You score a 93 on Exam 1 which has a mean of 55 and a standard...
You score a 93 on Exam 1 which has a mean of 55 and a standard deviation of 16. Then you score 687 on Exam 2 with a mean of 493 and a standard deviation of 150.
(Round numerical answers to one decimal place)
a) How many standard deviations are you away from the mean on Exam 1?
b) Which score is better? (Click to select) The score of 93 The score of 687 Both scores have the same relative position Unable to determine with given information
Homework Answers
You score a 105 on Exam 1 which has a mean of 30 and a standard...
You score a 105 on Exam 1 which has a mean of 30 and a standard deviation of 28. Then you score 675 on Exam 2 with a mean of 493 and a standard deviation of 150. (Round numerical answers to one decimal place) a) How many standard deviations are you away from the mean on Exam 1? b) Which score is better? (Click to select)The score of 105The score of 675Both scores have the same relative positionUnable to determine...
The scores on a psychology exam were normally distributed with mean of 55 and a standard...
The scores on a psychology exam were normally distributed with mean of 55 and a standard deviation of 5. A failing grade on the exam was anything 2 or more standard deviations below the mean. What was the cutoff for a failing score? Approximately what percentage of the students failed? The cutoff for a failing score was 45. (Simplify your answer.) Approximately percent of the students failed. (Round to one decimal place as needed.)
The mean exam score for 44 male high school students is 20.1 and the population standard...
The mean exam score for 44 male high school students is 20.1 and the population standard deviation is 4.7. The mean exam score for 58 female high school students is 19.6 and the population standard deviation is 4.1. At a = 0.01, can you reject the claim that male and female high school students have equal exam scores? Complete parts (a) through (e). Click here to view page 1 of the standard normal distribution table. Click here to view page...
11. A distribution of exam scores has a mean of μ = 78. a.If your score...
11. A distribution of exam scores has a mean of μ = 78. a.If your score is X = 70, which standard deviation would give you a better grade: σ = 4 or σ = 8? Answer: ________________ b.If your score is X = 80, which standard deviation would give you a better grade: σ = 4 or σ = 8? Answer: ___________________ 12. For each of the following, identify the exam score that should lead to the better grade....
The mean score on a college placement exam is 550 with a standard deviation of 150....
The mean score on a college placement exam is 550 with a standard deviation of 150. If the scores vary normally, 90% of the test takers score above which score? Question 3 options: 358 742 886 336
14. On an exam with a mean of μ = 70, you have a score of...
14. On an exam with a mean of μ = 70, you have a score of X = 75. Which of the following values for the standard deviation would give you the highest position within the class? Hint: Graph the mean and figure out which standard deviation makes the most sense for getting a high score. How far away from the mean do we want the score of 75 to be? a. σ = 1 b. σ = 5 c....
The scores on a psychology exam were normally distributed with a mean of 55 and a...
The scores on a psychology exam were normally distributed with a mean of 55 and a standard deviation of 9. What is the standard score for an exam score of 41? The standard score is . (Round to the nearest hundredth as needed.)
In standardizing an examination, the average score on the exam must be known in order to...
In standardizing an examination, the average score on the exam
must be known in order to differentiate among examinees taking the
examination. The scores recorded for a sample of 93 examinees
yielded a mean and a standard deviation of 67.5 and 8.2,
respectively. Estimate the true mean score for this examination and
calculate the margin of error in estimation.
a.) μ =
b.) σ x ¯ =
c.) margin of error = ±
In standardizing an examination, the average score...
Find the indicated score. The graph depicts the standard normal distribution with mean and standard deviation...
Find the indicated score. The graph depicts the standard normal distribution with mean and standard deviation 1 Click to view page 1o the table Click to view page of the The indicated z score is Round to two decimal places as needed Find the area of the shaded region. The graph to the right depicts I scores of adults and those scores we normally distributed with a mean of 100 and a standard deviation of 15 Click to view.age 1...
Determine which score corresponds to the higher relative position. 25) Which is better, a score of...
Determine which score corresponds to the higher relative position. 25) Which is better, a score of 92 on a test with a mean of 71 and a standard deviation of 15, or a Score of 688 on a test with a mean of 493 and a standard deviation of 150? Use the empirical rule to solve the problem. 26) The systolic blood pressure of 18-year-old women is normally distributed with a mean of 120 mmHg and a standard deviation of...
The scores on a psychology exam were normally distributed with mean of 55 and a standard deviation of 5. A failing grade on the exam was anything 2 or more standard deviations below the mean. What was the cutoff for a failing score? Approximately what percentage of the students failed? The cutoff for a failing score was 45. (Simplify your answer.) Approximately percent of the students failed. (Round to one decimal place as needed.)
The mean exam score for 44 male high school students is 20.1 and the population standard deviation is 4.7. The mean exam score for 58 female high school students is 19.6 and the population standard deviation is 4.1. At a = 0.01, can you reject the claim that male and female high school students have equal exam scores? Complete parts (a) through (e). Click here to view page 1 of the standard normal distribution table. Click here to view page...
The scores on a psychology exam were normally distributed with a mean of 55 and a standard deviation of 9. What is the standard score for an exam score of 41? The standard score is . (Round to the nearest hundredth as needed.)
In standardizing an examination, the average score on the exam
must be known in order to differentiate among examinees taking the
examination. The scores recorded for a sample of 93 examinees
yielded a mean and a standard deviation of 67.5 and 8.2,
respectively. Estimate the true mean score for this examination and
calculate the margin of error in estimation.
a.) μ =
b.) σ x ¯ =
c.) margin of error = ±
In standardizing an examination, the average score...
Find the indicated score. The graph depicts the standard normal distribution with mean and standard deviation 1 Click to view page 1o the table Click to view page of the The indicated z score is Round to two decimal places as needed Find the area of the shaded region. The graph to the right depicts I scores of adults and those scores we normally distributed with a mean of 100 and a standard deviation of 15 Click to view.age 1...
Determine which score corresponds to the higher relative position. 25) Which is better, a score of 92 on a test with a mean of 71 and a standard deviation of 15, or a Score of 688 on a test with a mean of 493 and a standard deviation of 150? Use the empirical rule to solve the problem. 26) The systolic blood pressure of 18-year-old women is normally distributed with a mean of 120 mmHg and a standard deviation of...
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