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Home-school has become very popular in the united states, and many colleges try yo sttaract students from this group. evidence suggests that approximately 90% of all homeschooled children attend college. in order to check this claim, a random sample of 225 homeschooled children was obtained and 189 of them were found to have attended college. at the 1% significance level, is there enough evidence to sugget that the percent of homeschooled children attend college id different that 90%?you must include all of the following components to receive full credit.1. Assumptions2.Hypothesis3.Test Statistic4.P-value5.Conclusion in context(includes the significance level and you decision
On any given flight, an airline's goal is to fill the plane as much as possible without overbooking. If, on average, 10% of customers cancel their tickets, all independently of each other, what is the probability that a particular flight will be o..
measures of central tendency and dispersion with spssthe statistics for this week become the basis for several other
Statistics from Cornell's Northeast Regional Climate Center indicate that Ithaca, NY, gets an average of 35.4" of rain each year with a standard deviation of 4.2". Assume the data is normally distributed.
State a research question for which a single-group post-test only design can yield relatively unambiguous findings.
Test a manufacturer's claim that the average life of its product is 100 hours (H0: µ = 100). There is evidence that the true average life of the product is not as advertised.
Have X= 1, 4, 3, 2, 5, 6, 0. and Y= 1, 3, 3, 1, 4, 7, 2. I get the least squares equation as y=15/28+23/28x. is it correct? How do I test whether the model can be used for predicting Y? How much of the variation in T is explained by variation i..
An average of 8.5 cars are sold per 10-hour day on Saturdays and Sundays in January and February. A) On the first Saturday in February, the dealership opens at 9am. Find the probability that the time until the first sale is more than 2 hours...
Develop a regression model and complete appropriate analysis of the three largest U.S. Air carriers
Frequency distribution from part a: Find the mean, variance and stand excldeviation and using the frequency distribution from parta: What is the probability of a randomly selected herb to have a height of at least 17 inches?
How would you improve upon the way the Bureau of Labor Statistics computes the unemployment rate?
Obtain a time-series plot and correlogram of the residuals from (9) and comment on them with regard to the violation of classical assumptions. Test for fourth-order autocorrelation using the Breusch-Godfrey procedure
Find out about your company's forecasting system
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