SOLUTION: Could someone show me to how work this out?
2. A study of 50 pizza delivery workers found that they could make 6 deliveries per hour with a standard deviation of 1. Find the 9
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Question 1078233: Could someone show me to how work this out?
2. A study of 50 pizza delivery workers found that they could make 6 deliveries per hour with a standard deviation of 1. Find the 95% confidence interval of the mean for all pizza delivery workers.
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
95% CI is tdf=49, 0.975,s=1 sqrt (n)=sqrt (50)
t value is 2.01
interval width is +/- 2.01*1/sqrt(50)=0.284
(5.72, 6.28)
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