You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. From a random sample of 60 dates, the mean record high daily temperature in a certain city has a mean of 85.14°F. Assume the population standard deviation is 14.96°F.

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A: Given polynomials are Part (3):  ( 1 - x) ( 1 + x + x2 + x3)  , Part (4):  ( 1 - x) ( 1 + x + x2 +…

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A: Given : y = xx

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Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.