A multinational firm wants to estimate the average number of hours in a month that theiremployees spend on social media while on the job. A random sample of 83 employees showedthat they spent an average of 21.5 hours per month on social media, with a standard deviationof 2.5. Construct and interpret a 95% confidence interval for the population mean hours spenton social media per month.

95% of the population spent between 16.8 hours to 26.2 hours on social media per month

Step-by-step explanation:

sinn is the total amount of students now and m were the students before, you subtract them both (n-m) and divide that by m. then, since to get a percentage from a fraction you have to multiply by 100, your answer should look like this: n-m/m*100

step-by-step explanation:

12

step-by-step explanation:

12 + 5 = 17

12x2=24

24-7=17