A lightbulb manufacturer wants to estimate the total number of defective bulbs contained in all of the

Question:

A lightbulb manufacturer wants to estimate the total number of defective bulbs contained in all of the boxes shipped by the company during the past week. Production personnel at this company have recorded the number of defective bulbs found in each of 50 randomly selected boxes shipped during the past week. These data are provided down below. Calculate a 95% confidence interval for the total number of defective bulbs contained in the 1000 boxes shipped by this company during the past week. (Round your answers to a whole number.) Calculate the lower and upper limit.

BoxNumber Defective
11
20
30
40
50
61
70
80
92
100
110
120
130
140
150
160
170
181
191
200
210
221
230
240
250
260
270
280
291
300
310
320
332
340
351
360
370
381
390
400
410
422
433
440
452
460
470
482
490
500
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Managerial Statistics

ISBN: 9780534389314

1st Edition

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

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