subject
Mathematics, 21.05.2020 05:09 juanitarodrigue

A math teacher claims that she has developed a review course that increases the scores of students on the math portion of a college entrance exam. Based on data from the administrator of the exam, scores are normally distributed with mu equalsμ=522522. The teacher obtains a random sample of 20002000 students, puts them through the review class, and finds that the mean math score of the 20002000 students is 527527 with a standard deviation of 110110. Complete parts (a) through (d) below. (a) State the null and alternative hypotheses. Let muμ be the mean score. Choose the correct answer below. A. Upper H 0 : mu equals 522H0: μ=522, Upper H 1 : mu not equals 522H1: μ≠522 B. Upper H 0 : mu less than 522H0: μ<522, Upper H 1 : mu greater than 522H1: μ>522 C. Upper H 0 : mu greater than 522H0: μ>522, Upper H 1 : mu not equals 522H1: μ≠522 D. Upper H 0 : mu equals 522H0: μ=522, Upper H 1 : mu greater than 522

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 12:30
If an x intercept only touches the x axis it means it has a multiplicity of 2. if an intercept goes through the axis it has a multiplicity of 1 true false
Answers: 1
question
Mathematics, 21.06.2019 13:30
Which function is represented by the graph
Answers: 2
question
Mathematics, 21.06.2019 16:30
What are “like terms”? why can we only add like terms?
Answers: 1
question
Mathematics, 21.06.2019 18:30
What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)
Answers: 1
You know the right answer?
A math teacher claims that she has developed a review course that increases the scores of students o...
Questions
Questions on the website: 13722361