a-survey-of-15001500-smartphone-users-found-that-4242-use-a-password-manager-to-

Question

A survey of 15001500  smartphone users found that 42%42\% use a password manager to store their login information. The survey reports a margin of error of ±3%\pm3\%. Translate this information into a confidence interval and approximate the confidence level of the interval.

Accepted Answer

(0.39,0.45)(0.39,0.45) Approximately 98%98\%

Answer

(0.31,0.46)(0.31,0.46)Approximately 90%90\%

Answer

(0.42,0.53)(0.42,0.53)Approximately 95%95\%

Answer

(0.48,0.57)(0.48,0.57)Approximately 99%99\%

A survey of 15001500 smartphone users found that 42%42\% use a password manager to store their login information. The survey reports a margin of error of ±3%\(\pm\)3\%. Translate this information into a confidence interval and approximate the confidence level of the interval.

A survey of $1500$ smartphone users found that $42 percent sign$ use a password manager to store their login information. The survey reports a margin of error of $\pm 3 %$ . Translate this information into a confidence interval and approximate the confidence level of the interval.