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Random sample 64 Third grade students take reading test, sample score 51.96, standard deviation population test score 15. The state average is 50 the school wants to know is the third graders score greater than state. Perform hypothesis and compute p value.
five students ann betty clint douglas and edward are rated equaly qualified for admission to law school ahead of other
In this exercise and in the previous one, you added an outlier to the original data set and reanalyzed the data. Write a short summary of the changes in correlations that can result from different kinds of outliers.
During any period, a potential customer arrives at a certain facility with probability ½ If there are already two people at the facility (including the one being served), the potential customer leaves the facility immediately and never returns. Ho..
In one investigation, it was found that children age 12 learn better when allowed to discover rules whereas children age 6 learn better when taught didactically
An internet company has redesigned its website to improve the online experience of its customers. To test whether the new design has improved its customers' experience it has asked people to comment on whether they prefer the new format or not.
The necessary sample size has been calculated as n = 100. If the client suddenly decides that the maximum error must be only one-fourth that originally specified, what sample size will now be necessary?
the amount of snowfall falling in a certain mountain range is normally distributed with a mean of 70 inches and a
What is the maximum error of estimate for p ?
question tim made 14 ceramic statues for the craft show. in how many ways may he display them in a row if only 5 may be
Test the null hypothesis that the two groups of children consume equal amounts of sweetened drinks versus the two-sided alternative.
(a) Construct a histogram for the data and describe its properties. (b) Construct a runs chart for the data. (c) Write a brief summary of the two data displays contrasting the infor mation gained by each plot.
Statistical questions tend to fall into what two main categories?
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