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Question: In your own words, explain the rationale of ANOVA. Identify the two components that combine to produce an F value. Explain what each of these components measures, both when the null hypothesis is true and when it is false
You have a hypothesis that two drugs have different effects on lowering anxiety. You would have anxiety scores for drug A and anxiety scores for drug B (all after 4 weeks of treatment) to run inferential analysis for after 4 weeks.
Test at the 1% significance level whether the mean satisfaction indexes for all customers for the two supermarkets are different.
i have two questions i need help with. please show me how to obtain the answers. they are in the attachment. thank
Investigate the percent of babies born below your birth weight by specific term. (If you do not know this information, make a guess of your birth weight and term.)
On May 23, 2013, Gallup reported that of the 1,005 people surveyed, 76% of U.S. workers believe that they will continue working past retirement age. The confidence level for this study was reported at 95% with a ±3% margin of error. Determine the ..
Using the original data, test at the 5% significance level that the population standard deviation of studying times is greater than 4 hours.
Calculate the Average yield per acre, calculate the Standard deviation and explain the difference between a one sample and a two sample hypothesis test; provide an example of each.
to use instruments in a shared research lab you first have to ask the lab monitor. she will then walk into the lab to
As part of a data base on new births at a hospital some variables recorded are the age of the mother, marital status of the mother (single, married, divorced, other), weight of the baby, and sex of the baby. Of these variables
47of americans when surveyed by a gallup poll felt that having a gun in the home made them safer than having no gun.
The standard deviation is $10,000, can the president conclude that there is difference? At a =0.10, is he correct? The hypotheses and the claim.
in a sample of 1000 voters 520 plan to vote for candidate a. find the 95 confidence interval for the percent in favor
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