russellc, September 19, 2018September 19, 2018, Statistics, 0 Part A is the answer. A. Pick the opposite of the “equation” see excel spreadsheet. This your answer B. Ho = is the answer in part A Ha = the equation. This answer is locked! Login To See This Answer. Registration is free! Username:Password:RegisterLost your password?

People were polled on how many books they read the previous year. How many subjects are needed to estimate the number of books read the previous year within one book with 99% confidence? Initial survey results indicate that sigma equals 17.2 books. russellc, September 12, 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

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

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

Determine whether to reject or fail to reject Upper H 0 at the level of significance of a) alpha equals 0.02 and b) alpha equals0.09. russellc, September 19, 2018September 19, 2018, Statistics, 0 Upper H H0: mu μ equals=109 Upper H Subscript aHa: mu μ not equals≠109 and P =0.02080.0208. see excel spreadsheet. This your answer

A nutritionist claims that the mean tuna consumption by a person is 3.9 pounds per year. A sample of 60 people shows that the mean tuna consumption by a person is 3.5 pounds per year. Assume the population standard deviation is 1.11 pounds. At alpha equals 0.1, can you reject the claim? russellc, September 19, 2018September 19, 2018, Statistics, 0 see excel spreadsheet. This your answer

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