An experiment is investigating the effects of two drugs on the activity of rats. Drug A is a depressant and drug B is a stimulant. 20 rats are randomly assigned to receive one of the two drugs. Their activity level is observed for a fixed period of time, yielding the following results: Drug A: 8 9 11 14 10 9 12 6 10 11 Drug B: 14 12 11 11 12 12 11 14 9 16 Compute the appropriate statistic to determine whether the type of drug administered affects the rats’ activity level. Use this information to complete the following: Q1. showed that rats given the stimulant (Drug B) were Q2. active than those given the depressant (Drug A), Q3.= Q4., Q5.. Therefore, we Q6.. Possible answers for Q1: A) A repeated measures t-test B) An independent groups t-test C) A single sample t-test D) A single sample z-test Possible answers for Q2: A) significantly less B) significantly more C) similarly D) cannot be calculated Possible answers for Q3: A) t (8) B) t (18) C) t (9) D) t (19) Possible answers for Q4: A) 0.94 B) -0.50 C) -2.34 D) -2.49 Possible answers for Q5: A) p = .05 B) p < .05 C) p > .05 D) ns Possible answers for Q6: A) retain the null hypothesis B) reject the null hypothesis C) retain the alternative hypothesis D) reject the alternative hypothesi
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An experiment is investigating the effects of two drugs on the activity of rats. Drug A is a depressant and drug B is a stimulant. 20 rats are randomly assigned to receive one of the two drugs. Their activity level is observed for a fixed period of time, yielding the following results:
Drug A: 8 9 11 14 10 9 12 6 10 11
Drug B: 14 12 11 11 12 12 11 14 9 16Compute the appropriate statistic to determine whether the type of drug administered affects the rats’ activity level. Use this information to complete the following:
Q1. showed that rats given the stimulant (Drug B) were Q2. active than those given the depressant (Drug A), Q3.= Q4., Q5..
Therefore, we Q6..
Possible answers for Q1:
A) A repeated measures t-test
B) An independent groups t-test
C) A single sample t-test
D) A single sample z-testPossible answers for Q2:
A) significantly less
B) significantly more
C) similarly
D) cannot be calculatedPossible answers for Q3:
A) t (8)
B) t (18)
C) t (9)
D) t (19)Possible answers for Q4:
A) 0.94
B) -0.50
C) -2.34
D) -2.49Possible answers for Q5:
A) p = .05
B) p < .05
C) p > .05
D) nsPossible answers for Q6:
A) retain the null hypothesis
B) reject the null hypothesis
C) retain the alternative hypothesis
D) reject the alternative hypothesis
Given data:
| Drug A | Drug B |
| 8 | 14 |
| 9 | 12 |
| 11 | 11 |
| 14 | 11 |
| 10 | 12 |
| 9 | 12 |
| 12 | 11 |
| 6 | 14 |
| 10 | 9 |
| 11 | 16 |
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