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A simple random sample is to be drawn from a population of 800. In order to have 95% confidence that the sampling error in estimating π is no more than 0.03, what sample size will be necessary?
according to the center on budget and policy priorities article curbing flexible spending accounts could help pay for
The director of admissions at Kinzua University in Nova Scotia estimated the distribution of student admissions for the fall semester on the basis of past experience.
Determine if this sample data provides sufficient evidence to indicate that the bulbs have their advertised life expectancy. Do NOT do a confidence interval.
Use α = 0.10 and assume that the population is normally distributed. Write a paragraph that interprets the test's decision.
Assume that the significance level is a= 0.1. Use the given information to find the p-value and the critical value (s). With H1: p = with line through it 1/2 the test statistic is z= - 1.35
Measures of Central Tendency
a taiwanese fast food chain wants to introduce its franchises into the western united states 28 different states .
Heights of college-aged women are approximately bell-shaped and symmetric, with almost all of them (95%) falling between 58" and 72". Find the approximate values of the mean and standard deviation.
A sample of 15 workers revealed the following number of minutes traveled. Develop a 98 percent confidence interval for the population mean. Interpret the result. Please explain how you calculate.
What proportion of the customers will still have to wait more than 50 minutes if the variability in service times is the same as before?
For the period from 1918 to the present, in a random sample of 9 wolves spotted in the region, what is the probability that 6 or more were male.
Design a recording form for behavior and explain how you would use this form to gather data on this behavior. What equipment would you need to collect data?
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