Difference in the mean amount of time

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The Kona Iki Corporation produces coconut milk. They take coconuts and extract the milk inside by drilling a hole and pouring the milk into a vat for processing.  They have both a day shift and a night shift to do this part of the process.  They would like to know if the day shift and the night shift are equally efficient in processing the coconuts. The results of the number of hours required to process 100 pounds of coconuts is recorded:

Shift

Simple Size

Average Number of Hours to Process 100 Pounds of Coconuts

Sample Std. Dev.

Day

15

2.2

0.87

Night

20

3.5

1.10

Is there a difference in the mean amount of time for each shift to process 100 pounds of coconuts?  Test at the 5% level of significance. (Degrees of freedom is 33)

Reference no: EM133124402

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