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Consider independent random samples of sizes n1 = 10 and n2 = 16 from normal populations. Also, s12 = 436.42 and s22 = 98.36. Hypotheses are H0:σ1 squared=σ2 squared and Ha: σ1 squared ≠ σ2 squared. Conduct a one-sided, right-tailed hypothesis test concerning the population variances with α = 0.01.
Identify the correct conclusion.
a) There is evidence to suggest population variance 1 is different from population variance 2.
b) There is no evidence to suggest population variance 1 is different from population variance 2.
Identify the bounds on the p value associated with this hypothesis test.
0.002<p<0.02
0.04<p<0.07
0.001<p<0.01
the following data represent the number of children in a sample of 10 families from chicago 4 2 1 1 5 3 0 1 0 and 2.
Is there a significant difference between claimed and actual mean weight today? Justify your answer.
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use the given data to find the minimum sample size required to estimate the population proportion.margin of error 0.044
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Suppose that you have never tested this process, so do not know the standard deviation of the filling process. A sample of 40 boxes has been taken, and you find the mean to be 362.3 grams and a standard deviation of 2.3 grams.
Let pr be the probability that the rumor is told r times without coming back to a student who has already heard it from a dormitory mate. So p1 = p2 = 1, and pn
Certain eggs are stated to have reduced cholesterol content, with an average of only 2.5% cholesterol. A concerned health group wants to test whether the claim.
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