Question

In: Economics

A student taking economics, statistics, and finance has decided to spend 9 hours per week studying....

A student taking economics, statistics, and finance has decided to spend 9 hours per week studying. The objective is to maximize the average grade, which means maximizing the total grade in the three courses. The table shows the student's estimate of the relation between time spent studying each course and the grade for each course.

Hours of Study Grade In
Economics Statistics Finance
0 50 42 56
1 62 54 68
2 71 64 76
3 79 72 82
4 85 80 87
5 88 84 90
6 90 87 93
7 92 89 95

Based on the information in the table, what is the maximum average grade the student can earn if she studies 9 hours per week?

  • 80

  • 80.3

  • 82

  • 78.3

Solutions

Expert Solution


Related Solutions

From past studies the average time college freshmen spend studying is 22 hours per week. The...
From past studies the average time college freshmen spend studying is 22 hours per week. The standard deviation is 4 hours. This year, 60 students were surveyed, and the average time that they spent studying was 20.8 hours. Test the claim that the time students spend studying has not changed. Use a=1%
from past studies the average time college freshmen spend studying n 22 hours per week. The...
from past studies the average time college freshmen spend studying n 22 hours per week. The standard deviation is 4 hours. This year, 60 students were surveyed, and the average time that they spent studying was 20.8 hours. Test the claim that the time students spend studying has not changed. Use a=1%
A statistics instructor wants to examine the relationship between the hours a student spends studying for...
A statistics instructor wants to examine the relationship between the hours a student spends studying for the final exam (Hours) and a student's grade on the final exam (Grade). She takes a sample of five students. Student x (Hours) y (Grade) 1 8 75 2 2 47 3 3 50 4 15 88 5 25 93 a. Computer the Average and Standard Deviation for x and y USING EXCEL. b. Computer the sample covariance for x & y USING EXCEL...
National statistics show that the average middle school student spends 8.694 hours per week playing video...
National statistics show that the average middle school student spends 8.694 hours per week playing video games. A random sample of 12 middle school students reveals the following times in hours each student spent playing video games. 4.50 9.75 9.50 8.25 5.00 14.50 11.00 4.00 8.25 11.25 11.75 15.50 Has the national average changed? State the hypotheses, check conditions, compute test statistics, standardize and give degrees of freedom. Include a sketch, state the p-value followed by your conclusion.
For a 4-unit class like Statistics, students should spend average of 12 hours studying for the...
For a 4-unit class like Statistics, students should spend average of 12 hours studying for the class. A survey was done on 24 students, and the distribution of total study hours per week is bell-shaped with a mean of 14 hours and a standard deviation of 3.4 hours. Use the Empirical Rule to answer the following questions. a) 68% of the students spend between  hours and  hours on Statistics each week. b) 95% of the students spend between  hours and  hours on Statistics each...
For a 4-unit class like Statistics, students should spend average of 12 hours studying for the...
For a 4-unit class like Statistics, students should spend average of 12 hours studying for the class. A survey was done on 20 students, and the distribution of total study hours per week is bell-shaped with a mean of 13 hours and a standard deviation of 3.4 hours. Use the Empirical Rule to answer the following questions. a) 68% of the students spend between - hours and - hours on Statistics each week. b) 95% of the students spend between...
The times that college students spend studying per week have a distribution that is skewed to...
The times that college students spend studying per week have a distribution that is skewed to the right with a mean of 7.0 hours and a standard deviation of 2.4 hours. Find the probability that the mean time spent studying per week for a random sample of 45 students would be a. between 7.4 and 8.2 hours. b. less than 7.4 hours . Note 1: Round your z values to 2 decimal places before looking them up in the table...
The student union wants to determine the mean number of hours per week a student at...
The student union wants to determine the mean number of hours per week a student at Okanagan College studies. To accomplish this, they passed a questionnaire to 14 randomly chosen students among first and second year status. They also wanted insure an equal number of men and women to possibly investigate gender differences. The results were: Year of study 1 2 1 1 2 2 1 1 2 2 2 1 1 2 Mean hours studied per week 4 12...
Assume that the amount of time (hours) that young apprentices spend per week on their homework...
Assume that the amount of time (hours) that young apprentices spend per week on their homework in their training program at a major manufacturer is normally distributed with a mean of 12 hours and a standard deviation of 5. 3. If 65 apprentices are selected at random, find the probability that they average more than 12 hours per week on homework. a. 0.3999 b. 0.6999 c. 0.5000 d. 0.7999 4. If 65 apprentices are selected at random, find the probability...
The times that college students spend studying per week have a distribution skewed to the right...
The times that college students spend studying per week have a distribution skewed to the right with a mean of 8.3 hours and a standard deviation 2.6 of hours. Find the probability that the mean time spent studying per week for a random sample of 55 college students would be a. between 7.6 and 8.4 hours. Round your answer to two decimal places. b. less than 8.1 hours. Round your answer to two decimal places. THE ANSWERS ARE NOT .49...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT