7-9. Use the simple random sampleof weights of women from a dataset, we obtain these sample statistics:
X = 141.38 lbs
Research from other sources suggest that the population of weights of women has a standard deviationgiven by o = 31.95 lb.
a. Find the best point estimate of the meanweight of all women. (The best point estimate is ___ lbs)
b. Find a 90% confidence intervalestimate is ___ lb < u < ___ lb.
SEE ATTACHMENT X has a – line over it.
The solution examines a simple random sample of weights of women. The best point estimate of the mean weight is determined.