This problem has been solved! See the answer A bank is experimenting with programs to direct bill companies for commercial loans. They are particularly interested in the number of errors of a billing program. To examine a particular program, a simulation of 1000 typical loans is run through the program. The simulation yielded a mean of 4.6 errors with a standard deviation of 0.5. Consturct a 95% confidence interval on the true mean error rate.

The 95% confidence interval would be (4.57,4.63).

Step-by-step explanation:

Since we have given that

N = 1000 typical loans

Mean = 4.6 errors

Standard deviation = 0.5 errors

At 95% confidence, z = 1.96

So, 95% confidence interval on the true mean error rate is given by

Hence, the 95% confidence interval would be (4.57,4.63).

part a

in a city ice cream is mostly only bought when the temperature is very high as ice cream cools down our

so we can derive the conclusion that as the temperature increases the number of ice creams sold also increases

part b

y intercept is 5

slope is 2

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