a-sample-of-4040-students-has-a-mean-test-score-of-7878-with-a-standard-deviatio

Question

A sample of $40$ students has a mean test score of $78$ with a standard deviation of $10$ . Construct a $95 percent sign$ confidence interval for the population mean.

Accepted Answer

$open paren 74.90 comma 81.10 close paren$

Answer

$open paren 74.90 comma 81.10 close paren$

Answer

$open paren 74.90 comma 81.10 close paren$

Answer

$open paren 74.90 comma 81.10 close paren$

A sample of 4040 students has a mean test score of 7878 with a standard deviation of 1010. Construct a 95%95\% confidence interval for the population mean.

A sample of $40$ students has a mean test score of $78$ with a standard deviation of $10$ . Construct a $95 percent sign$ confidence interval for the population mean.