The company's claim is considered valid if the computed t-value is between -to.025 and to.025- Assuming that the distribution of lifetimes is approximately normal, is the claim valid? Show your solution and explain briefly.

College Algebra
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Author:Ron Larson
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Chapter8: Sequences, Series,and Probability
Section8.6: Counting Principles
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A manufacturing company claims that the average lifetime of their incandescent lamps is 1300 hours. A random sample of 16 lamps are tested, and their lifetimes, in hours, are shown below:

1308
1308
1289
1294
1303
1305
1313
1300
1298
1315
1302
1304
1296
1324
1301
1302
Transcribed Image Text:1308 1308 1289 1294 1303 1305 1313 1300 1298 1315 1302 1304 1296 1324 1301 1302
The company's claim is considered valid if the computed t-value is between -to.025 and to.025-
Assuming that the distribution of lifetimes is approximately normal, is the claim valid? Show
your solution and explain briefly.
Transcribed Image Text:The company's claim is considered valid if the computed t-value is between -to.025 and to.025- Assuming that the distribution of lifetimes is approximately normal, is the claim valid? Show your solution and explain briefly.
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