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The consequences of the central limit theorem is that if we end up averaging the measurements of a particular quantity, the distribution of an average tends on going toward a normal one?
The average score on the stat midterm was 75 points with a standard deviation of 5 points, and Gregor's z-score was -2. How many points did he score.
Use suitable one or two sided test for null hypothesis of no difference in them then changes rating between groups at 0.10 significance level.
Assuming an exponential service rate μ, set this up as a birth and death process and determine the birth and death rates.
Let's further suppose that there was good interrater reliability on these frequency counts of behaviours and that they are interval/ratio level of measure, normally distributed, and independent observations.
What is the expected number of crimes that will be solved? What is the standard deviation?
It is a striking fact that the first digits of numbers in legitimate records often follow a distribution known as Benford's Law, shown below.
At α = 0.10 test the claim that there is a difference in means of the salaries. (a) State the Hypotheses: (b) Compute the Test statistic: (Round off correctly)
How large a sample is required if the 97 percent level of confidence is used and the estimate is to be within $2,500? The standard deviation is $16,000.
When carrying out a large sample test of H 0 : m =10 vs. H a : m ¹ 10 by using a p-value, we reject H 0 at level of significance α when the p-value is:
Find the test statistic value for testing the equality of proportion variances.
Confidence interval for the population mean - Prepare a 99% confidence interval for the population mean.
In fitting the simple linear regression model Yi ~ N (α + β xi, σ 2 ) to the following data:
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