Mathematics, 31.01.2022 01:30 glo251
A test has a mean grade of 75 with standard deviation of 5. The distribution of test grades is normal. What percent of the test grades are below 60?
Joe wants to find a 90% confidence interval for his mean running time for his usual route. He has sample data for 30 days of running. The mean time for the 30 days is 22 minutes with standard deviation of 2 minutes. What is the 90% confidence interval of his overall mean running time?
What is the margin of error for a 98% confidence interval if we have a sample mean of 50, sample standard deviation of 6, and a sample size of 100?
Find the boundaries of the middle 70% of the data in a normal distribution that has a mean of 40 and standard deviation of 4.
What proportion of the prices of a pair of sneakers are above $150 if the mean price is $95 and the standard deviation is $15. Assume the prices are nor
Answers: 1
Another question on Mathematics
Mathematics, 21.06.2019 19:40
Aretha wanted to gather data about the cost of local bowling leagues in her area. she plotted the data and determined that the average bowling league costs consist of a one-time registration fee and a monthly fee modeled by the equation y = 15x + 20. identify and interpret the y-intercept in this model. the y-intercept is 20. this is the cost per month. the y-intercept is 20. this is the cost of registration. the y-intercept is 15. this is the cost of registration. the y-intercept is 15. this is the cost per month.
Answers: 1
Mathematics, 21.06.2019 20:00
M the table below represents a linear function f(x) and the equation represents a function g(x): x f(x)−1 −50 −11 3g(x)g(x) = 2x − 7part a: write a sentence to compare the slope of the two functions and show the steps you used to determine the slope of f(x) and g(x). (6 points)part b: which function has a greater y-intercept? justify your answer. (4 points)
Answers: 3
Mathematics, 21.06.2019 20:30
East black horse $0.25 total budget is $555 it'll cost $115 for other supplies about how many flyers do you think we can buy
Answers: 1
Mathematics, 21.06.2019 22:00
Rewrite so the subject can be y in the formula d=m-y/y+n
Answers: 1
You know the right answer?
A test has a mean grade of 75 with standard deviation of 5. The distribution of test grades is norma...
Questions
English, 14.04.2020 21:18
Mathematics, 14.04.2020 21:18
English, 14.04.2020 21:19
Biology, 14.04.2020 21:19
Mathematics, 14.04.2020 21:19
