Use the text in question 3 to answer question 4. 3.In a random sample of 170 customers, 90 ordered chicken sandwitches for lunch. Construct a 94% confidence interval for the true proportion of...

Use the text in question 3 to answer question 4.

3.In a random sample of 170 customers, 90 ordered chicken sandwitches for lunch. Construct a 94% confidence interval for the true proportion of customers who buy chicken sandwitches for lunch

4.

In a recent study reported Sept. 21, 1952 on the Flurry Blog, the mean age of tablet users is 34 years. Suppose the standard deviation is 15 years. Take a sample of n = 100.

Find the 90th percentile for the sample mean age (to one decimal place)

Find the probability thatat least
150 favor a charter school.