__________ results when a subset of the experimental units in the population is excluded from the population so that they have no chance of being selected in the sample.
A) A frame B) Selection bias
C) Measurement error D) Sampling error
Q. 2If the payoffs are quantities such as losses or costs, which we want to make small, we use the minimax
criterion.
Indicate whether the statement is true or false
Q. 3A random sample of 10 parking meters in a resort community showed the following incomes for a day. Assume the incomes are normally distributed. Find the 95 confidence interval for the true mean.
Round to the nearest cent.
3.60 4.50 2.80 6.30 2.60 5.20 6.75 4.25 8.00 3.00
A) (4.81, 6.31 ) B) (3.39, 6.01 ) C) (1.35, 2.85 ) D) (2.11, 5.34 )
Q. 4According to insurance records a car with a certain protection system will be recovered 88 of the time. Find the probability that 5 of 10 stolen cars will be recovered.
A) 0.12 B) 0.003 C) 0.500 D) 0.88
Q. 5Descriptive statistics involves making generalizations.
Indicate whether the statement is true or false
Q. 6Begging the question is involved when the sample of people is not appropriate for the study.
Indicate whether the statement is true or false
Q. 7Find the number of ways that you can randomly select three movies from a collection of 20 movies.
A) 1140 B) 20 C) 2280 D) 6840
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