Question

In: Statistics and Probability

3. In one of the faculty; students come from three different high school types. They are...

3. In one of the faculty; students come from three different high school types. They are using
three different brand mobile phone. The dean claim that there is a relationship between mobile
phone brand and high school type. Test this claim with 0.05 significance level by using the
correct test and showing each calculations step in Ms Word file. You have to use the same
steps which we used in the lecture. You can find the steps from lecture slides or recorded
video. Also, you have to take in a consider the HOMEWORK - PROJECTPERFORMANCE
EVALUATION FORM which is above. (30p) SEND IT IN MS
WORD FORMAT NOT SCREEN SHOT.
Mobile phone brand A Mobile Phone Brand B Mobile phone brand c
High School A 28 20 18
High School B 22 24 28
High School C 44 30 32

Solutions

Expert Solution

therefore we do not have enough evidence to conclude that the two categories variables are not independent.


Related Solutions

A group of high-school parents in Tucson, Arizona, in conjunction with faculty from the University of...
A group of high-school parents in Tucson, Arizona, in conjunction with faculty from the University of Arizona, claim that young women in the Tucson high schools not only are called on less frequently, but receive less time to interact with the instructor than do young men. They would like to see the school district hire a coordinator, spend money (and time) on faculty workshops, and offer young women classes on assertiveness and academic communication. To make things simple, assume that...
Twenty percent of the contestants in a scholarship competition come from Pylesville High School, 40% come...
Twenty percent of the contestants in a scholarship competition come from Pylesville High School, 40% come from Millerville High School, and the remaining come from Lakeside High School. Two percent of the Pylesville students are among the scholarship winners; 3% of the Millerville contestants and 5% of the Lakeside contestants win. a) If a winner is chosen at random, what is the probability that they are from Lakeside? b) What percentage of the winners are from Pylesville?
Fremont High School has 2100 students. One of the statistics teachers at the school is interested...
Fremont High School has 2100 students. One of the statistics teachers at the school is interested in whether an intervention program based on self-management improves attendance. They randomly choose 80 students and randomly assign half of them to either an experimental condition (self- management class) or a control condition (distractor class on popular culture). At the end of the semester, they measure the number of days missed for each student. The teacher expects that the students in the self-management class...
The table lists the number of students from three different high schools participating in the mathematics...
The table lists the number of students from three different high schools participating in the mathematics and physics sections of a science fair High School 1 High School 2 High School 3 Mathematics 7 7 18 Physics 37 17 21 Given the following results. a) State the alternative hypothesis statement. (1 mark) b) State the degrees of freedom. (1 mark) c) Find the value of A, B, and C. d) Using the p-value method, at α = 0.05, test the...
(3) You are presenting to a group of high school students on the dangers of substance...
(3) You are presenting to a group of high school students on the dangers of substance abuse. Discusses potential causes and incidence rates
Lying to a teacher. One of the questions in a survey of high school students asked...
Lying to a teacher. One of the questions in a survey of high school students asked about lying to teachers. The following table gives the number of students who said that they lied to a teacher as least once during the past year, classified by sex: Sex Sex Lied as least once Male Female Yes 3,228 10,295 No 9,659 4,620 A. Add the marginal totals to the table B. Calculate appropriate percents to describe the results of this question C....
Many high school students take the AP tests in different subject areas. In 2007, of the...
Many high school students take the AP tests in different subject areas. In 2007, of the 144,796 students who took the biology exam 84,199 of them were female. In that same year, of the 211,693 students who took the calculus AB exam 102,598 of them were female ("AP exam scores," 2013). Estimate the difference in the proportion of female students taking the biology exam and female students taking the calculus AB exam using a 90% confidence level. Considering it is...
Many high school students take the AP tests in different subject areas. In 2007, of the...
Many high school students take the AP tests in different subject areas. In 2007, of the 143044 students who took the AP biology exam 76712 of them were female. In that same year, of the 211993 students who took the AP calculus AB exam 100106 of them were female. Is there enough evidence to show that the proportion of AP biology exam takers who are female is higher than the proportion of AP calculus AB exam takers who are female?...
Many high school students take the AP tests in different subject areas. In 2007, of the...
Many high school students take the AP tests in different subject areas. In 2007, of the 144,796 students who took the biology test 84,199 of them were female. In that same year, of the 211,693 students who took the calculus AB test 102,598 of them were female. Is there enough evidence to show that the proportion of female students taking the biology test is higher than the proportion of female students taking the calculus AB test? Test at the 5%...
There are three different types of tests we learned. What one of the three types is...
There are three different types of tests we learned. What one of the three types is the following? “ A researcher estimates that high school girls miss more days of school than high school boys. A sample of 16 girls showed that they missed an average of 3.9 days of school and a sample of 22 boys showed that they missed an average of 3.6 days. The standard deviation of the 16 girls was .6 and the standard deviation of...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT