Which of the following is not necessary to determine how large a sample to select from a population?
A) The level of confidence in estimating the population parameter
B) The size of the population
C) The maximum allowable error in estimating the population parameter
D) An estimate of the population variation
Correct Answer:
Verified
Q20: The 95% confidence interval states that 95%
Q21: Which statement(s)is(are)correct about the t-distribution?
A)The mean is
Q22: When a confidence interval for a population
Q23: A sample mean is the best point
Q24: The distribution of Student's t is _.
A)symmetrical
B)negatively
Q26: Suppose 1,600 of 2,000 registered voters sampled
Q27: What kind of distribution is the t-distribution?
A)Continuous
B)Discrete
C)Subjective
D)A
Q28: Of the following characteristics,the t-distribution and z-distribution
Q29: What is the interpretation of a 96%
Q30: A confidence interval for a population mean
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