Q1. On any given evening many high school students are on the phone especially the students...
Q1. On any given evening many high school students are on the phone especially the students taking math. Of all the Math students is 60% are ninth graders and 40% are tenth graders On a given evening 80% of these ninth graders are on the phone and only 50% are of these tenth graders are on the phone. If all Math students are not on the phone, What is the probability that the students are tenth graders?
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Q1. On any given evening many high school students are on the
phone especially the students...
8. In one high school class (75 students) the following information on courses they were enrolled...
8. In one high school class (75 students) the following information on courses they were enrolled in was obtained: Use a Venn diagram and answer the following questions. # of students Students taking Math class Literature class History class Both Math and History Both History and Literature Both Math and Literature Taking all three classes by C hloor ons GA How many students did not like any of these three classes? 15 How many students have only taken math? 26...
An exam is given to all senior high school students, the standard deviation for all the...
An exam is given to all senior high school students, the standard deviation for all the students is given as 30. The average score for 40 students on the exam is 250. Assume the means to be measured to any degree of accuracy (assume that scores are Gaussian distributed). (a) Find the 95% confidence interval (CI) for the average score of all students taking the exam. (b) Find the prediction interval for the score of the next student chosen at...
An exam is given to all senior high school students, the standard deviation for all the...
An exam is given to all senior high school students, the standard deviation for all the students is given as 30. The average score for 40 students on the exam is 250. Assume the means to be measured to any degree of accuracy (assume that scores are Gaussian distributed). (a) Find the 95% confidence interval (CI) for the average score of all students taking the exam. (b) Find the prediction interval for the score of the next student chosen at...
SORU 1 An exam is given to all senior high school students, the standard deviation for...
SORU 1 An exam is given to all senior high school students, the standard deviation for all the students is given as 30. The average score for 50 students on the exam is 540. Assume the means to be measured to any degree of accuracy assume that scores are Gaussian distributed Find the 90s confidence interval (C) for the average score of all students taking the exam, Find the prediction interval for the score of the next student chosen at...
An exam is given to all senior high school students, the standard deviation for all the...
An exam is given to all senior high school students, the standard deviation for all the students is given as 30. The average score for 50 students on the exam is 540. ASS the means to be measured to any degree of accuracy (assume that scores are Gaussian distributed). (a) Find the 90% confidence interval (CI) for the average score of all students taking the exam. (b) Find the prediction interval for the score of the next student chosen at...
QUESTION 1 An exam is given to all senior high school students, the standard deviation for...
QUESTION 1 An exam is given to all senior high school students, the standard deviation for all the students is given as 30. The average score for 40 students on the exam is 250. Assume the mea measured to any degree of accuracy (assume that scores are Gaussian distributed). (a) Find the 95% confidence interval (CI) for the average score of all students taking the exam. (b) Find the prediction interval for the score of the next student chosen at...
U.S. schools face an ongoing challenge: as students get closer to high school graduation, their enthusiasm...
U.S. schools face an ongoing challenge: as students get closer to high school graduation, their enthusiasm for school falls. A Gallup poll in June 2017 has discovered that fifth graders are most engaged with school, while 11th graders are least. The latest Gallup poll showed that only 32% of 11th graders are engaged in school. Assume this value represents the population proportion. Suppose we randomly sample 150 11th graders in the U.S. and ask them their engagement in school. ?...
The data below was collected from random samples of high school students in various counties given...
The data below was collected from random samples of high school students in various counties given a new standardized test in science. SCORES LOCATION Fresno County L.A. County Kern County Sacramento County Fail Low Pass Pass High Pass 30 60 70 150 15 40 50 80 150 400 90 250 75 80 30 50 13.What sort of scale of measurement was used to record the scores of the students(Nominal, ordinal, interval or ratio)? 14.What sort of variable is represented by...
QUESTION 1 An exam is given to all senior high school students, the standard deviation for...
QUESTION 1 An exam is given to all senior high school students, the standard deviation for all the students is given as 30. The average score for 25 students on the exam is 440. Assume the means to be measured to any degree of accuracy (assume that scores are Gaussian distributed). (a) Find the 98% confidence interval (CI) for the average score of all students taking the exam. (b) Find the prediction interval for the score of the next student...
High school students are given a standardized college preparedness test and their scores are recorded. The...
High school students are given a standardized college preparedness test and their scores are recorded. The next week they spend several days learning test-taking techniques. They are then given another standardized test and their scores are recorded again. Which statistical procedure will test the effectiveness of the test-taking technique instruction on standardized test scores of the high school students?
8. In one high school class (75 students) the following information on courses they were enrolled in was obtained: Use a Venn diagram and answer the following questions. # of students Students taking Math class Literature class History class Both Math and History Both History and Literature Both Math and Literature Taking all three classes by C hloor ons GA How many students did not like any of these three classes? 15 How many students have only taken math? 26...
An exam is given to all senior high school students, the standard deviation for all the students is given as 30. The average score for 40 students on the exam is 250. Assume the means to be measured to any degree of accuracy (assume that scores are Gaussian distributed). (a) Find the 95% confidence interval (CI) for the average score of all students taking the exam. (b) Find the prediction interval for the score of the next student chosen at...
An exam is given to all senior high school students, the standard deviation for all the students is given as 30. The average score for 40 students on the exam is 250. Assume the means to be measured to any degree of accuracy (assume that scores are Gaussian distributed). (a) Find the 95% confidence interval (CI) for the average score of all students taking the exam. (b) Find the prediction interval for the score of the next student chosen at...
SORU 1 An exam is given to all senior high school students, the standard deviation for all the students is given as 30. The average score for 50 students on the exam is 540. Assume the means to be measured to any degree of accuracy assume that scores are Gaussian distributed Find the 90s confidence interval (C) for the average score of all students taking the exam, Find the prediction interval for the score of the next student chosen at...
An exam is given to all senior high school students, the standard deviation for all the students is given as 30. The average score for 50 students on the exam is 540. ASS the means to be measured to any degree of accuracy (assume that scores are Gaussian distributed). (a) Find the 90% confidence interval (CI) for the average score of all students taking the exam. (b) Find the prediction interval for the score of the next student chosen at...
QUESTION 1 An exam is given to all senior high school students, the standard deviation for all the students is given as 30. The average score for 40 students on the exam is 250. Assume the mea measured to any degree of accuracy (assume that scores are Gaussian distributed). (a) Find the 95% confidence interval (CI) for the average score of all students taking the exam. (b) Find the prediction interval for the score of the next student chosen at...
The data below was collected from random samples of high school students in various counties given a new standardized test in science. SCORES LOCATION Fresno County L.A. County Kern County Sacramento County Fail Low Pass Pass High Pass 30 60 70 150 15 40 50 80 150 400 90 250 75 80 30 50 13.What sort of scale of measurement was used to record the scores of the students(Nominal, ordinal, interval or ratio)? 14.What sort of variable is represented by...
QUESTION 1 An exam is given to all senior high school students, the standard deviation for all the students is given as 30. The average score for 25 students on the exam is 440. Assume the means to be measured to any degree of accuracy (assume that scores are Gaussian distributed). (a) Find the 98% confidence interval (CI) for the average score of all students taking the exam. (b) Find the prediction interval for the score of the next student...
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