 10 1 pts

Assuming the mean difference was calculated as Drug A - Drug B, what was the sample's lower bound of the 95% CI of the mean difference between drug A and B? (Answer correct to 2 decimal places)

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Question 11 1 pts

What was the sample's upper bound of the 95% CI of the mean difference between drug A and B? (Answer correct to 2 decimal places)

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Question 12 1 pts

What significance level should be set for this hypothesis test?

Group of answer choices

? = 0.01

? = 0.05

? = 1

? = 0.95

Flag question: Question 13

Question 13 1 pts

State the correct decision from the hypothesis test.

Group of answer choices

As the test statistic t is more extreme than the critical value, the p-value is less than the significance level and the 95% CI fails to capture the Null hypothesised value, the decision must be made to REJECT the Null hypothesis.

As the test statistic t is more extreme than the critical value, the p-value is less than the significance level and the 95% CI fails to capture the Null hypothesised value, the decision must be made to FAIL TO REJECT the Null hypothesis.

As the test statistic t is no more extreme than the critical value, the p-value is greater than the significance level and the 95% CI captures the Null hypothesised value, the decision must be made to FAIL TO REJECT the Null hypothesis.

As the test statistic t is no more extreme than the critical value, the p-value is greater than the significance level and the 95% CI captures the Null hypothesised value, the decision must be made to REJECT the Null hypothesis.

Flag question: Question 14

Question 14 1 pts

State the correct conclusion.

Group of answer choices

The results of the analysis found statistically significant evidence of a mean difference between sleep change for Drug A and B. The results suggest that Drug B led to significantly higher average sleep duration when compared to Drug A.

The analysis proved that Drug B is superior to Drug A

There is no difference between Drug A and B.

The results of the analysis found no statistically significant evidence of a mean difference between sleep change for Drug A and B.