Statistics Week 5
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or the statement below, write the claim as a mathematical statement. State the null and alternative hypotheses and identify which represents the claim. The standard deviation of the base price of a certain type of all-terrain vehicle is equal to $305.
russellc, , Statistics, 0
Part A is just stating the the claim numberically with is u =305. Part B = Ho is the...
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A nutritionist claims that the mean tuna consumption by a person is 3.9 pounds per year. A sample of 60 people shows that the mean tuna consumption by a person is 3.5 pounds per year. Assume the population standard deviation is 1.11 pounds. At alpha equals 0.1, can you reject the claim?
russellc, , Statistics, 0
see excel spreadsheet. This your answer
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A credit card company claims that the mean credit card debt for individuals is greater than $ 5000. You want to test this claim. You find that a random sample of 30 cardholders has a mean credit card balance of $ 5202 and a standard deviation of $ 600. At alpha equals 0.01, can you support the claim? Complete parts (a) through (e) below. Assume the population is normally distributed.
russellc, , Statistics, 0
see excel spreadsheet. This your answer
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Find the margin of error for the given values of c, sigma, and n.
russellc, , Statistics, 0
c = 0.95. a = 2.1, n = 36 Answer 0.686
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