An aircraft manufacturer needs to buy aluminum sheets with an average thickness of 0.05 inch. The manufacturer

Question:

An aircraft manufacturer needs to buy aluminum sheets with an average thickness of 0.05 inch. The manufacturer knows that significantly thinner sheets would be unsafe and considerably thicker sheets would be too heavy. A random sample of 100 sheets from a potential supplier is collected.

a. Use the p-value approach to determine if the aircraft manufacturer should buy aluminum sheets from the supplier.

b. For which values of the sample mean would the aircraft manufacturer decide to buy sheets from this supplier, assuming α = 0.05?

Please, show your work.

SheetThickness
10.0403
20.0693
30.0632
40.0651
50.0534
60.0574
70.0400
80.0515
90.0542
100.0555
110.0512
120.0525
130.0434
140.0392
150.0607
160.0575
170.0637
180.0358
190.0455
200.0319
210.0578
220.0488
230.0402
240.0318
250.0447
260.0306
270.0325
280.0542
290.0416
300.0517
310.0448
320.0520
330.0495
340.0525
350.0618
360.0571
370.0391
380.0655
390.0568
400.0370
410.0505
420.0425
430.0611
440.0491
450.0574
460.0603
470.0420
480.0616
490.0463
500.0340
510.0609
520.0457
530.0409
540.0367
550.0713
560.0576
570.0515
580.0549
590.0325
600.0470
610.0203
620.0379
630.0442
640.0384
650.0409
660.0358
670.0442
680.0538
690.0486
700.0317
710.0529
720.0449
730.0437
740.0384
750.0400
760.0397
770.0486
780.0296
790.0548
800.0407
810.0552
820.0412
830.0425
840.0371
850.0590
860.0398
870.0600
880.0589
890.0496
900.0509
910.0427
920.0481
930.0512
940.0504
950.0467
960.0253
970.0195
980.0471
990.0464
1000.0529
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Related Book For  book-img-for-question

Managerial Statistics

ISBN: 9780534389314

1st Edition

Authors: S. Christian Albright, Wayne L. Winston, Christopher Zappe

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