Direction: Answer the following questions and graph.1. Suppose there are 10, 000 test takers of the IQ test where the meanw=100 and Ihe slarndard devialion o=16.a) What are the raw scores that correspond to each of thefollowing z scores?T. zl2. 7=-13. 2=21. z 2b) How many scores are Ihere above 84?

Answered: Image /qna-images/answer/eb04b775-879f-4b91-bff5-f88ee417a8ef.jpg

Answered: Suppose there are 10, 000 test takers…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Each student in a statistics class was asked to randomly select a number from 1 to 10. The graph below summarizes their choices. The height of the bar above a number indicates the percentage of students in the class that chose that number (the actual percentage is shown above the bar). A) what is the median of all the numbers selected by the students? B) what is the first quartile Q1 of all the numbers selected by the students? What is the third quartile Q3 of all the numbers selected by the students?
40. For a two-tailed test, the p-value is: A) the area under the curve between the mean and the observed value of the sample statistic B) twice the area under the curve between the mean and the observed value of the sample statistic C) the area in the tail under the curve on the side which the sample statistic lies D) twice the area in the tail under the curve on the side which the sample statistic lies
2. A statistic test has a mean of 78 and a standard deviation of 6. a) What is the z-score of a student who scored 89 on the test? b) What is the z-score of a student who scored 64 on the test? c) What is the z-score of a student who scored 78 on the test? d) What is the score of a student whose z-score is 1.24? e) What is the score of a student whose z-score is -.31? f) What is the score of a student whose z-score is -1? 3. For males in a certain towWn, the systolic blood pressure is normally distributed with a mean of 135 and a standard deviation of 8. a) What is the probability that a randomly selected male's systolic blood pressure will be greater than 143? b) What is the probability that a randomly selected male's systolic blood pressure will be less than 119?
6. A kinesiologist wanted to examine the effects of temperature and humidity on exercise performance. Each participant was asked to walk on a treadmill at a normal pace for 60 minutes, and the kinesiologist recorded the distance walked (miles). She assigned participants to one of 4 conditions that varied in temperature (normal or high) and humidity (normal or high). Mean distance walked by the four groups are shown in the table below. Assume a = .05 and Tukey HSD = 0.39. Normal temperature High temperature Normal humidity M = 3.00 M = 2.80 High humidity M = 2.80 M = 2.00 Complete the following conclusion: The factorial ANOVA revealed significant main effects of temperature [F (1, 24) = 25.00, p<.05] and humidity [F (1, 24) = 19.65, p<.05] and a significant Temperature x Humidity interaction [F (1, 24) = 9.25, p < .05].
29. What is the z-score corresponding to P84 z = three decimal places
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1. In a distribution of six scores, the deviations from the mean for five of the scores are +5, +3, +1, 0, and-3.What is the value of the deviation for the sixth score? 2. On the midterm exam in their anthropology course, Jan’s deviation score was +5, Kim’s was -12, andLeslie’s was 0.a) of these three, who did the best and who did the worst?b) the mean for the class was 80. What was the raw score for Jan, Kim, and Leslie?
1) The distribution of vocabulary scores for seventh-graders in Indiana is N(6.84, 1.552). a) Sketch a normal curve for this distribution of vocabulary scores. Label the points that are 1, 2, and 3 standard deviations from the mean. b) What percent of the vocabulary scores are less than 3.74? c) What percent of scores are between 5.29 and 9.94?
The first blank for both questions is: "estimate of the standard ('distance' or 'score' or 'mean')" Second blanks: "...between a ('sample mean' or 'sample mean difference' or 'score')" Third Blanks: "...and the ('population mean difference' or 'population mean' or sample mean')" The choices are the same for the corresponding blanks, first, second and third.
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A grading scale is set up for 1000 students’ test scores. It is assumed that the scores are normally distributed with a mean score of 75 and a standard deviation of 15. show your process to get full credits. a) How many students will have scores between 50 and 70? b) If 84.1% of students pass the test, what was the minimum passing score?

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Suppose there are 10, 000 test takers of the IQ test where the mean p=100 and Ihe standard devialiorı o=16, a) What are the raw scares that correspond to each of the Tollowing z scores? 2. 7=-1 3. 2=2