# Express the confidence interval 57.7 % \pm 4.9 % in

Express the confidence interval $$57.7 \% \pm 4.9 \%$$ in interval form.
Express the answer in decimal format (donot eter as percents).

• Questions are typically answered in as fast as 30 minutes

### Solve your problem for the price of one coffee

• Math expert for every subject
• Pay only if we can solve it

Khribechy

Step 1
Confidence intervals refers to the probability that a population parameter will fall between a set of values for a certain proportion of times. In the given data confidence intervals are given in percentage we need to convert into decimal values.
Calculation
Confidence interval $$57.7 \% \pm 4.9 \%$$
$$\displaystyle{\left({57.7}\div{100}\right)}\pm{\left({4.9}\div{100}\right)}$$
$$\displaystyle={0.577}\pm{0.049}$$.
Result
Confidence interval $$\displaystyle={\left[{0.626},{0.528}\right]}$$.