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Can a regression equation be used to confidently predict the value of the response variable for any value of the explanatory variable?
Suppose you roll two six-sided dice and add the results together. What are the odds that you would roll a 9 or higher?
Significance test for apartment rents.- What is the standard error of the mean?- What are the degrees of freedom for a one-sample t statistic?
question a production run of toothpaste requires a fixed cost of 100000. the variable cost per unit is 3.00. if 50000
What proportion of homes heating with gas had a gas bill over $382?- What proportion of homes heating with gas had a gas bill between $497 and $537?
let q be a random variable which is uniformly distributed between 0 and 1. on any given day a particular machine is
Check any assumptions of the hypothesis test; Write down both the null and alternative hypotheses; Carry out the t test and report the p-value, and the test statistic.
1. in a taste test between coke c and pepsi p a random sample of 15 students gave the following preferences c c p
Two airlines fly to Memphis. according to airport data for the past year, wings airlines planes arrived on time 330 times and were late 60 times. Global airlines planes arrived on time 430 times and were late 50 times.
Elwood withdrew $1,000 on March 1, 1999. If there were no other deposits or withdrawals, determine Elwood's account balance on March
Florida State University administers a test of mathematics placement to students when they first enter the university.
Health conditions and risk behaviors. The data file BRFSS gives several variables related to health conditions and risk behaviors as well as demographic.
Suppose that you were interested in investigating the effect of a drug that is to be used in the treatment of patients who have glaucoma in both eyes.
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