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  3. the following dataset contains a random sample of

The following dataset contains a random sample of lifetime of 120 BMW Xenon headlight bulbs. The...

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Question

Statistics

The following dataset contains a random sample of lifetime of120 BMW Xenon headlight bulbs. The manufacturer of these bulbswants to know whether it can claim that the bulbs last more than1000 hours. Use a=0.01

931053.74
941032.37
951003.42
96908.74
971037.92
981096.83
991169.07
100842.85
1011038.22
102973.30
103996.08
104984.70
105989.44
1061023.07
1071047.95
1081073.63
1091021.51
110977.27
111928.44
112910.28
113990.68
1141043.82
1151038.36
1161023.51
1171026.85
118987.21
1191053.35
1201077.91

a)Formulate the hypotheses.

b)What is the value of the test statistic?

c)What are the critical values of the test?

d)Find the p-value of the test.

e)What is your conclusion? Explain it in the context of theproblem.

Answer & Explanation Solved by verified expert
4.3 Ratings (824 Votes)
a The hypothesis of the testH0 Mean time of the bulb last will not be greater than 1000HoursH1 Mean time of the bulb    See Answer
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