12th class Statistics chapter 12 online mcq test with answers for ICS part 2 Statistics chapter 12 (Estimation)

ICS Part 2 Statistics Chapter 12 Online Test

Sr. #	Questions	Answers Choice
1	If population proportion (P) is unknown, the standard error of the sample proportion (p) can be estimated by the formula
2	Types of statistical inferences are	one two three four
3	Confidence intervals which are often used in practice are	90% 95% 98% all of these
4	100(1-α)% confidence interval for population proportion of success,&=nbsp;π is	P (L <μ < U) = 1 - α P (L <σ < U) = 1 - α P (L <π< U) = 1 - α P (L <P&=nbsp;< U) = 1 - α
5	An estimator is ------------ if its expected value is equal to the population parameter to be estimated	bad biased unbiased none of these
6	If the observations are paired and the number of pairs is n, then the number of degree of freedom is equal to	n n - 1 2n 2n - 1
7	A range of values used to estimate an unknown population parameter is	a point estimator An interval estimator an unbiased estimator A biased estimator
8	If mean of the sampling distribution is equal to the parameter then the estimator will be	biased consistent sufficient unbiased
9	The standard error of the estimate increased by decreasing	population sample size errors precision
10	Small sample has less than	50 values 45 values 30 values 35 values
11	The difference of upper and lower limits of confidence interval measures the	level of significance level of confidence interval precision
12	Level of significance is denoted by	2 - α 3 - α α 1 - α
13	Large sample contains more than	5 values 10 values 20 values 30 values
14	The precision can be increased by ---------------- the sample size	increasing decreasing changing ignoring
15	A specific value of an estimator computed from the sample data is called	estimation estimate interval estimate point estimate

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