Transcription of AP Statistics: Unit – 5 - Sampling Distributions Practice Test
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AP Statistics: Unit – 5 - Sampling Distributions Practice Test
AP Statistics: Unit 5 - Sampling Distributions Practice TestQuestion 1 Let us suppose we have population data where the data are distributed distribution increasingly approximates the sample mean as the samplesize increases to infinity? 2A researcher wants to determine whether there is a significant linear relationshipbetween time spent meditating and time spent studying. What is the appropriatenull hypothesis for this study?A. 1 < 1B. 1 = 5C. 1 = 0D. 1 0E. 1 > 0 Question 3 What is the standard deviation of each (and every) sample mean? 4 The purpose of the t test is to do which of the following? the means of separate the significance of multiple the variance within a the ability of one variable to predict the relationship between five or more 5Y follows a chi-squared distribution with 6 degrees of freedom and X1 through Xnare independent standard normal , what is n? 6 The mean and standard deviation of a population are 200 and 20, size is 25.
Question 7 A statistic is an unbiased estimator of a parameter when… A.the statistic is calculated from a random sample. B.in many samples, the values of the statistic are very close to the value of the parameter. C. in a single sample, the value of the statistic is equal to the value of the parameter D.in many samples, the values of the statistic are centered at the value of the
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