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 14:30
Which functions are even? check all of the boxes that apply. f(x) = x4 – x? f(x) = x2 – 3x + 2 f(x) = (x - 2) f(x) = x done
Answers: 3
Mathematics, 21.06.2019 21:00
How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?
Answers: 3
Mathematics, 21.06.2019 23:30
Atruck can be rented from company a $50 a day plus $0.60 per mile. company b charges $20 a day plus $0.80 per mile to rent the same truck. find the number of miles in a day at which the rental costs for company a and company b are the same
Answers: 1
Mathematics, 22.06.2019 00:00
The amount of data left on the cell phone six gb for 81.5 gb of data is used how much data is available at the beginning of the cycle
Answers: 2
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, 30.11.2020 18:30
English, 30.11.2020 18:30
English, 30.11.2020 18:30
English, 30.11.2020 18:30
English, 30.11.2020 18:30
