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?

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

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

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

Find the critical value tc for the confidence level c equals=0.90 and sample size n equals=18 LOADING… Click the icon to view the t-distribution table. Use a t-distribution table to look up the t-value using the level of confidence c and the degrees of freedom nminus−1. The level of confidence c equals=0.90 is given. russellc, September 13, 2018September 14, 2018, Statistics, 0

A random sample of 75 eighth grade students’ scores on a national mathematics assessment test has a mean score of 278. This test result prompts a state school administrator to declare that the mean score for the state’s eighth graders on this exam is more than 275. Assume that the population standard deviation is 36. At alphaequals0.12, is there enough evidence to support the administrator’s claim? Complete parts (a) through (e). russellc, September 19, 2018September 19, 2018, Statistics, 0 see excel spreadsheet. This your answer

Use the given statement to represent a claim. Write its complement and state which is Upper H 0 and which is Ha. p < 0.55 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....

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

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