Question

In: Math

A high school physics teacher wondered if his students in the senior class this year will...

A high school physics teacher wondered if his students in the senior class this year will be more likely to go into STEM (Science, Technology, Engineering, Mathematics) majors than Social Science and Liberal Arts majors. He asked each of his 65 students about their first choice for major on their college applications and conducted a Chi-square test for goodness of fit with an alpha level of .05 to see if the number of students choosing each category differs significantly.

35 – STEM

20 – Social Sciences

10 – Liberal Arts

a. What is the variable in this test? What type of variable is it (nominal, ordinal, or continuous)? (1 point total: .5 for each question)

b. State the null and alternative hypotheses in words (1 point total: .5 for each hypothesis)

c. Calculate X2 statistic (2 points total: 1 for final answer, 1 for the process of calculating it)

d. Calculate the degree of freedom and then identify the critical value (1 point total: .5 for df, .5 for critical value)

e. Compare the X2 statistic with the critical value, then report the hypothesis test result, using “reject” or “fail to reject” the null hypothesis in the answer (1 point total, .5 for each answer)

f. Explain the conclusion in a sentence or two, to answer the research question. (1 point)

Solutions

Expert Solution



Related Solutions

Question I In the senior year of a high school graduating class of 100 students, 42...
Question I In the senior year of a high school graduating class of 100 students, 42 studied mathematics, 68 studied psychology, 54 studied history, 22 studied both mathematics and history, 25 studied both mathematics and psychology, 7 studied history but neither mathematics nor psychology, 10 studied all three subjects, and 8 did not take any of the three. Randomly select a student from the class and find the probabilities of the following events. (a) A person enrolled in psychology takes...
Drew wondered if the average age of students in AP Statistics classes in his high school...
Drew wondered if the average age of students in AP Statistics classes in his high school is under 18. He randomly selected 10 AP Statistics students in his school and the data set is given below. Using the information from a previous survey, he has concluded that the population standard deviation for the age of AP Statistics students in his school is 1.23. Assume that the ages of students in AP Statistics classes in this high school are normally distributed....
John was a high school teacher earning $ 80,000 per year. He quit his job to...
John was a high school teacher earning $ 80,000 per year. He quit his job to start his own business in pizza catering.In order to learn how to run the pizza catering business, John enrolled in a TAFE to acquire catering skills.John’s course was for 3 months. John had to pay $2,000 as tuition for the 3 months. After the training, John withdrew $110,000 from his savings account. He had been earning 5 percent interest per year for this account....
John was a high school teacher earning $ 80,000 per year. He quit his job to...
John was a high school teacher earning $ 80,000 per year. He quit his job to start his own business in pizza catering. In order to learn how to run the pizza catering business, John enrolled in a TAFE to acquire catering skills. John’s course was for 3 months. John had to pay $2,000 as tuition for the 3 months. After the training, John withdrew $110,000 from his savings account. He had been earning 5 percent interest per year for...
A high school teacher is interested to compare the average time for students to complete a...
A high school teacher is interested to compare the average time for students to complete a standardized test for three different classes of students.        The teacher collects random data for time to complete the standardized test (in minutes) for students in three different classes and the dataset is provided below.     The teacher is interested to know if the average time to complete the standardized test is statistically the same for three classes of students. Use a significance level...
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....
A Physics teacher takes a random sample of size 5 from his students. Their marks in...
A Physics teacher takes a random sample of size 5 from his students. Their marks in a written test (x) and a practical test (y) are given in the following table. Student A B C D E X 11 14 16 12 15 Y 9 12 14 13 15 (i) Find the product moment correlation coefficient. [3] (ii) Test, at the 5% significance level, whether there is evidence of positive correlation. [4] The teacher takes a second random sample, this...
Albany High School is planning a field trip for senior students. They expected 100 students to...
Albany High School is planning a field trip for senior students. They expected 100 students to participate in the trip but eventually 130 students join the trip. They planned to charge each student a price of $25 for the trip and spend an expense of $20 per student for the trip. Then, they find that the expense of the filed trip goes up to $30 per student, and they have to increase the price for each student to $40. Budget...
The officers of a high school senior class are planning to rent buses and vans for...
The officers of a high school senior class are planning to rent buses and vans for a class trip. Each bus can transport 35 students, requires 3 ​chaperones, and costs ​$ 1,200 to rent. Each van can transport 7 ​students, requires 1​ chaperone, and costs ​$ 90 to rent. Since there are 280 students in the senior class that may be eligible to go on the​ trip, the officers must plan to accommodate at least 280 students. Since only 30...
The officers of a high school senior class are planning to rent buses and vans for...
The officers of a high school senior class are planning to rent buses and vans for a class trip. Each bus can transport 80 students, requires five chaperones, and cost $1000 to rent. Each band can transport 10 students, requires one chaperone, and cost $80 to rent. Since there are 800 students in the senior class that may be eligible to go on the trip, the officers must plan to accommodate at least 800 students. So it's only 65 parents...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT