Aconsumer surveys 49 televisions. 80% cost between $250.00 and $350.00. the administrator decides to calculate a 95% confidence interval for this proportion.

the confidence interval is from 68% to 92% (to the nearest percent).

true
false

True.

Step-by-step explanation:

A consumer surveys 49 televisions. 80% cost between $250.00 and $350.00

So here,

p = proportion = 80% = 0.80,

n = sample size = 49,

We know that, confidence interval is,

where,

z = Z score of the confidence interval,

Standard Error =

Putting the values in the standard error formula,

Standard Error,

For a 95% confidence interval, z=1.96 and