Mathematics, 18.06.2020 07:57, bponce06

The mean SAT score in mathematics, mean, is 529. The standard deviation of these scores is 28. A special preparation course claims that its graduates will score higher, on average, than the mean score 529. S random sample of 150 students completed the course, and their mean SAT score in mathematics was 531. At the 0.1 level of significance, can we conclude that the preparation course does what it claims? Assume that the standard deviation of the scores of course graduates is also 28.

Answers: 1

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 12:30, AreYouMyNewDad

In djkl, side jk measures 10.6 inches, side kl measures 7 inches, and side jl measures 5 inches. based on the information that is provided, which could be a correct set of angle measures for these sides? angle j = 23.2°, angle k = 33.5°, angle l = 23.2° angle j = 23.2°, angle k = 33.5°, angle l = 123.2° angle j = 123.2°, angle k = 23.2°, angle l = 33.5° angle j = 33.5°, angle k = 23.2°, angle l = 123.2°

Answers: 1

continue

Mathematics, 21.06.2019 18:30, dkdk31

Find the value. a. 0.003 b. 0.03 c. 0.3 d. 3

Answers: 1

continue

Mathematics, 21.06.2019 23:00, kezin

Ineed to know the ordered pairs for this equation i need the answer quick because it’s a timed test

Answers: 1

continue

Mathematics, 21.06.2019 23:30, medusa36

Solve the following: 12(x^2–x–1)+13(x^2–x–1)=25(x^2–x–1) 364x–64x=300x