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Question: show all workings question 1 production rates a manufacturing company...

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Show all workings. Question 1 Production Rates A manufacturing company wishes to find out whether the productivity of its workforce has increased now that they have a new machine. The factory examined the records for a random sample of 8 hours over the past month. The hourly production rates for these 8 hours were: 142 175 162 158 190 154 160 185 13181 Suppose the production rate before the use of the new machine is 155 units per hour. Test at 5% if the new machine has increased workers productivity on average using both the: (a) p-value approach, and (b) critical value approach. Note: For part (a), you should use the t-dist function in excel.

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