STA301 Quiz File Aug 2021 by Rajpoot

STA301 August 2021 Quiz File

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Q1. β is the probability of

1. Reject HO/HO is true
2. Reject HO/HO is false
3. Accept HO/HO is false

(Correct)

D) Accept HO/HO is true

Q2. An estimator is said to be efficient if it has

1. Lower limits
2. Bounded its
3. Lower and upper limits

(Correct)

D) Upper limits

Q5. An estimator is said ______ to be is expected value is equal to true value of its parameter.

1. Efficient
2. Consistant
3. Based
4. Unbiased (Correct)

Q6. The width of the confidence interval is called ________ of the estimate.

1. Sample values
2. Random numbers
3. Correlation coefficient
4. Point estimates

(Correct)

Q9. The precision of an estimator can be increased by increasing the

1. Size of sample

(Correct) · B) Number of estimators · C) Size of population · D) Number of parameters