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A coach uses a new technique in training middle distance runners. The times for 8 different athletes to run 800 meters before and after this training are shown below (in seconds).
pre train 115.2 121 108 112 108 119 121 111
post train 116 119 105 112 109 115 119 111
question 1 what is a chi-squared test? provide a fully referenced explanation.question 2 provide a brief example on a
What sample size would be needed to obtain an error of ±10 square millimeters with 99 percent confidence?
For the following ANOVA experiments, determine the critical region(s) and critical value(s) that are used in the classical approach for testing the null hypothesis
Find the 90% confidence interval estimate of the population mean. Interpret the interval estimate. 79 43 58 66 101 63 79 33 58 71 60 101 74 55 88.
A loan application is received during the day. By hand: Find the probability that the amount requested amount is $90,000 or more? Find the probability that the amount requested is between $75,000 and $90,000?
A certain pond to check if they are significantly larger than the mean stated above. Is the mean of the sample larger population of this fish? use either L=1% or L=5%.
Use confidence interval to determine the estimated margin of error, Then determine the sample mean.
Four research participants take a test of mannual dexterity (high scores mean better dexterity) and anxiety test (high scores mean more anxiety). Scores are as follows:
an anova procedure is used for data obtained from five populations. five samples each comprised of 20 observations were
fifty people in the civilian labor force are randomly selected and the sample average age is computed to be 36.4.a find
question in a group of persons traveling in a bus 6 persons can speak tamil 15 can speak hindi and 6 can speak
What percentage of normal and healthly adults would be considered to have a fever? Does this percentage suggest that a cutoff of 100.6 F is approproate?
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