A student takes two math abilities tests, the data from which are as follows: Test...
A student takes two math abilities tests, the data from which are as follows:
Test A Test B
X=78 X=82
µ = 100 µ =140
σ = 20 σ = 25
On which test did the student do better? Show your work.
Homework Answers
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A student takes two math
abilities tests, the data from which are as follows:
Test...
Two placement exams are available that students can take to determine which math class they should...
Two placement exams are
available that students can take to determine which math class they
should begin with in their freshman year. It is believed that there
is no difference in the mean scores that would be received for the
two tests. To test this using a 0.05 level of significance, a
randomly selected group of students took both tests and had their
scores recorded. The following data were obtained: Student Test A
Test B 1 78 82 2 86...
Two placement exams are available that students can take to determine which math class they should...
Two placement exams are available that students can take to determine which math class they should begin with in their freshman ye. It is believed that there is no difference in the mean scores that would be received for the two tests. To test this using a 0.05 level of significance, a randomly selected group of students took both tests and had their scores recorded the following data were obtained Student Test A Test B 1 78 2 74 3...
Please answer all questions! thanks :) VI/ Test scores from a math midterm are as follows:...
Please
answer all questions! thanks :)
VI/ Test scores from a math midterm are as follows: 79, 90, 85, 89, 70, 59, 75, 64, 83, 78, 75, 77, 78, 77, 67, 85, 74, 52, 87, 72, 69, 76, 61, 77, 93, 86, 79, 90, 74, 67, 51, 75, 77, 82, 78, 60, 86, 72, 91, 95, 82 Complete the frequency distribution table to include all data a. Class Tallies Class Midpoint Relative Cumulative Frequency relative freq boundaries Frequency 51 57...
Show work solution. If a student scored 1268 on the SAT test which has a mean...
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The table shows a student's record of performance on five tests. On which test did the...
The table shows a student's record of performance on five tests. On which test did the student rank the highest in relation to the other students in class? (assume that the test scores on each test are normally distributes.) Explain and show your answer. Test Number Student's Score Class Mean Class Standard Deviation 1 85 76 3 2 87 89 7 3 94 88 4 4 88 80 6 5 82 72 5
In what follows use any of the following tests/procedures: Regression, confidence intervals, one-sided t-test, or two-sided...
In what follows use any of the following tests/procedures: Regression, confidence intervals, one-sided t-test, or two-sided t-test. All the procedures should be done with 5% P-value or 95% confidence interval. Open Weight_vs_IQ data. SETUP: Common sense dictates that a person’s IQ and Weight should not be related. However, one never knows until one examines the data. Given the data (IQ and weight for 29 students) your job is to check if the common sense assumption is reasonable or maybe it...
subjects were used in this second study? 2. Six students were given a test at the...
subjects were used in this second study? 2. Six students were given a test at the beginning of the school year and again, 3 months later. The purpose of the testing was to assess the extent to which their scores improved as a result of the course work they had done during the 3 months. Their scores on the two tests (each out of 100) are as follows: First Test Second Test 72 82 65 74 69 78 80 68...
8. A student scores 56 on a geography test and 285 on a mathematics test. The...
8. A student scores 56 on a geography test and 285 on a mathematics test. The geography test has a mean of 80 and a standard deviation of 20. The mathematics test has a mean of 300 and a standard deviation of 10. If the data for both tests are normally distributed, on which test did the student score better relative to the other students in each class? (You must show proper work to receive credit on this problem) 9....
A standardized exam consists of three parts: math, writing, and critical reading. Sample data showing the...
A standardized exam consists of three parts: math, writing, and critical reading. Sample data showing the math and writing scores for a sample of 12 students who took the exam follow. Student Writing Math 540 432 474 374 612 420 526 610 615 SAS 11 12 390 593 335 513 (a) Use a 0.05 level of significance and test for a difference between the population mean for the math scores and the population mean for the writing scores. (Use math...
Us the following means and standard deviations: for ACT, µ=21, σ=3 and for SAT, µ=500, σ=100. (a) You take the ACT test...
Us the following means and standard deviations: for ACT, µ=21, σ=3 and for SAT, µ=500, σ=100. (a) You take the ACT test and the SAT test. You get a 24 on the ACT and a 660 on the SAT. The college that you apply to only needs one score. Which do you want to send them (that is, which score is better: 24 or 660)? Why? (b) What is the probability of having an ACT score of 20 or less?...
Two placement exams are
available that students can take to determine which math class they
should begin with in their freshman year. It is believed that there
is no difference in the mean scores that would be received for the
two tests. To test this using a 0.05 level of significance, a
randomly selected group of students took both tests and had their
scores recorded. The following data were obtained: Student Test A
Test B 1 78 82 2 86...
Two placement exams are available that students can take to determine which math class they should begin with in their freshman ye. It is believed that there is no difference in the mean scores that would be received for the two tests. To test this using a 0.05 level of significance, a randomly selected group of students took both tests and had their scores recorded the following data were obtained Student Test A Test B 1 78 2 74 3...
Please
answer all questions! thanks :)
VI/ Test scores from a math midterm are as follows: 79, 90, 85, 89, 70, 59, 75, 64, 83, 78, 75, 77, 78, 77, 67, 85, 74, 52, 87, 72, 69, 76, 61, 77, 93, 86, 79, 90, 74, 67, 51, 75, 77, 82, 78, 60, 86, 72, 91, 95, 82 Complete the frequency distribution table to include all data a. Class Tallies Class Midpoint Relative Cumulative Frequency relative freq boundaries Frequency 51 57...
subjects were used in this second study? 2. Six students were given a test at the beginning of the school year and again, 3 months later. The purpose of the testing was to assess the extent to which their scores improved as a result of the course work they had done during the 3 months. Their scores on the two tests (each out of 100) are as follows: First Test Second Test 72 82 65 74 69 78 80 68...
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A standardized exam consists of three parts: math, writing, and critical reading. Sample data showing the math and writing scores for a sample of 12 students who took the exam follow. Student Writing Math 540 432 474 374 612 420 526 610 615 SAS 11 12 390 593 335 513 (a) Use a 0.05 level of significance and test for a difference between the population mean for the math scores and the population mean for the writing scores. (Use math...
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