Name: Date: ID: B Exam 3 BA214 Multiple Choice (total 100 points, 30 questions,

Question

Name: Date: ID: B Exam 3 BA214 Multiple Choice (total 100 points, 30 questions, 3,3 points each, plus 1 point for your name) Identify the choice that best completes the statement or answers the question. 1. If the p-value is less than , a the alternative hypothesis is rejected b. the null hypothesis is rejected c. the null hypothesis will sometimes be rejected Refer to Exhibit 3. The expected frequency of seniors is a 60 b.20% c. 68 d. 64 5. and sometimes not be rejected depending on the sample size Not enough information is given to answer this question. d. Refer to Exhibit 3. The caleulated value for the test statistic equals a. 0.5444 b. 300 c. 1.6615 d. 6.6615 6. Exhibit 3 South Carolina State University consisted of 30% freshmen, 24% sophomores, 26%juniors, and 20% seniors in 2015. A sample of 300 students taken in 2016 showed the following student distribution The equation that describes how the dependent variable () is related to the independent variable 7. 83 68 85 64 (x) is called a the correlation model b. the regression model e. correlation analysis d. Nonc of these answers is correct. Freshmen Juniors Seniors We are interested in determining whether or not there has been a significant change in the classifications between 2015 and 2016. 8. If the coefficient of correlation is a negative value, Refer to Exhibit 3. The expected number of freshmen is a. 83 b. 90 then the coefficient of determination a. must also be negative b. must be zero c. can be either negative or positive d. must be positive 2. 9. The sampling distribution for a goodness of fit test is the a. Poisson distribution b. distribution c. normal distribution d. chi-square distribution 30 d. 10 Refer to Exhibit 3. The p-value is a. less than.005 b. between 025 and 0.05 c. between 05 and 0.1 3. d. greater than 0.1 Refer to Exhibit 3, At 95% confidence, the null 4. a. b. c. d. should not be rejected should be rejected was designed wrong None of these altermatives is correct.

Explanation / Answer

As per the Chegg policy, we are allowed to do only one question at a time but since its a multiple choice, i will attempt the first six.

1. Option B is correct.

The software output for problem 2 to problem 6 is:

Chi-Square goodness-of-fit results:
Observed: var3
Expected: var4

Hence,

2. Option B is correct.

3. Option D is correct.

4. Option A is correct.

5. Option A is correct.

6. Option C is correct.

N DF Chi-Square P-value 300 3 1.6615385 0.6455

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