Mathematics, 26.12.2019 20:31 karen718
In a large clinical trial, 393,888 children were randomly assigned to two groups. the treatment group consisted of 198,120 children given a vaccine for a certain disease, and 38 of those children developed the disease. the other 195,768 children were given a placebo, and 116 of those children developed the disease. consider the vaccine treatment group to be the first sample.1. assume that a 0.05 significance level will be used to test the claim that p1 < p2. which is better: a hypothesis test or a confidence interval? 2. if a 0.05 significance level is to be used to test the claim that p1 < p2, what confidence level should be used? (type an integer or a decimal.)
Answers: 3
Mathematics, 21.06.2019 14:10
which best describes the transformation from the graph of f(x) = x2 to the graph of f(x) = (x – 3)2 – 1? left 3 units, down 1 unitleft 3 units, up 1 unitright 3 units, down 1 unit right 3 units, up 1 unit
Answers: 1
Mathematics, 21.06.2019 14:30
After the seventh month of a 12-month loan: the numerator is: {(n + 11) + (n + 10) + (n + 9) + (n + 8) + (n + 7) + (n + 6) + (n + 5)} = , and the denominator is: {(n) + (n + 1) + + (n + 11)} = . therefore, the fraction is numerator/denominator (to the nearest tenth) = %
Answers: 2
Mathematics, 21.06.2019 16:00
Afurniture manufacturer produces chairs and sofas. each chair requires 10 yards of fabric, and each sofa requires 20 yards of fabric. the manufacturer has 300 yards of fabric available. to fulfill orders, the number of sofas must be at least twice the number of chairs. let x be the number of chairs and y the number of sofas. which inequalities are described in the problem? check all of the boxes that apply
Answers: 2
Mathematics, 21.06.2019 20:30
Janet is rolling a number cube with the numbers one through six she record the numbers after each row if she rolls of keep 48 times how many times should she expect to roll a 4
Answers: 1
In a large clinical trial, 393,888 children were randomly assigned to two groups. the treatment grou...
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