Mathematics, 24.06.2019 11:10 sophiaa23
1.6448 an automobile manufacturer would like to know what proportion of its customers are not satisfied with the service provided by the local dealer. the customer relations department will survey a random sample of customers and compute a 90% confidence interval for the proportion who are not satisfied. (a) past studies suggest that this proportion will be about 0.23. find the sample size needed if the margin of the error of the confidence interval is to be about 0.015. (you will need a critical value accurate to at least 4 decimal places.) sample size: (b) using the sample size above, when the sample is actually contacted, 22% of the sample say they are not satisfied. what is the margin of the error of the confidence interval? moe:
Answers: 2
Mathematics, 21.06.2019 16:00
Find the solution set of this inequality. select the correct graph. |8x+16|> 16
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Mathematics, 21.06.2019 22:00
How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two
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Mathematics, 22.06.2019 02:30
The john nash mall used 17,4000 kilowatt hours in may, with a peak load of 92 kilowatts. the demand charge is $5.95 per kilowatt, and the energy charge is $0.08 per kilowatt hour. the fuel adjustment charge is $0.017 per kilowatt hour. what is the total electricity cost for may?
Answers: 2
Mathematics, 22.06.2019 03:00
How many and of which kind of roots does the equation f(x)=2x^4−9x^3+17x^2−16x+6 have?
Answers: 3
1.6448 an automobile manufacturer would like to know what proportion of its customers are not satisf...
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