E-PolyLearning

1. The range or set of values which have chances to contain value of population parameter with particular confidence level is considered as
a. secondary interval estimation
b. confidence interval estimate
c. population interval estimate
d. sample interval estimate
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Answer: (b).confidence interval estimate

2. The upper and lower boundaries of interval of confidence are classified as
a. error biased limits
b. marginal limits
c. estimate limits
d. confidence limits
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Answer: (d).confidence limits

3. For a parameter whose value is unknown, the belief or claim for that parameter is classified as
a. parameter claim testing
b. expected belief testing
c. hypothesis testing
d. primary limit testing
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Answer: (c).hypothesis testing

4. If the standard deviation of population 1 is 3 with sample size is 8 and the population 2 standard deviation is 5 with sample size is 7 then the standard deviation of sampling distribution is
a. 4.044
b. 3.044
c. 1.044
d. 2.044
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Answer: (c).1.044

5. Considering the sample statistic, if the mean of sampling distribution is equal to population mean then the sample statistic is classified as
a. unbiased estimator
b. biased estimator
c. interval estimator
d. hypothesis estimator
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Answer: (a).unbiased estimator

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