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Question: Find an example of a study that uses statistics in a magazine, newspaper, or website. Determine what variables were measured, and, for each variable, determine its type. Which of the questions listed under "Asking the Right Questions" were addressed in this study? Describe the question(s) in the context of the study, and then explain what answer was found.
The manufacturer of a nationally known "lite beer" claims that the approval rating for it's product is at least 85%. A local soft drink manufacturer has retained a marketing agency to test the "lite beer".
question calculate sp the sum of products of deviations for the following scores. note both means are decimal values
A random variable X with PDF f(x)=2xe^-x^2, where x>0. I need to draw a random sample of size 1000 from this distribution in Stata and obtain the sample mean and st. dev.
Describe the sample.- Describe the population from which the sample was selected.- Is the sample representative of the population?
Define Statistics and explain the characteristics & Uses of Statistics and what is a statistical error? In what way does it differ from a mistake? Explain the difference between absolute and relative errors.
the number of times a batter gets to bat in a game follows a binomial distribution nbin6 0.8. given the number of times
a manufacturer knows that on average 20 of the electric toasters produced require repairs within 1 year after they
identify two important operating standards that are routinely measured in your organization. these measures must be
Use this information to answer questions 2-4. Following a brushfire, a forester takes core samples from the ten surviving Bigcone Douglas-fir trees in a test plot within the burn area, and a dendrochronologist determines the age of the source tree..
abc university administration has hired your group as business consultants to determine whether the university should
conduct the hypothesis test and prove the test statistic critical value and p-value and state the conclusion.a package
(a) Calculate the appropriate standard error required. (b) Calculate the respective z-score you would use to determine the probability that the sample mean grade will be less than 75.
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