Mathematics, 12.09.2019 05:30, nesa10

Aconsumer electronics company is comparing the brightness of two different types of led screens for use in its television sets. screen type a has mean brightness of 75 and standard deviation of 8, while screen type b has mean brightness of 70 and standard deviation of 12. a random sample size 36 is selected from screen type a where the sample size for screen type b is 25. find the approximate probability that x¯ a − x¯ b exceeds 4?

Answers: 1

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 16:00, kissesforlester7097

Given right triangle xyz, which correctly describes the locations of the sides in relation to

Answers: 1

continue

Mathematics, 21.06.2019 17:30, yurimontoya759

Which of the following is true about the graph of f(x)=7^x. select all that apply. a= it intercepts the x axis b=it intercepts both axis c=it intercepts neither d=it intercepts the y axis

Answers: 1

continue

Mathematics, 21.06.2019 17:30, hunterthompson2

Write an expression that has three terms and simplifies to 4x - 7. identify the coefficient(s) and constant(s) in your expression

Answers: 1

continue

Mathematics, 21.06.2019 18:10, lupitasalas9283

Josh has a rewards card for a movie theater he receives 15 points for becoming a rewards card holder he earns 3.5 points for each visit to the movie theater he needs at least 55 points to earn a free movie ticket which inequality can josh use to determine x, the minimum number of visits he needs to earn his first free movie ticket.

Answers: 1

continue

Do you know the correct answer?

Aconsumer electronics company is comparing the brightness of two different types of led screens for...