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Mathematics 10 Online
OpenStudy (anonymous):

PLEASE EXPLAIN AND TEACH/ FAN+MEDAL Carlisle conducted an experiment to determine if the there is a difference in mean body temperature for men and women. He found that the mean body temperature for men in the sample was 97.9 with a population standard deviation of 0.57 and the mean body temperature for women in the sample was 98.6 with a population standard deviation of 0.55. Assuming the population of body temperatures for men and women is normally distributed, calculate the 99% confidence interval and the margin of error for the mean body temperature for both men and women.

OpenStudy (anonymous):

Using complete sentences, explain what these confidence intervals mean in the context of the problem.

OpenStudy (dan815):

complete sentences eh

OpenStudy (anonymous):

more of a brief statement would be fine xD but i want to learn aswell

OpenStudy (dan815):

A confidence interval is the interval that a certain event occurs, you need a certain precision associated with it, like 99% confidence interval means you are sure that 99% of the time your event occurs in this interval.

OpenStudy (anonymous):

okay.

OpenStudy (anonymous):

oh wait thats what its asking for.....

OpenStudy (dan815):

yes

OpenStudy (dan815):

you need to find the standard deviation that will cover 99% of the probable body temperatures

OpenStudy (anonymous):

help o.o i dunno Learning part xD

OpenStudy (dan815):

okay well i have to ask you this first.. what grade are you in

OpenStudy (anonymous):

11

OpenStudy (dan815):

because you can either use numerical integration or tables

OpenStudy (anonymous):

easiest way please

OpenStudy (dan815):

okay then I think they expect you to just use the tables for standard deviation

OpenStudy (anonymous):

thats poop .

OpenStudy (dan815):

your text book should have it on the last pages

OpenStudy (anonymous):

i actually do online school.

OpenStudy (dan815):

a Z table or a standard deviation table and the percentages invovled

OpenStudy (anonymous):

yes i have a z chart

OpenStudy (dan815):

okay so find what Z value you need for 99%

OpenStudy (anonymous):

so id go to 1 right?

OpenStudy (anonymous):

.16109

OpenStudy (dan815):

no its gonna be like atleast more than 2 standard deviation

OpenStudy (dan815):

i dont have a z score table

OpenStudy (dan815):

you have to get your Z value and calcuate the temp Z= (Temp - Mean Temp )/Standard Deviation

OpenStudy (dan815):

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