A study of stress on the campus of your university reported a mean stress level of 76 (on a 0 to 100 scale with a higher score indicating more stress) with a margin of error of 4 for 95% confidence. The study was based on a random sample of 49 undergraduates. Give the 95% confidence interval.

The 95% confidence interval for population mean is (72, 80).

Step-by-step explanation:

The (1 - α) % confidence interval for population mean (μ) is:

The Margin of error for this confidence interval is:

The confidence interval for μ can also be written as:

Given:

Compute the 95% confidence interval for population mean as follows:

Thus, the 95% confidence interval for population mean is (72, 80).

yes

step-by-step explanation:

236 cm 16 time 12 = 192

6 times 7 = 42

192+42