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How would I go about creating the following frequency distributions for the scores? Ungrouped, relative, cumulative, and cumulative relative frequency distributions. I want to include exact limits in the distribution. (This uses the continuous data in the table below)
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Calculate the 90% confidence interval about μ if sample size, n, is 55. How does increasing sample size affect margin of error, E?
a variety of studies suggest that 10 of all people are left-handed. does the student survey data support this
a february 2009 poll conducted by the marist college institute for public opinion in poughkeepsie new york asked a
Calculate a 95% confidence interval for the population mean, based on the sample 10, 12, 13, 14, 15, 16, and 49.
imagine you are a member of the erp project steering committee. your task is to recommend a model or framework for the
describe the characteristics of the f distribution. provide examples.what are we testing when we test for two
a fire detection device utilizes three temperature-sensitive cells acting independently in such a manner that any one
ballast must weigh 150 kg. it can be made from two raw materials a with a cost of rs. 20 per unit and b with a cost of
1.an instructor wanted to construct a confidence interval for the mean gpa of the students in his class. he used the
Below you are given a partial computer output based on a sample of 21 observations, relating an independent variable (x) and a dependent variable (y).
My question bout How do I use the TINV function within excel to back out the t-statistic for the test? Why did you use the TDIST function? I know ho to use the TINV function, but what does it mean to back out the t-statistic for the test?
Using the 50%-34%-14% figures, approximately what percentage of people have a score a) above 40 b) above 45 c) above 30 d) below 45 g) below 30.
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