Mathematics, 28.01.2021 21:00 meaddestinee

A teacher predicts what the distribution of grades on the final exam will be and they are recorded in the table below. Grade Proportion A 0.25 B 0.30 C 0.35 D 0.10 The actual distribution for a class of 20 is in the table below. Grade Frequency A 7 B 7 C 5 D 1 State the null and alternative hypotheses. H0: The observed class grades do not fit the expected grades. Ha: The observed class grades fit the expected grades. H0: The distribution of frequency for each grade is the same. Ha: The distribution of frequency for each grade is not the same. H0: The distribution of frequency for each grade is not the same. Ha: The distribution of frequency for each grade is the same. H0: The observed class grades fit the expected grades. Ha: The observed class grades do not fit the expected grades.

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 16:30, itsdeevv

You drop a rubber ball off the roof of a 50 meter high building onto a paved parking lot. it bounces back up with every bounce, but not quite all the way back up to you. after the first bounce it bounces back only 80 percent of the distance it was dropped from. the pattern continues, meaning after every bounce it comes up to just 80 percent of the previous maximum height. so if before the first bounce the height is 50 meters, what height does the ball reach after the fifth bounce? round your answer to one decimal place and chose the correct response from the choices below:

Answers: 1

continue

Mathematics, 21.06.2019 17:00, alexabdercmur

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?

Answers: 2

continue

Mathematics, 21.06.2019 17:00, christiancase06

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

Answers: 1

continue

Mathematics, 21.06.2019 21:50, jak000067oyyfia

Which rule describes the composition of transformations that maps ajkl to aj"k"l"? ro. 900 o to, -2(x, y) to, -20 ro, 900(x, y) ro, 9000 t-2. o(x, y) t-2, 00 ro, 900(x, y)

Answers: 2

continue

You know the right answer?

A teacher predicts what the distribution of grades on the final exam will be and they are recorded i...