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Interstate Speeds It has been reported that the standard deviation of the speeds of drivers on Interstate 75 near Findlay, Ohio, Is 8 miles per hour for all vehicles. A driver feels from experience that this is very low. A survey is conducted, and for 30 drivers the standard deviation is 9.9 miles per hour. At a=0,05, is the driver correct? Assume the variable is normally distributed. Part 1 of 5 (a) State the hypotheses and Identify the claim with the correct hypothesis. Ho: a 8 not claim Y H₁: >8 claim Y This hypothesis test is a one-tailed Y test.

Interstate Speeds It has been reported that the standard deviation of the speeds of drivers on Interstate 75 near Findlay, Ohio, Is 8 miles per hour for all vehicles. A driver feels from experience that this is very low. A survey is conducted, and for 30 drivers the standard deviation is 9.9 miles per hour. At a=0,05, is the driver correct? Assume the variable is normally distributed. Part 1 of 5 (a) State the hypotheses and Identify the claim with the correct hypothesis. Ho: a 8 not claim Y H₁: >8 claim Y This hypothesis test is a one-tailed Y test.

Calculus For The Life Sciences
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.3: Special Probability Density Functions
Problem 40E: Pygmy Height The average height of a member of a certain tribe of pygmies is 3.2ft, with a standard...
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Interstate Speeds It has been reported that the standard deviation of the speeds of drivers on Interstate 75 near Findlay, Ohio, Is 8 miles per hour for all vehicles. A driver feels from experience that this is very low. A survey is conducted, and for 30 drivers the standard deviation is 9.9 miles per hour. At a=0,05, is the driver correct? Assume the variable is normally distributed. Part 1 of 5 (a) State the hypotheses and Identify the claim with the correct hypothesis. Ho: a 8 not claim Y H₁: >8 claim Y This hypothesis test is a one-tailed Y test.
Transcribed Image Text:Interstate Speeds It has been reported that the standard deviation of the speeds of drivers on Interstate 75 near Findlay, Ohio, Is 8 miles per hour for all vehicles. A driver feels from experience that this is very low. A survey is conducted, and for 30 drivers the standard deviation is 9.9 miles per hour. At a=0,05, is the driver correct? Assume the variable is normally distributed. Part 1 of 5 (a) State the hypotheses and Identify the claim with the correct hypothesis. Ho: a 8 not claim Y H₁: >8 claim Y This hypothesis test is a one-tailed Y test.
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