Anewspaper provided a "snapshot" illustrating poll results from 1910 professionals who interview job applicants. the illustration showed that 26% of them said the biggest interview turnoff is that the applicant did not make an effort to learn about the job or the company. the margin of error was given as plus or minus 3 ±3 percentage points. what important feature of the poll was omitted?
a. confidence level
b. point estimate.
c. sample size
d. confidence interval

 a. confidence level.

Step-by-step explanation:

Given : A newspaper provided a "snapshot" illustrating poll results from 1910 professionals who interview job applicants.

i.e. Sample size : n= 1910

The illustration showed that 26% of them said the biggest interview turnoff is that the applicant did not make an effort to learn about the job or the company.

The point estimate of the proportion of job applicants said the biggest interview turnoff is that the applicant did not make an effort to learn about the job or the company = p=0.26

[Note : The point estimate of the population proportion is basically the sample proportion.]

The margin of error was given as plus or minus 3 ±3 percentage points.

But confidence level is necessary to describe the margin of error .

A confidence interval tells how sure you are about the margin of error .

Thus , the  important feature of the poll was omitted = confidence level

step-by-step explanation:

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).