points 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: The company’s claim is considered valid if the computed t-value is between −t_0.025 and t_0.025   Assuming that the distribution of lifetimes is approximately normal, is the claim valid? Show  your solution and explain briefly

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points 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:

The company’s claim is considered valid if the computed t-value is between −t_0.025 and t_0.025  
Assuming that the distribution of lifetimes is approximately normal, is the claim valid? Show 
your solution and explain briefly.

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
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