Mathematics, 08.11.2019 01:31 daydallas01
Estimating mean sat math score the sat is the most widely used college admission exam. (most community colleges do not require students to take this exam.) the mean sat math score varies by state and by year, so the value of µ depends on the state and the year. but let’s assume that the shape and spread of the distribution of individual sat math scores in each state is the same each year. more specifically, assume that individual sat math scores consistently have a normal distribution with a standard deviation of 100. an educational researcher wants to estimate the mean sat math score (μ) for his state this year. the researcher chooses a random sample of 666 exams in his state. the sample mean for the test is 497. find the 99% confidence interval to estimate the mean sat math score in this state for this year. (note: the critical z -value to use, z c , is: 2.576.) ( , ) your answer should be rounded to 3 decimal places.
Answers: 2
Mathematics, 21.06.2019 17:00
Find dy/dx using implicit differentiation ln(20+e^xy)=y
Answers: 3
Mathematics, 21.06.2019 20:00
Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 + 4x + 5 = 0
Answers: 2
Mathematics, 22.06.2019 02:00
Bag a contains 3 white marveled and 2 marbles bag b contains 6 white marbles and 3 red marbles a person draws one marbles from each bag find the probability that both marbles are white
Answers: 1
Estimating mean sat math score the sat is the most widely used college admission exam. (most communi...
Mathematics, 10.11.2019 22:31
Mathematics, 10.11.2019 22:31
English, 10.11.2019 22:31
Business, 10.11.2019 22:31
Social Studies, 10.11.2019 22:31
Social Studies, 10.11.2019 22:31
Mathematics, 10.11.2019 22:31
English, 10.11.2019 22:31
Mathematics, 10.11.2019 22:31
Spanish, 10.11.2019 22:31