subject
Mathematics, 08.01.2021 18:00 izzyp619

Twenty-four males aged 25 to 29 were selected from the Framingham Heart Study. Twelve were smokers and 12 were non-smokers. The subjects were paired with one being a smoker and the other a non-smoker. Otherwise, each pair was similar with regard to age and physical characteristics. One piece of data that was collected on each of the pairs of subjects was systolic blood pressure readings. The data is shown here. You are asked to determine whether the data indicate that the mean systolic blood pressure for smokers is higher than the mean systolic blood pressure for non-smokers. Conduct the appropriate test using a significance level of 0.025.

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 20.06.2019 18:02
When they are both racing on hoverboards, victoria is 3 times as fast as her brother max. when she is on foot, she is 3 times slower than max on his hoverboard. they took off on hoverboards at the same time, but after 12 minutes, victoria’s hoverboard broke and she immediately started to run. if the race was a tie, how long, in minutes, did it last from start to finish?
Answers: 2
question
Mathematics, 21.06.2019 17:00
Which simplifys to a+ b? a-(1-b)+1 -(1-a)-b+1 (a--1) -1)+1
Answers: 1
question
Mathematics, 21.06.2019 20:30
Suppose you just purchased a digital music player and have put 8 tracks on it. after listening to them you decide that you like 4 of the songs. with the random feature on your player, each of the 8 songs is played once in random order. find the probability that among the first two songs played (a) you like both of them. would this be unusual? (b) you like neither of them. (c) you like exactly one of them. (d) redo () if a song can be replayed before all 8 songs are played.
Answers: 2
question
Mathematics, 21.06.2019 22:50
Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables
Answers: 3
You know the right answer?
Twenty-four males aged 25 to 29 were selected from the Framingham Heart Study. Twelve were smokers a...
Questions
question
English, 04.02.2021 02:00
question
Mathematics, 04.02.2021 02:00
Questions on the website: 13722367