Not yet checked 4 of 4 questions have not yet been compared with the official paper.
Q. 1
(a)Define sampling and non-sampling errors and how we can control these errors?
(b)A random sample of size n = 100 is taken from a population having a mean of 20 and a standard deviation of 5. The shape of the population distribution is unknown. i) What can you say about the sampling distribution of the sample mean X?
(c)A population consists N = 6 elements 0, 3, 4, 6, 9 and 15.
Not yet checked
(20)
Q. 2
(a)Explain the desirable properties of a good point estimator.
(b)In order to ascertain the age distribution of operatives in a certain industry, random samples of 1720 males and 1230 females are drawn.
(c)In a random sample of 1000 homes in a certain city, it is found that 628 have the phone connections.
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(20)
Q. 3
(a)The manufacturer of a patent medicine claimed that it was 90% effective in relieving an allergy for a period of 8 hours.
(b)The weights of 4 persons before they stopped smoking and 5 weeks after they stopped smoking are as follows:
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(20)
Q. 6
(a)Compute the consumer price index number for the following data for 2018 with 2017 as base.
(b)The following table gives the numbers of deep freezers sold by a certain company:
The 2019 PMS Punjab Statistics paper set by the PPSC. Question wording only; questions marked “Not yet checked” have not been compared with the official paper yet.
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