GATE XH-C5 topic:5-statistics-psychology PYQs & Answers

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topic:5-statistics-psychology

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Questions 1–10 of 20. Imported answers require independent review unless marked reviewed.

Topic practice 20 questionsPage 1 of 2

Find the value of Standard Error when: (i) Standard Deviation of the population = 10 (ii) Sample size = 100

Your answerChoose one option.

10.01

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Calculate the value of Standard Deviation using the following scores:

Scores: 15, 12, 14, 11, 13

Your answerChoose one option.

1.01

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Match the following:

P — Standard error of estimate i — Score range from one through nine. Q — Statistical significance ii — Standard error of differences between predicted values and true values of a measure. R — Stanine score iii — The probability that the population mean falls within the limits determined from a sample. S — Standard deviation iv — Root mean square deviation

Your answerChoose one option.

P-i, Q-iii, R-ii, S-iv

P-ii, Q-iii, R-i, S-iv

P-ii, Q-iii, R-iv, S-i

P-iii, Q-i, R-ii, S-iv

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Consider the following Null-Hypothesis: “The mean of Treatment Group is not different from that of the Control Group”. When this is not accepted, which of the following is/are true?

Your answerSelect all correct options. You can choose more than one.

The probability of wrong rejection of the Null-Hypothesis is still there, but relatively very low.

Wrong rejection of the Null-Hypothesis is absolute not possible.

Level of significance (α) must be less than or equal to 0.05.

Level of significance (α) may be greater than or equal to 0.01.

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According to Central Limit Theorem, for a fixed sample size:

Your answerSelect all correct options. You can choose more than one.

Sample means may or may not be normally distributed.

Both Type-I and Type-II errors must be low.

Relative frequency of sample means that are closer to the population mean is higher.

Relative frequency of the sample means that are farther from the population mean is lower.

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If the data distribution is skewed to the left, it means:

Your answerChoose one option.

More scores have low values than have high values

Fewer scores have low values than have high values

Fewer scores have high values than have low values

More scores have high values than have low values

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If a court acquits the criminal for lack of evidence and sentences the victim for 2 years of rigorous imprisonment in a case, it is an example of:

Your answerChoose one option.

Type I error only

Type II error only

Type I and Type II error, respectively

Type II and Type I error, respectively

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Percentage of scores between the mean and ± 1 standard deviation in a normal distribution is close to

Your answerChoose one option.

68%

34%

95%

99%

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Which of the following is/are distribution free test(s)?

Your answerSelect all correct options. You can choose more than one.

Pearson correlation

Spearman’s rho

Kruskal-Wallis H test

Analysis of variance

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Which of the following is/are measure(s) of dispersion?

Your answerSelect all correct options. You can choose more than one.

Variance

ANOVA

Correlation

Range

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GATE XH-C5 topic:5-statistics-psychology PYQs

How to practice topic:5-statistics-psychology

Question 43

Question 44

Question 50

Question 54

Question 56

Question 30

Question 32

Question 36

Question 49

Question 54