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I need help with 5,6,7 and question 8. Please write neatly so
I can understand thanks...
Assume that scores on the verbal portion of the GRE (Graduate Record Exam) follow the normal...
Assume that scores on the verbal portion of the GRE (Graduate Record Exam) follow the normal distribution with mean score 151 and standard deviation 7 points, while the quantitative portion of the exam has scores following the normal distribution with mean 153 and standard deviation 7.67. Use this information to answer the following: (Please round to two decimal places) a) Find the score of a student who scored in the 80th percentile on the Quantitative Reasoning section of the exam....
(13 points) Scores on the GRE. A college senior who took the Graduate Record Examination exam...
(13 points) Scores on the GRE. A college senior who took the Graduate Record Examination exam scored 620 on the Verbal Reasoning section and 750 on the Quantitative Reasoning section. The mean score for Verbal Reasoning section was 467 with a standard deviation of 109, and the mean score for the Quantitative Reasoning was 441 with a standard deviation of 155. Suppose that both distributions are nearly normal. Round calculated answers to 4 decimal places unless directed otherwise. 1. Write...
Question 6 (1 point) Solve the problem. When Scholastic Achievement Test scores (SATs) are sent to...
Question 6 (1 point) Solve the problem. When Scholastic Achievement Test scores (SATs) are sent to test-takers, the percentiles associated with scores are also given. Suppose a test-taker scored at the 98th percentile on the verbal part of the test and at the 14th percentile on the quantitative part. Interpret these results. This student performed better than 98% of the other test-takers on the verbal part and better than 14% on the quantitative part. @ This student performed better than...
Please do #8 and explain each step in simple terms so I can understand how to...
Please do #8 and explain each step in simple terms so I can
understand how to do it. Thank you!
you did not know that the aistributioh Was bell-shapea 8) Hope got a 76 on her last test in Psychology. The mean grade was an 82 and the standard deviation was 4 grade points. When she challenged her friend to a computer game, she scored a 4300. The mean score is a 4750 with a standard deviation of 400 points....
1. Suppose the proportion of the population in favor of a new law is 0.60. (a)...
1. Suppose the proportion of the population in favor of a new law is 0.60. (a) Suppose you take a sample of size n = 500. What is the probability that your sample proportion is 0.55 or lower? (b) Suppose that you take a sample of size n = 400 and find the sample proportion ˆp = 0.70. How many standard deviations is ˆp from the mean of the distribution of all sample proportions? 2. A college senior who took...
Please help with 5,6,7, please show your work as well! 10 out of 10 points Question...
Please help with 5,6,7, please show your work as well!
10 out of 10 points Question 1 A population has a mean of 60 and a standard deviation of 30. Samples of size 16 are randomly selected. Calculate the standard deviation of the sample distribution of X. Round off to 3 decimal places. 15 out of 15 points Question 2 Samples of size 16 are drawn from a population. The sampling distribution for X has a standard deviation of 0.25....
PLEASE TYPE DO NOT WRITE THANK YOU! The Graduate Record Examination (GRE) is a test required...
PLEASE TYPE DO NOT WRITE THANK YOU! The Graduate Record Examination (GRE) is a test required for admission to many US graduate schools. Students’ scores on the quantitative portion of the GRE follow a normal distribution with a mean of 150 and a standard deviation of 8.8. In addition to other qualifications, a score of at least 152 is required for admission to a particular graduate school. a) Determine the 80thpercentile of GRE scores b) Determine the GRE scores that...
Please help me answer theses. Thank you on me stuaernts resuits neau trie steps Deiow ald...
Please help me answer theses. Thank you
on me stuaernts resuits neau trie steps Deiow ald compiete each item. Suppose a professor gives an exam to a class of 40 students and the scores are as follows. (Open the Lab 7.2 data set in StatCrunch.) 1. 35 44 46 4747 48 49 51 53 54 55 55 57 57 57 58 59 5959 59 60 60 60 60 60 62 62 62 6468 69 7072 73 7375 75 77 82...
question 4 1. A distribution has a standard deviation of a = 12 points. Find the...
question 4
1. A distribution has a standard deviation of a = 12 points. Find the 2-score for each of the following locations in a distribution by sketching a distribution (do not use an equation). (4 points) a. Above the mean by 4 points b. Below the mean by 6 points c. Below the mean by 18 points 2. A distribution has a standard deviation of a = 5 and u = 30. Find the score for each of the...
For a certain law school, the entering students have an average LSAT score of about 700...
For a certain law school, the entering students have an average LSAT score of about 700 with a standard deviation of about 40. The smoothed density histogram of the LSAT scores appears to follow a normal distribution. Sketch a smoothed density histogram (a bell-shaped curve) of the distributions for the LSAT scores. (For this problem, draw this on your own paper. You will not need to submit this graph.) Because this distribution is approximately normal, the mean is equal to...
(13 points) Scores on the GRE. A college senior who took the Graduate Record Examination exam scored 620 on the Verbal Reasoning section and 750 on the Quantitative Reasoning section. The mean score for Verbal Reasoning section was 467 with a standard deviation of 109, and the mean score for the Quantitative Reasoning was 441 with a standard deviation of 155. Suppose that both distributions are nearly normal. Round calculated answers to 4 decimal places unless directed otherwise. 1. Write...
Question 6 (1 point) Solve the problem. When Scholastic Achievement Test scores (SATs) are sent to test-takers, the percentiles associated with scores are also given. Suppose a test-taker scored at the 98th percentile on the verbal part of the test and at the 14th percentile on the quantitative part. Interpret these results. This student performed better than 98% of the other test-takers on the verbal part and better than 14% on the quantitative part. @ This student performed better than...
Please do #8 and explain each step in simple terms so I can
understand how to do it. Thank you!
you did not know that the aistributioh Was bell-shapea 8) Hope got a 76 on her last test in Psychology. The mean grade was an 82 and the standard deviation was 4 grade points. When she challenged her friend to a computer game, she scored a 4300. The mean score is a 4750 with a standard deviation of 400 points....
Please help with 5,6,7, please show your work as well!
10 out of 10 points Question 1 A population has a mean of 60 and a standard deviation of 30. Samples of size 16 are randomly selected. Calculate the standard deviation of the sample distribution of X. Round off to 3 decimal places. 15 out of 15 points Question 2 Samples of size 16 are drawn from a population. The sampling distribution for X has a standard deviation of 0.25....
Please help me answer theses. Thank you
on me stuaernts resuits neau trie steps Deiow ald compiete each item. Suppose a professor gives an exam to a class of 40 students and the scores are as follows. (Open the Lab 7.2 data set in StatCrunch.) 1. 35 44 46 4747 48 49 51 53 54 55 55 57 57 57 58 59 5959 59 60 60 60 60 60 62 62 62 6468 69 7072 73 7375 75 77 82...
question 4
1. A distribution has a standard deviation of a = 12 points. Find the 2-score for each of the following locations in a distribution by sketching a distribution (do not use an equation). (4 points) a. Above the mean by 4 points b. Below the mean by 6 points c. Below the mean by 18 points 2. A distribution has a standard deviation of a = 5 and u = 30. Find the score for each of the...
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