A random sample of 300 Kentucky students showed a mean combined SAT score of 1758 with a standard deviation of 213. A random sample of 300 Tennessee students showed a mean combined SAT score of 1725 with a standard deviation of 228. Using a 95% confidence interval for the difference in mean combined SAT scores, comment on how Kentucky and Tennessee students perform on the SAT.

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A: Given: Sample size, n=35 Sample mean,x¯=89.66Sample sd, s=18.28Confidence level=96%

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A: Given data,n=352x=18.4s=6.8α=0.05df=n-1=351t-critical value is tc=1.967

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Q: A random sample of 40 adults with no children under the age of 18 years results in a mean daily…

A:

Q: A random sample of 4040 adults with no children under the age of 18 years results in a mean daily…

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A: Here we need to construct a 95% confidence interval for the population mean. Since the population…

Q: A random sample of 40 adults with no children under the age of 18 years results in a mean daily…

A: Given, A random sample of 40 adults with no children under the age of 18 years results in a mean…

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A: We have given that,  Sample mean (x̄) = 73,  standard deviation (s) = 5.15 and sample size (n) = 8…

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Q: A random sample of 40 adults with no children under the age of 18 years results in a mean daily…

A: Given       n1=40 ; x1=5.03 ; σ1=2.46     n2=40 ; x2=4.48 ; σ2=1.52At 90 ; CI , the t is…

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Q: A study by the department of education of a certain state was trying to determine the mean SAT…

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Q: A study by the department of education of a certain state was trying to determine the mean SAT…

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Q: A study by the department of education of a certain state was trying to determine the mean SAT…

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Q: A study by the department of education of a certain state was trying to determine the mean SAT…

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.