Mathematics, 29.09.2020 14:01, Xghoued7268
Given: f(x) = x2 + 3x + 1 and g(x) = 2x β 3
Choose all that correctly evaluates the combined functions.
(f + g)(4) = 34
(f β g)(5) = 36
(fg)(2) = 11
(f/g)(3) = 19/3
Answers: 1
Mathematics, 21.06.2019 18:30, angelina6836
Anormally distributed data set has a mean of 176.3 and a standard deviation of 4.2. what is the approximate z-score for the data value of 167.9? 2.00 β2.00 8.4 β8.4
Answers: 2
Mathematics, 22.06.2019 01:30, kadinmorgan
Acell phone company offers two plans to its subscribers. at the time new subscribers sign up, they are asked to provide some demographic information. the mean yearly income for a sample of 40 subscribers to plan a is $45,000 with a standard deviation of $9,200. for a sample of 25 subscribers to plan b, the mean income is $64,300 with a standard deviation of $7,100. at the 0.025 significance level, is it reasonable to conclude the mean income of those selecting plan b is larger? assume unequal population standard deviations. hint: for the calculations, assume the plan a as the first sample. what is the decision rule? (negative amount should be indicated by a minus sign. round your answer to 3 decimal places.) compute the value of the test statistic. (negative amount should be indicated by a minus sign. round your answer to 2 decimal places.) what is your decision regarding h0 ? reject h0 fail to reject h0 compute the p-value. less than 0.01 between 0.01 and 0.025 between 0.025 and 0.05 between 0.05 and 0.10 greater than 0.10
Answers: 3
Given: f(x) = x2 + 3x + 1 and g(x) = 2x β 3
Choose all that correctly evaluates the combined functi...
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