In ad determine whether the given procedure results in a binomial distribution For those that are not binomial identify at least one requirement that is not satisfied. For those that are define the binomial random variable.
a) Drawing 5 cards from a deck of cards, with replacement, and counting the number of clubs.
b) Drawing 5 cards from a deck of cards, without replacement, and counting the number of clubs
c) Surveying 1000 college students by asking them how many credits they are currently taking
d) Surveying 1000 college students by asking them if they are taking over 15 credits.
In: Statistics and Probability
In: Statistics and Probability
Question 3
Two examiners mark every script. Examiner A gives scores according to a Normal distribution with mean 65 and standard deviation of 10. Examiner B gives scores according to a Normal distribution with mean 55 and standard deviation of 15.
In: Statistics and Probability
A poll of 1500 college students asked whether or not they had
used the Internet to find a place to live sometime within the past
year. There were 525 students who answered “Yes”; the other 975
answered “No”.
a)What is n? What is the value of X? Find the sample proportion pˆ
.
d)Can we use normal approximation for this sample?
e)What normal model are you using X or Pˆ ? Please find the mean and standard deviation appropriately.
f) Sketch the sampling model, using the 68-95-99.7 Rule.
In: Statistics and Probability
The business college computing center wants to determine the proportion of business students who have personal computers (PC's) at home. If the proportion exceeds 35%, then the lab will scale back a proposed enlargement of its facilities. Suppose 300 business students were randomly sampled and 122 have PC's at home. Should the college scale back on the proposed enlargement of its facilities? Use alpha = .05.
a) Check the assumptions:
b) Hypotheses (State in symbols and in words): Ho:Ha:
c) Test Statistic: ___________________
d) Sketch:
e) P-Value: ____________________
f) Conclusion
In: Statistics and Probability
In: Statistics and Probability
This assignment task requires a consideration and application of accounting theories and concepts with critical analysis based on General Purpose Financial Reporting by corporations. Students are required to prepare a comprehensive report directed to an Australian ASX Top 100 listed corporation detailing a critical analysis of the effectiveness of the corporation to meet the obligations of the conceptual framework of accounting. Students are to analyze the company’s accounting policies and corporate governance matters under the concepts discussed during the classes such as accounting Theories, harmonization, standards settings, positive accounting theories, normative theories, measurement approaches and others.
In: Accounting
The following data were collected from a survey of 10 randomly selected college students:
Find the mean, median, mode, variance, standard deviation, the five number summary report of the hours per week of the sample of students’ studied. Show your work.
| Student ID | # hours of study per week | |
| 244701130 | Yes | 8 |
| 302896051 | no | 5 |
| 734077249 | yes | 11 |
| 891072704 | yes | 5 |
| 730265917 | yes | 9 |
| 894866913 | no | 6 |
| 644678646 | no | 1 |
| 369417477 | yes | 1 |
| 388511718 | yes | 2 |
| 554470987 | no |
1 |
In: Statistics and Probability
Twenty years ago, 56% of parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. A recent survey found that 295 of 750 parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. Do parents feel differently today than they did twenty years ago? Use the α=0.01 level of significance.
Find the P-value.
P-value=__________
(Round to three decimal places as needed.)
In: Statistics and Probability
In: Economics