Mathematics, 30.09.2019 04:00 mg0508092
Scores on an exam follow an approximately normal distribution with a mean of 76.4 and a standard deviation of 6.1 points. what is the minimum score you would need to be in the top 5%?
Answers: 1
is the mean and 
is the standard deviation.It measures how many standard deviations the measure is from the mean. Each z-score has an associated p-value, which is the percentile of the measure X.
Standard deviation of 6.1, thus 
The top 5% is at least the 100 - 5 = 95th percentile, which is X when Z has a p-value of 0.95, so X when Z = 1.645.
is such that
, which means the cutoff score must be around
Another question on Mathematics
Mathematics, 21.06.2019 21:00
To finance her community college education, sarah takes out a loan for $2900. after a year sarah decides to pay off the interest, which is 4% of $2900. how much will she pay
Answers: 1
Mathematics, 21.06.2019 22:00
Determine if the equation defines y as a function of x: 2xy = 1. yes o no
Answers: 2
Mathematics, 21.06.2019 22:10
Which expression and diagram represent “renee biked four times as far this month as last month”?
Answers: 1
You know the right answer?
Scores on an exam follow an approximately normal distribution with a mean of 76.4 and a standard dev...
Questions
Mathematics, 05.01.2021 05:10
Mathematics, 05.01.2021 05:10
History, 05.01.2021 05:10
Mathematics, 05.01.2021 05:10
History, 05.01.2021 05:10
History, 05.01.2021 05:10
English, 05.01.2021 05:10
History, 05.01.2021 05:10
Mathematics, 05.01.2021 05:20
Mathematics, 05.01.2021 05:20
Mathematics, 05.01.2021 05:20
Mathematics, 05.01.2021 05:20
Mathematics, 05.01.2021 05:20
Mathematics, 05.01.2021 05:20
Mathematics, 05.01.2021 05:20
History, 05.01.2021 05:20
