Mathematics, 15.12.2020 21:00 monstax6
PLEASE HELP ME
A randomized study compared two drugs that are designed to increase a child's human growth hormone level. It was found that over a 1-year period, those receiving Drug A increased their hormone level by a mean of 28 IU. Those receiving Drug B increased their hormone level by a mean of 15 IU (IU = International unit).
To determine whether the results are significant, the data are rerandomized and the difference of the means is shown in the dot plot.
What is the best conclusion to make based on the data?
The difference of the means is significant because the rerandomizations show that it is outside the range of what likely happens by chance.
The difference of the means is not significant because the rerandomizations show that it is within the range of what likely happens by chance.
The difference of the means is not significant because the rerandomizations show that it is outside the range of what likely happens by chance.
The difference of the means is significant because the rerandomizations show that it is within the range of what likely happens by chance.
Answers: 3
Mathematics, 21.06.2019 23:10
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Mathematics, 22.06.2019 02:30
The upcoming championship high school football game is a big deal in your little town. the problem is, it is being played in the next biggest town, which is two hours away! to get as many people as you can to attend the game, you decide to come up with a ride-sharing app, but you want to be sure it will be used before you put all the time in to creating it. you determine that if more than three students share a ride, on average, you will create the app. you conduct simple random sampling of 20 students in a school with a population of 300 students to determine how many students are in each ride-share (carpool) on the way to school every day to get a good idea of who would use the app. the following data are collected: 6 5 5 5 3 2 3 6 2 2 5 4 3 3 4 2 5 3 4 5 construct a 95% confidence interval for the mean number of students who share a ride to school, and interpret the results. part a: state the parameter and check the conditions. part b: construct the confidence interval. be sure to show all your work, including the degrees of freedom, critical value, sample statistics, and an explanation of your process. part c: interpret the meaning of the confidence interval. part d: use your findings to explain whether you should develop the ride-share app for the football game.
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Mathematics, 22.06.2019 03:30
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PLEASE HELP ME
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