(b) Let µ1 represent the population mean profit as a percentage of stockholder equity for retail stocks, and let µ2 represent the population mean profit as a percentage of stockholder equity for utility stocks. Find a 95% confidence interval for 41 - H2. (Use 1 decimal place.) lower limit unner limit
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.
Hi How do you do (b)
x1 = 13.8
x2 = 9.1
n1 = 27
n2 = 33
s1 = 4.8
s2 = 2
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