Mathematics

Mathematics, 18.07.2019 10:00, mshepherdmiller

Samples of size n = 125 are randomly selected from the u. s. census data, and the median children per household is found for each sample. what is the distribution of the sample medians? not enough information providedskewed to the leftskewed to the rightnormal (approximately)

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Mathematics, 30.06.2019 01:00, lizdominguez101

Three randomly selected households are surveyed. the numbers of people in the households are 2,4,9assume that samples of sizenequals=2are randomly selected with replacement from the population of 2,3,9listed below are the nine different samples. complete parts (a) through (c).2,2 2,4 2,9 4,2 4,4 4,9 9,2 9,4 9,9a. find the median of each of the nine samples, then summarize the sampling distribution of the medians in the format of a table representing the probability distribution of the distinct median values.sample median probabillityb. compare the population median to the mean of the sample medians.c. do the sample medians target the value of the population median? in general, do sample medians make good estimators of population medians? why or why not?

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Mathematics, 16.09.2019 05:30, austinpace423

40 points [statistics] distributions of sample ranges, means, and medians. 1. samples of size n = 150 are randomly selected from the u.s. census data, and the income range is found for each sample. what is the distribution of the sample ranges? skewed to the right normal (approximately) skewed to the left not enough information provided 2. samples of size n = 60 are randomly selected from the population of numbers (0 through 9) produced by a random-number generator, and the mean is taken for each sample. what is the distribution of the sample means? normal (approximately) not enough information provided skewed to the right skewed to the left 3. samples of size n = 250 are randomly selected from the u.s. census data, and the median income is found for each sample. what is the distribution of the sample medians? normal (approximately) not enough information provided skewed to the left skewed to the right

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Mathematics, 21.10.2019 13:20, brucewayne8499

Assume a population of 48, 49, 51 and 56. assume that samples of size na 2 are randomly selected with replacement from the population. listed below are the sixteen different samples. complete parts (a) through (e) 45.49 45.51 45,56 49,45 49,51 49,56 51,45 51,49 51,51 51,56 56,45 56,49 56,51 56,56 49,49 out id a. find the median of each of the sixteen samples, then summarize the sampling distribution of the medians in the format of a table representing the probability distribution of the distinct median vakies. use ascending order of the sample medians. sample median p robability sample median probability

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Mathematics, 31.10.2019 03:31, markuswalter1043

Three randomly selected households are surveyed. the numbers of people in the household are 3,4,11. assume that samples of size n=2 are randomly selected with replacement form the population of 3,4,11. listed below are the nine different samples. complete parts (a) through (c). 3, 3 3, 4 3, 11 4,3 4,4 4, 11 11, 3 11, 4 11, 11 (a) find the median of the nine samples, then summarize the sampling distribution of the median in the format of a table representing the probability distribution of the distinct median values. (b) compare the population median to the mean of the sample medians. (c) do the sample medians target the value of the population median? in general, do sample medians make good estimators of population medians? why or why not?

Answers: 2

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