russellc, September 12, 2018September 14, 2018, Statistics, 0 (0.264,0.460) The margin of error is 0.098.The sample mean is .3620. This answer is locked! Login To See This Answer. Registration is free! Username:Password:RegisterLost your password?

In a survey of 2769 adults, 1426 say they have started paying bills online in the last year. Construct a 99% confidence interval for the population proportion. Interpret the results. russellc, September 13, 2018September 14, 2018, Statistics, 0

A soccer ball manufacturer wants to estimate the mean circumference of soccer balls within 0.05 in. (a) Determine the minimum sample size required to construct a 90% confidence interval for the population mean. Assume the population standard deviation is 0.20 in. (b) Repeat part (a) using a population standard deviation of 0.40 in. Which standard deviation requires a larger sample size? Explain. russellc, September 12, 2018September 14, 2018, Statistics, 0

Find the minimum sample size n needed to estimate p for the given values of c, a, and E. russellc, September 12, 2018September 14, 2018, Statistics, 0 c = 0.90. a = 9.9. and E = 2 Answer = 67

Construct the indicated confidence interval for the population mean muμ using the t-distribution. Assume the population is normally distributed. c equals=0.99 x over bar x equals=12.7 s equals=2.0 n equals=7 russellc, September 13, 2018September 14, 2018, Statistics, 0

Use the given confidence interval to find the margin of error and the sample mean. (13.6,22.8) russellc, September 13, 2018September 14, 2018, Statistics, 0

In a survey of 641 males ages 18-64, 394 say they have gone to the dentist in the past year. Construct 90% and 95% confidence intervals for the population proportion. Interpret the results and compare the widths of the confidence intervals. If convenient, use technology to construct the confidence intervals. The 90% confidence interval for the population proportion p is The 95% confidence interval for the population proportion p is Interpret your results of both confidence intervals. Which interval is wider? russellc, September 13, 2018September 14, 2018, Statistics, 0

Find the critical value z Subscript c necessary to form a confidence interval at the level of confidence shown below. russellc, September 12, 2018September 14, 2018, Statistics, 0

Let p be the population proportion for the following condition. Find the point estimates for p and q. In a survey of 1193 adults from country A, 382 said that they were not confident that the food they eat in country A is safe. russellc, September 13, 2018September 14, 2018, Statistics, 0