Systematic sampling is the random selection of an infinite number of samples from a population. ...

Systematic sampling is the random selection of an infinite number of samples from a population.

Indicate whether the statement is true or false

Q. 2

Based on the given information, the p-value for the F test of equal variances can be calculated and shown to be 0.289. Based on this p-value, what is your conclusion?

A) The assumption of equal variances is correct.
B) The assumption of equal variances is incorrect.
C) The answer cannot be determined based on this p-value.
D) The variance of the first sample is greater than the other.

Q. 3

What is the probability that at least 210 of them will buy something from your firm? Use the normal approximation to the binomial.

A) 0.7549
B) 0.2549
C) 0.2451
D) 0.7451

Q. 4

Given a Poisson random variable X, where the average number of times an event occurs in a certain period of time is 2.5, then P(X = 0 ) is:

A) 2.5
B) 0.0821
C) 1.5811
D) 0.40

Q. 5

The 95 confidence interval for the population proportion P, given a sample size n = 2200 and sample proportion = 0.214 is computed as:

A) 0.214 0.017
B) 0.214 0.048
C) 0.214 0.069
D) 0.214 0.086

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Systematic sampling is the random selection of an infinite number of samples from a population. ...

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