russellc, September 19, 2018September 19, 2018, Statistics, 0 Pequals=0.2709 Pequals=0.0793 Pequals=0.0286 Pequals=0.0143 see excel spreadsheet. This your answer This answer is locked! Login To See This Answer. Registration is free! Username:Password:RegisterLost your password?

You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. If convenient, use technology to construct the confidence intervals. A random sample of 60 home theater systems has a mean price of $140. Assume the population standard deviation is $15.40 Construct a 90% confidence interval for the population mean. The 90% confidence interval is (nothing,nothing). russellc, September 12, 2018September 14, 2018, Statistics, 0

In a random sample of 25 people, the mean commute time to work was 30.4 minutes and the standard deviation was 7.3 minutes. Assume the population is normally distributed and use a t-distribution to construct a 99 confidence interval for the population mean muμ. What is the margin of error of muμ? Interpret the results. russellc, September 13, 2018September 14, 2018, Statistics, 0

Find the margin of error for the given values of c, sigma, and n. russellc, September 12, 2018September 14, 2018, Statistics, 0 c = 0.95. a = 2.1, n = 36 Answer 0.686

Find the margin of error for the given values of c, s, and n. c equals=0.95 s equals=66, n equals=12 russellc, September 13, 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

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

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