|(a) State the null hypothesis H, and the alternative hypothesis H,. H, 0 H, 0 (b) Determine the type of test statistic to use. (Choose one) y |(c) Find the value of the test statistic. (Round to three or more decimal places.) |(1) Find the p-value. (Round to three or more decimal places.) |(e) Can we support the leasing firm's claim that the mean number of miles driven annually is less than 12,300 miles? O es ONo

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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A leasing firm claims that the mean number of
miles driven annually, u, in its leased cars is less
than 12,300 miles. A random sample of 34 cars leased
from this firm had a mean of
11,826 annual miles
driven. It is known that the population standard
deviation of the number of miles driven in cars
from this firm is 1080 miles. Assume that the
population is normally distributed. Is there
support for the firm's claim at the 0.01 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 H, and the alternative hypothesis H,.
H, :0
H :0
(b) Determine the type of test statistic to use
(Choose one) v
O=0
OSO
(c) Find the value of the test statistic. (Round to three or more decimal places.)
(d) Find the p-value. (Round to three or more decimal places.)
(e) Can we support the leasing firm's claim that the mean number of miles driven annually is
less than 12,300 miles?
OYes ONo
olo
Transcribed Image Text:A leasing firm claims that the mean number of miles driven annually, u, in its leased cars is less than 12,300 miles. A random sample of 34 cars leased from this firm had a mean of 11,826 annual miles driven. It is known that the population standard deviation of the number of miles driven in cars from this firm is 1080 miles. Assume that the population is normally distributed. Is there support for the firm's claim at the 0.01 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 H, and the alternative hypothesis H,. H, :0 H :0 (b) Determine the type of test statistic to use (Choose one) v O=0 OSO (c) Find the value of the test statistic. (Round to three or more decimal places.) (d) Find the p-value. (Round to three or more decimal places.) (e) Can we support the leasing firm's claim that the mean number of miles driven annually is less than 12,300 miles? OYes ONo olo
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