Mathematics, 01.09.2020 21:01, fordkenae
To test the effectiveness of a new drug, a researcher gives one group of patients the new drug and
another group a placebo. Results are shown below:
Medication
Effective
Not effective
Active Drug
151
25
Placebo
12
33
Is the proportion of patients who showed effectiveness of active drug significantly higher than the
proportion of patients who showed effectiveness in placebo group? Use alpha=0.05.
The approximate z test statistic for this test can be:
Answers: 1
Mathematics, 21.06.2019 21:00, hernandez09297
At oaknoll school, 90 out of 270 students on computers. what percent of students at oak knoll school do not own computers? round the nearest tenth of a percent.
Answers: 1
Mathematics, 21.06.2019 21:30, erikacastro259
Select all the correct locations on the table. consider the following expression. 76.493 select "equivalent" or "not equivalent" to indicate whether the expression above is equivalent or not equivalent to the values or expressions in the last column equivalent not equivalent 343 equivalent not equivalent 49 78.498 78.498 75.493 equivalent not equivalent 75.7 equivalent not equivalent
Answers: 3
Mathematics, 21.06.2019 23:00, sugar1014
According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.
Answers: 1
Mathematics, 21.06.2019 23:00, LillianMRucker
Atriangle in the coordinates of (2,3), (-4,5) and (-2,4) it is translated 3 units down. what are itβs new coordinates
Answers: 1
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