Mathematics, 30.11.2019 05:31 madmar
The mean monthly expenditure on gasoline per household in middletown is determined by selecting a random sample of 100 households. the sample mean is $128, with a sample standard deviation of $38, what is the upper bound of a 90% confidence interval for the mean monthly expenditure on gasoline per household in middletown? a. $134.66 b. $162.20 c. $129.38 d. $131.42 e. $13287
Answers: 1
Mathematics, 21.06.2019 20:30
Daryl factors the polynomial p(x)=x3+x2β26x+24 to rewrite it as p(x)=(x+6)(xβ4)(xβ1). which equations must be true? there may be more than one correct answer. select all correct answers. p(1)=0 p(β4)=0 p(β1)=0 p(6)=0 p(4)=0 p(β6)=0
Answers: 1
Mathematics, 22.06.2019 00:00
Which statement best describes how to determine whether f(x) = x squared- x +8 is an even function ?
Answers: 2
Mathematics, 22.06.2019 01:30
Use the given degree of confidence and sample data to construct a confidence interval for the population mean mu . assume that the population has a normal distribution. a laboratory tested twelve chicken eggs and found that the mean amount of cholesterol was 185 milligrams with sequals 17.6 milligrams. a confidence interval of 173.8 mgless than muless than 196.2 mg is constructed for the true mean cholesterol content of all such eggs. it was assumed that the population has a normal distribution. what confidence level does this interval represent?
Answers: 1
The mean monthly expenditure on gasoline per household in middletown is determined by selecting a ra...
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