Asurvey reported that 70% of those responding to a national survey of college freshmen were interested in taking summer courses. using the sample size of 49, calculate a 95% confidence interval for the proportion of college students who are interested in taking summer courses.

95% confidence interval: (0.5717,0.8283)          

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 49

p = 70% = 0.7

Alpha, α = 0.05

The confidence interval can be calculated as:

Putting the values, we get,

95% confidence interval: (0.5717,0.8283)      

b

step-by-step explanation:

the word superfluous means unnecessary