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carolinar7
 one year ago
What is the positive zscore of 3.75
carolinar7
 one year ago
What is the positive zscore of 3.75

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Take a look at the zscore chart.

dan815
 one year ago
Best ResponseYou've already chosen the best response.0zscore is telling you how many standard deviations you are away

carolinar7
 one year ago
Best ResponseYou've already chosen the best response.0A field test for a new exam was given to randomly selected seniors. The exams were graded, and the sample mean and sample standard deviation were calculated. Based on the results, the exam creator claims that on the same exam, nine times out of ten, seniors will have an average score within 5% of 75%. Is the confidence interval at 90%, 95%, or 99%? What is the margin of error? Calculate the confidence interval and explain what it means in terms of the situation.

carolinar7
 one year ago
Best ResponseYou've already chosen the best response.0Ya I know but It only goes up to 3.4

dan815
 one year ago
Best ResponseYou've already chosen the best response.0you can actually use a integral formula to find out the probability there

carolinar7
 one year ago
Best ResponseYou've already chosen the best response.0Ok but im finding the zscore for the question above that may help

dan815
 one year ago
Best ResponseYou've already chosen the best response.09/10 is same as 90/100 = 90%

carolinar7
 one year ago
Best ResponseYou've already chosen the best response.0or you can simply help me solve it

carolinar7
 one year ago
Best ResponseYou've already chosen the best response.0oh so that is the confidense interval?

dan815
 one year ago
Best ResponseYou've already chosen the best response.0yes 90% confidence interval is giving you the interval for the xmin and xmax where there is 90% of the proablity so the interval [5,75] is 90% of the population

carolinar7
 one year ago
Best ResponseYou've already chosen the best response.0I got (753.75)% and (75+3.75)% for error thing am I right

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0use excel function = NORMSDIST(Zvalue)

carolinar7
 one year ago
Best ResponseYou've already chosen the best response.0Is 3.75 the z value though @dan815

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0My bad m8 I dont know how to do this

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@frankwillfindyou Hi fellow doge
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