Question: This is a Chapter 7 problem. Given the following information: a machine operation has a standard deviation of 4.23 minutes per piece and management has

This is a Chapter 7 problem. Given the following information: a machine operation has a standard deviation of 4.23 minutes per piece and management has a goal to estimate the mean time per piece to within.26 minutes at a confidence level of 96.52 percent. Question: If management wants to determine how many observations will be required to validate the mean time per piece with the 96.52% level of confidence what is the z value from your Appendices B table A page 867? Record your answer to 2 decimal places. Hint: refer to your Chapter 7 quiz problem #1 to guide you. Your z number is the one that would be used with the equation A. Sample size (used for time accuracy]n = (zs/e)2 Table 7.7 page 317 This is a Chapter 7 problem. Given the following information: a machine operation has a standard deviation of 4.23 minutes per piece and management has a goal to estimate the mean time per piece to within.26 minutes at a confidence level of 96.52 percent. Question: If management wants to determine how many observations will be required to validate the mean time per piece with the 96.52% level of confidence what is the z value from your Appendices B table A page 867? Record your answer to 2 decimal places. Hint: refer to your Chapter 7 quiz problem #1 to guide you. Your z number is the one that would be used with the equation A. Sample size (used for time accuracy]n = (zs/e)2 Table 7.7 page 317

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