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How can you tell when you are to run an independent or a dependent sample test? Give an example to help illustrate your response.
Distributed with mean 4.6 minutes and standard deviation 1.4 minutes. If there are 75 students in class, determine probability the professor requires more than 6 hours to mark all of the midterms?
Evaluate and discuss the following hypothesis based on what you have learned about hypothesis statements. Should they be written differently, or are the sufficient the way they are stated?
Find the minimum sample size needed , using a prior study that found that 26% of the respondants said they planned to travel outside the US in next 12months.
Markups on Supertrex seen at other local stores range from 20% to 45%, Kruger decides that its markup had best be in this range as well. Formulate as an LP Problem.
question we are comparing two software packages one existing and one new software. ten sets of computations are run by
he probability is 1 in 4000000 that a single auto trip in the united states will result in a fatality. over a lifetime
The hole diameter is carefully measured (in cm) for 12 randomly chosen parts. At α = .05, do these independent random samples prove that the new process has smaller variance?
In a school how is ztest used in time table ... one group that studies 7 periods a day of 45 mins each class and the other group can choose semester wise classes and their time period is 90 mins
She wants to be 95% confident that her estimate is correct. If the standard deviation is $1050, how large a sample is needed to be accurate within $200?
a company is develoing a new golf ball. the overall distance is approximately normally distributed and has a standard
A researcher conducts an independent measures research study and obtains t=2.070 with df=28. How many individuals participated in the entire research study?
Fixed costs of $9,200 per month and variable costs of 70 cents per unit produced. Each item is sold to retailers at a price that averages 90 cents.
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