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# I have 8 questions of statistic that im stuck with,

### Customer Question

i have 8 questions of statistic that im stuck with
Customer: statistic question
JA: Is there anything else the Tutor should be aware of?
Customer: no
Submitted: 11 months ago.
Expert:  F. Naz replied 11 months ago.

Customer: replied 11 months ago.
1 Construct the confidence interval for...
1 Construct the confidence interval for the population mean
c= 0.95, x=9.7 σ=0.3 and n=56
A 95% confidence interval for μ is ( , )
(Round to two decimal places as​ needed.)
2 Construct the confidence interval for the populationmean
c= 0.90, x=16.1 σ=7.0 and n=100
A 95% confidence interval for μ is ( , ) ​(Round to two decimal places as​ needed.)
3 Find the minimum sample size n needed to estimate μ for the given values of c,σ, and E
c= 0.90, x=7.8 E=2
assume that a preliminary sample has at least 30 members
n= ( ) round to the nearest whole number
4In a survey of 2531 ​adults, 1480 say they have started paying bills online in the last year.Construct a​ 99% confidence interval for the population proportion. Interpret the results.
A​ 99% confidence interval for the population proportion is ( , )
​(Round to three decimal places as​ needed.)Interpret your results. Choose the correct answer below.
A
With​ 99% confidence, it can be said that the population proportion of adults who say they have started paying bills online in the last year is between the endpoints of the given confidence interval.B.
The endpoints of the given confidence interval show that adults pay bills online​ 99% of the time.
C.With​ 99% confidence, it can be said that the sample proportion of adults who say they have started paying bills online in the last year is between the endpoints of the given confidence interval
I need them today by 3pm the latest .. If it is not possible I would like a refund please
Expert:  F. Naz replied 11 months ago.