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A leasing firm claims that the mean number of miles driven annually, μ, in its leased cars is less than 13,700 miles. A random sample of 70 firm had a mean of 13,689 annual miles driven. It is known that the population standard deviation of the number of miles driven in cars fro miles. Is there support for the firm's claim at the 0.05 level of significance? Perform a one-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places, and round your responses as specified below. (If necessary, consult (a) State the null hypothesis and the alternative hypothesis ₁. Ho H₂O (b) Determine the type of test statistic to use. (Choose one) H |x a S Р

A leasing firm claims that the mean number of miles driven annually, μ, in its leased cars is less than 13,700 miles. A random sample of 70 firm had a mean of 13,689 annual miles driven. It is known that the population standard deviation of the number of miles driven in cars fro miles. Is there support for the firm's claim at the 0.05 level of significance? Perform a one-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places, and round your responses as specified below. (If necessary, consult (a) State the null hypothesis and the alternative hypothesis ₁. Ho H₂O (b) Determine the type of test statistic to use. (Choose one) H |x a S Р

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A leasing firm claims that the mean number of miles driven annually, μ, in its leased cars is less than 13,700 miles. A random sample of 70 cars leased from this firm had a mean of 13,689 annual miles driven. It is known that the population standard deviation of the number of miles driven in cars from this firm is 1420 miles. Is there support for the firm's claim at the 0.05 level of significance? Perform a one-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places, and round your responses as specified below. (If necessary, consult a list of formulas.) (a) State the null hypothesis and the alternative hypothesis H. Ho H₁:0 (b) Determine the type of test statistic to use. (Choose one) ▼ (c) Find the value of the test statistic. (Round to three or more decimal places.) (d) Find the critical value. (Round to three or more decimal places.) 0 (e) Can we support the leasing firm's claim that the mean number of miles driven annually is less than 13,700 miles? O Yes O No H X 0=0 a X S OSO O#O ロ<ロ Р <Q 00 ロマロ Ś O>O
Transcribed Image Text:A leasing firm claims that the mean number of miles driven annually, μ, in its leased cars is less than 13,700 miles. A random sample of 70 cars leased from this firm had a mean of 13,689 annual miles driven. It is known that the population standard deviation of the number of miles driven in cars from this firm is 1420 miles. Is there support for the firm's claim at the 0.05 level of significance? Perform a one-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places, and round your responses as specified below. (If necessary, consult a list of formulas.) (a) State the null hypothesis and the alternative hypothesis H. Ho H₁:0 (b) Determine the type of test statistic to use. (Choose one) ▼ (c) Find the value of the test statistic. (Round to three or more decimal places.) (d) Find the critical value. (Round to three or more decimal places.) 0 (e) Can we support the leasing firm's claim that the mean number of miles driven annually is less than 13,700 miles? O Yes O No H X 0=0 a X S OSO O#O ロ<ロ Р <Q 00 ロマロ Ś O>O
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