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. Refer to pictures for both what to find and the lifetimes table, in hours.

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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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. Refer to pictures for both what to find and the lifetimes table, in hours.

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 too25-
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 too25- Assuming that the distribution of lifetimes is approximately normal, is the claim valid? Show your solution and explain briefly.
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