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A building has ten floors plus a basement, if 12 people get into an elevator at the basement, and each chooses a floor at random to get out of independently, at how many floors do you expect the elevator to make a stop to let out one or more of these people?
A random sample of 200 people was taken. Sixty percent of the people favor President Obama. The 95% confidence interval for the true population of people who favor Obama is?
q1. the probability that an individual egg in a carton of eggs is cracked is 0.03. you havepicked out a carton of 1
womens heights are normally distributed with mean 63.7 in and standard deviation of 2.5 in. a social organization for
A sample of 49 pieces of cloth reveals a sample mean breaking strength of 69.1 pounds. State the null and alternative hypotheses.
Find a 95% confidence interval for the mean µ of the population from which the men were selected.
A shipment of 500 dolls is received by Panda Importers. The quality control manager selects a random sample of 75 to test. Five are bound to be defective. Construct a 90 percent confidence interval for the population proportion of defective dolls ..
An analysis decides to remove records that have missing values-About how many records would you expect would be removed
let xt 1e t- 0.5et-1 t 123.... where etlld02the variance of et is 2.a compute the mean of xtb compute the variance
If you are using exponential smoothing for forecasting an annual time series of revenues, what is your forecast for the next year if the smoothed value for this year is $32.4 million?
Find the maximum total allowable weight if we want a 0.975 probability that this maximum will not be exceeded when 16 males are randomly selected.
Determine the critical value and p value for one mean large sample test.
It is estimated that the probability that the general population will live past their 85th birthday is 5.4%. Use the standard normal distribution to approximate this Binomial problem and answer the following questions.
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