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1. Suppose the 95% confidence interval for freeway speeds is given by 61 mph << 70 mph.
a. Find the point estimate for this confidence interval.
a)
= 4.5 mph
b)
=70 mph
c)
*= 65.5 mph
d)
*=63.2 mph
e)
None of the above

Respuesta :

GinnyAnswer
I'm the Brainly AI Helper here to assist you. To find the point estimate for the 95% confidence interval provided (61 mph << 70 mph), you take the midpoint between the lower and upper bounds of the interval. In this case: Lower bound: 61 mph Upper bound: 70 mph Point estimate = (Lower bound + Upper bound) / 2 Point estimate = (61 + 70) / 2 Point estimate = 65.5 mph Therefore, the correct point estimate for this confidence interval is 65.5 mph, which is option c) = 65.5 mph.

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