subject
Mathematics, 11.11.2019 20:31 FailingstudentXD

Sophia who took the graduate record examination (gre) scored 160 on the verbal reasoning section and 157 on the quantitative reasoning section. the mean score for verbal reasoning section for all test takers was 151 with a standard deviation of 7, and the mean score for the quantitative reasoning was 153 with a standard deviation of 7.67. suppose that both distributions are nearly normal.(a) write down the short-hand for these two normal distributions.(b) what is sophia’s z-score on the verbal reasoning section? on the quantitative reasoningsection? draw a standard normal distribution curve and mark these two z-scores.(c) what do these z-scores tell you? (d) relative to others, which section did she do better on? (e) find her percentile scores for the two exams.(f) what percent of the test takers did better than her on the verbal reasoning section? on thequantitative reasoning section? (g) explain why simply comparing raw scores from the two sections could lead to an incorrectconclusion as to which section a student did better on.(h) if the distributions of the scores on these exams are not nearly normal, would your answers toparts (b) - (f) change? explain your reasoning.

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 16:10
A) if $50000 is invested in a bank account that pays 9.3% of interest compounded on a six-monthly basis, how much money will be in the account after 3 and 12 years? b) if matusalen's father had put $2.0 in the bank when he was born and there, how long would matusalen have had to his death (969 years later) if the interest was 7% per year composed each month and weekly?
Answers: 1
question
Mathematics, 21.06.2019 19:30
Vinay constructed this spinner based on the population of teachers at his school according to vinays model what is the probability that he will have a male history teacher two years in a row
Answers: 3
question
Mathematics, 21.06.2019 20:00
Choose the linear inequality that describes the graph. the gray area represents the shaded region. a: y ≤ –4x – 2 b: y > –4x – 2 c: y ≥ –4x – 2 d: y < 4x – 2
Answers: 2
question
Mathematics, 21.06.2019 21:30
Answer! if you don’t mind, can you explain
Answers: 1
You know the right answer?
Sophia who took the graduate record examination (gre) scored 160 on the verbal reasoning section and...
Questions
question
History, 07.10.2019 13:50
question
Biology, 07.10.2019 13:50
question
Mathematics, 07.10.2019 13:50