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The ratmaze.dat (https://sites.stat.psu.edu/online/courses/stat482/final/ratmaze.dat) data file contains data on the speed with which rats can negotiate a maze. The rats are grouped into three age groups (3, 6, and 9) and two genetic strains (A and B).
Discuss the results. Specifically, does there appear to be an interaction between age and strain? Justify your answer in two ways: (1) using the output from the analysis of variance, and (2) using the interaction plot.
Probability of Landing Number Greater Than 2 in Playing Dice
A company's manufacturing process uses 500 gallons of water at a time. A "scrubbing" machine then removes most of a chemical pollutant before pumping the water into a nearby lake. To meet federal gregulations the treated water must not contain more t..
Assume that a simple random sample has been selected from a normally distributed population and test the given claim. Use the p-value method for testing hypotheses.
For the new study, the estimate should be within 1% of the population proportion with a 90 percent confidence level. What is the necessary sample size?
the owner of the pizza palace wishes to include in an advertisement a statement about the number of different kinds of
you arrive at a bus stop at 800 a.m. knowing that the bus will arrive at some time uniformly distributed between 845
Explain briefly how simple data analysis methods you are to use in this project can be used in your chosen engineering discipline and for what purpose.
What is the minimal number of days a person must watch to be at least 96.8% sure of seeing one or more hawks migrating?
If one of the 100 employees is randomly selected, find the probability of getting someone who carpools, someone who cycles to work, or someone who works part time.
State the null and alternate hypotheses, the decision rule, find the test statistic, state your decision, and estimate the P value for the following:
Stock 2 closing price over last month has the mean of 59.2 and the standard deviation of 3.3. Determine which has higher coefficient of variation?
1. jim takes a simple random sample of 15 from a very large population whose variance is unknown. she intends to
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