shyra94

14.09.2021 • 

Mathematics

In an article in CA Magazine, Neil Fitzgerald surveyed Scottish business customers concerning their satisfaction with aspects of their banking relationships. Fitzgerald reports that, in 444 telephone interviews conducted by George Street Research, 16 percent of the respondents gave their banks a high rating for overall satisfaction. (a) Assuming that the sample is randomly selected, calculate a 99 percent confidence interval for the proportion of all Scottish business customers who give their banks a high rating for overall satisfaction. (Round your answers to 3 decimal places.)\

Ответ:

jadenmenlovep7s7uj

28.05.2022

Mathematics

---

If Tommy can paint a fence in 7 hours, he paints 1/7 of a fence in 1 hour.
If Huck and Tommy get one fence done in an hour, Huck must be able to complete 1-(1/7)=6/7 of a fence in one hr.

6/7x=1
x=7/6

Final 1 hour, 10 minutes

---

0,0(0 оценок)