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To test for the equality of two population variances, independent samples gave the following summary measures:
Sample 1 : n =11, mean = 10, sd = 4
Sample 2 : n =17, mean = 12, sd = 2
If the value of the test statistic isn't equal to 4, then it must be equal to _____ (two decimal places).
Let P(x,y) be x has been to y, where the domain of discourse for x is all students in this class, and the domain of discourse for y is all countries in the world. Express the following propositions in English.
Do you think the population proportion could really be as high as 0.5? If not, repeat part (a) using an estimated proportion that you think would be more likely to be true. What effect does your use of this estimate have on the sample size?
Select a method for graphically representing the provided date Use the method to create a graph analyze the date and provide a narrative description of my analysis.
Conduct a test for checking that the proportions of women and men that liked commercial A are the same versus the two-sided alternative at the 5% level.
In some ways, ANOVA is like what communications engineers refer to as "signal-to-noise ratio". What could I possibly mean by that statement?
consider a random sample of size n from a bernoulli distribution xi bin1p. for a uniform prior density p unif01 and
exploratory data analysis.a. perform exploratory data analysis on all variables in the data set. realizing that you
When 20 participants come to their appointment time, they report to the researcher how many hours of sleep they had the previous night.
Consider this assignment as an opportunity to apply statistical knowledge
Suppose that there is a lottery where you select 3 different numbers between 0 and 9. A digit cannot be selected twice so you can select 123 but not 112. How many different three digit numbers are possible
Suppose you are on a test and are asked to determine whether the given experiment is binomial, Poisson, or neither. What are you going to think about to determine which test to use. Do you have a checklist? How would you approach this problem?
Compute 3-sigma control limits and given the following sample means: 1.007, 1.002, 0.994, 1.010, 0.997,0.998,determine if the process is stable or not.
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