Question

A random sample of 1007 adults in a certain large country was asked​ "Do you pretty much think televisions are a necessity or a luxury you could do​ without?" Of the 1007 adults​ surveyed, 522 indicated that televisions are a luxury they could do without. Complete parts​ (a) through​ (e) below.

​(a) Obtain a point estimate for the population proportion of adults in the country who believe that televisions are a luxury they could do without.

p with caret p equal = _____

(b) Use the results of part​ (c) to construct a 95​% confidence interval for the population proportion of adults in the country who believe that televisions are a necessity.

The 95​% confidence interval is ___

​

Answer 1

a) p^ = 522 / 1007 = 0.518

b) Z for 95% confidence interval = Z_0.025 = 1.96

Confidence interval

                              

                              

                               = (0.487 , 0.549)