Mathematics, 10.10.2019 05:30, howme
You want to estimate the proportion of kids between the ages of 12 and 15 who have tried marijuana. you take a random sample of 130 maryland students and find that 23% of the sample report having tried marijuana. last year, the federal government ran a much larger survey of 10,000 students and found that 29% reported ever using marijuana. test the null hypothesis that the true population proportion of maryland students who have smoked marijuana is 29% versus the alternative hypothesis that it is different than that. use a 3% significance level. interpret your result.
Answers: 1
Other questions on the subject: Mathematics
Mathematics, 21.06.2019 21:30, kalieghcook
If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.
Answers: 1
Mathematics, 21.06.2019 21:30, xaguilar
Data from 2005 for various age groups show that for each $100 increase in the median weekly income for whites, the median weekly income of blacks increases by $105. also, for workers of ages 25 to 54 the median weekly income for whites was $676 and for blacks was $527. (a) let w represent the median weekly income for whites and b the median weekly income for blacks, and write the equation of the line that gives b as a linear function of w. b = (b) when the median weekly income for whites is $760, what does the equation in (a) predict for the median weekly income for blacks?
Answers: 2
Mathematics, 22.06.2019 00:30, connormaxie
Answer 20 points and brainiest ! on the board, your teacher writes an example of how to find the median. one of the numbers is erased, leaving what is shown, 18, 30, 26,12 22. what is the median? a. 10 b. 20 c. 24 d. 28
Answers: 2
Do you know the correct answer?
You want to estimate the proportion of kids between the ages of 12 and 15 who have tried marijuana....
Questions in other subjects:
Chemistry, 26.04.2021 23:50
Mathematics, 26.04.2021 23:50
English, 26.04.2021 23:50
