5. Research is being conducted to determine if an intersection is too dangerous and needs to be altered. From a sample of 28 months, the mean number of accidents per month at the intersection was 1.75 with a standard deviation of 0.41. Assume that the population distribution is not too far from normal.

a) Create a 90% confidence interval for the mean number of accidents per month at the intersection.

b) Explain what the confidence interval you created means in context.