Exam 7: Sampling and Sampling Distributions
Exam 1: Data and Statistics72 Questions
Exam 2: Descriptive Statistics: Tabulargraphical76 Questions
Exam 3: Descriptive Statistics: Numerical154 Questions
Exam 4: Introduction to Probability93 Questions
Exam 5: Discrete Probability Distributions81 Questions
Exam 6: Continuous Probability Distributions114 Questions
Exam 7: Sampling and Sampling Distributions103 Questions
Exam 8: Interval Estimation78 Questions
Exam 9: Hypothesis Tests94 Questions
Exam 10: Inference About Means and Proportions With Two Populations61 Questions
Exam 11: Inferences About Population Variances60 Questions
Exam 12: Comparing Multiple Proportions, Test of Independence and Goodness of Fit45 Questions
Exam 13: Experimental Design and Analysis of Variance67 Questions
Exam 14: Simple Linear Regression119 Questions
Exam 15: Multiple Regression113 Questions
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A population has a standard deviation of 16.If a sample of size 64 is selected from this population, what is the probability that the sample mean will be within ±2 of the population mean?
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The standard error of the proportion will become larger as
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Whenever the population has a normal probability distribution, the sampling distribution of is a normal probability distribution for
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A population has a mean of 53 and a standard deviation of 21.A sample of 49 observations will be taken.The probability that the sample mean will be greater than 57.95 is
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The probability distribution of all possible values of the sample proportion is the
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The following information was collected from a simple random sample of a population. 16 19 18 17 20 18 The point estimate of the population standard deviation is
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Random samples of size 100 are taken from an infinite population whose population proportion is 0.2.The mean and standard deviation of the sample proportion are
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In computing the standard error of the mean, the finite population correction factor is used when
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When the population has a normal distribution, the sampling distribution of is normally distributed?
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The population being studied is usually considered ______ if it involves an ongoing process that makes listing or counting every element in the population impossible.
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A simple random sample of 144 observations was taken from a large population.The sample mean and the standard deviation were determined to be 1234 and 120 respectively.The standard error of the mean is
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How many simple random samples of size 5 can be selected from a population of size 8?
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A sample of 25 observations is taken from an infinite population.The sampling distribution of is
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From a population of 200 elements, a sample of 49 elements is selected.It is determined that the sample mean is 56 and the sample standard deviation is 14.The standard error of the mean is
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