In statistical work a significant difference is one that is large enough a. To b

Question

In statistical work a significant difference is one that is large enough a. To be meaningful to the experimenter b. That it would rarely be expected to occur by chance c. That chance cannot affect it d. That it leads to retention of the null hypothesis 6. 7. A random sample of n = 4 scores is obtained from a normal population with =20 and -4. what is the probability of obtaining a mean greater than M= 22 for this sample? a. .50 b. 1.00 c. .1587 d. .3085 A hypothesis test is a. A descriptive technique that allows researcher to describe a sample b. A descriptive technique that allows researcher to describe a population c. An inferential technique that uses the data from a sample to draw inferences 8. about a population d. An inferential technique that uses information about a population to make predictions about a sample. 9. The critical boundaries for a hypothesis test are ±1.96. If the Z score for the sample data is-1.90, then the correct statistical decision is a. Do not reject Hi b. Do not reject Ho c. Reject H d. Reject Ho 10. A researcher is predicting that a treatment will increase scores. If this treatment is evaluated using a one tail hypothesis test, then the critical region for the test a. Would be entirely in the right-hand tail of the distribution b. Would be entirely in the left-hand tail of the distribution . Would be divided equally between the two tails of the distribution

Explanation / Answer

Answer for the first page will be:

6. Option B is correct.

7. Option C is correct.

8. Option C is correct.

9. Optino B is correct.

10. Option A is correct.

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