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anonymous
 one year ago
Carl conducted an experiment to determine if there is a difference in the mean body temperature between men and women. He found that the mean body temperature for a sample of 100 men was 91.1 with a population standard deviation of 0.52 and the mean body temperature for a sample of 100 women was 97.6 with a population standard deviation of 0.45.
Assuming the population of body temperatures for men and women is normally distributed, calculate the 98% confidence interval and the margin of error for the mean body temperature for both men and women.
anonymous
 one year ago
Carl conducted an experiment to determine if there is a difference in the mean body temperature between men and women. He found that the mean body temperature for a sample of 100 men was 91.1 with a population standard deviation of 0.52 and the mean body temperature for a sample of 100 women was 97.6 with a population standard deviation of 0.45. Assuming the population of body temperatures for men and women is normally distributed, calculate the 98% confidence interval and the margin of error for the mean body temperature for both men and women.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I understand that the zscore formula needs to be used I'm just not sure exactly how to use it

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.2dw:1439414198837:dw

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.2no I am just showing you graphically how the problem is interpreted in the graph for a normally distributed curve

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I know the formula is z = (x  91.1)/(.52) but I don't know how to go from there

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.2\(\large \bar x \pm Z \frac{\sigma }{\sqrt{n}}\)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Whs is x? The probability?

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.2:( x bar is your mean remember?

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.2we based it off sample mean since we do not have the population mean \(\mu \)

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.2now just solve your z

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Zscore for a 98% confidence interval is 2.33 right?

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.2I didn't solve it, how did you get that ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0In my notes, I copied down a list of the different scores. Yeah, a common value

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.2oaky then use the rest of the formula to get the confidence interval and error

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.2dw:1439415558976:dw

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.2dw:1439415585464:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0isn't .52/10 is .052

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[97.6\pm2.33\times\frac{ .45 }{ \sqrt{100} }\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0And that's for women?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.097.49515 = 97.5 97.70485 = 97.7

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So those were the confidence intervals?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So then what's the margin of error?

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.2you use almost the same formula but without the sample mean

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I'm sorry if I'm being difficult, I'm studying for my final and this is the only section I didn't understand

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So the margin of error is .12116 for men and .10485 for women?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thank you so much for your help, I think I actually get it now :))

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.2btw, what book do you use for statistics?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I'm in Algebra 2 Honors, Statistics is just a couple chapters we cover

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.2if you want a book, which I think you are going to need let me know you will retake this in college again and you should even though you took AP or honors because it is a little more indepth quite intense.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I'm taking Calc and AP Stats next year so if you have any suggestions for books that'd be great

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Please let me know when you have it so I can delete it off of here :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thank you so much! :)

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.2if for some reason you want to use the DVD or video lectures and have difficulty playing them, use MPlayerX program, you won't need to worry about codex or anything to use it and can play almost every video file format known to mankind.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I will probs only use the book, but thank you for everything :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@nincompoop it says I need to rate you or you don't get your "rewards" and that there should be a bell moving around but there is no bell

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.2There is no need to rate me, I am more concerned with you understanding the subject matter. Let us skip that portion for now and try again next time.
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