
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Transcribed Image Text:The accuracy of a coln-counter machine is gauged to accept nickels with a mean diameter of
millimeters 21.21 mm. A sample of 41 nickles was drawn from a reported defective coln-counter
machine located near a school. The sample had a sample mean of 21.211 mm and sample standard
devlation 0.011 mm.
Test the claim that the mean nickel diameter accepted by this coin-counter machine is greater than
21.21 mm. Test at the 0.01 significance level.
(a) Identify the correct alternative hypothesis H.:
Ομ< 21.21
Oµ > 21.21
Ομ21.21
Give all answers correct to 4 decimat places.
(b) The test statistic value is:
(C) Using the Traditional method, the critical value is(round to 2 decimal places) :
(d) Based on your answers above, do you:
Reject Hn
OFail to reject Họ
(e) Explain your choice in the box below.
SAMSUNG

Transcribed Image Text:(d) Based on your answers above, do
you:
O Reject Ho
O Fail to reject Ho
(e) Explain your choice in the box below.
() Based on your work above, choose one of the following conclusions of your test:
There is not sufficient evidence to warrant rejection of the claim
O There is not sufficient evidence to support the claim
O There is sufficient evidence to warrant rejection of the claim
O The sample data supports the claim
(g) Explain your choice in the box below.
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