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You are considering buying a new house in a new city. You want to know the average price of the houses in a new community to which you are considering moving. Do you want to know the mean, median or mode price for the price of homes in that community? Why?
Paul received a score of 80 on a history test for which the class mean was 70 with a standard deviation of 10. He received a score of 75 on a biology test for which the class mean was 70
What are some of the words that form clues? How does one know what is a population parameter and a test statistic?
Calculate the mean difference for the following data. The scores are the number of pictures the participants remembered correctly out of 20.
Suppose 5.9% of certain population use public transportation to get to work. You randomly select 380 workers and ask them if they use public transportation to get to work.
What is the probability that the sample of 16 pencil leads will have an average MIR between 6400 and 6550 psi? What assumptions did you make when answering the previous questions?
six missiles are fired at a certain target. the probability that a missle will hit the target is 75. what is the
It is reported in USA Today that the average flight cost nationwide is $342.59. You have never paid close to that amount and you want to perform a hypothesis test that the true average is actually less than $342.59. What are the appropriate hypoth..
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?
Using Excel, conduct a regression analysis for the following data comparing vehicle weight with fuel efficiency, including:a.?Trendline chart b.?Equation c.?Correlation Coefficient
North Manufacturing has a demand for 1,000 pumps each year
Conduct post hoc comparisons with the LSD method. Which groups differ significantly at α = 0.05?
What is the probability that exactly 5 nonconforming parts are produced during a 1-hour period? What is the probability that at least 5 nonconforming parts are produced during a 1-hour period?
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