1. A random sample of 10 students from a statistics course at the master's level was selected. The results indicate that the time in hours spent studying during the semester and the scores obtained in the final exam were:

Time: 40 42 37 47 25 44 41 48 35 28

Scores: 77 63 79 86 51 78 83 90 65 47

What is the p-value?

1. 0.881
2. b. 0.000754
3. c. 0.776
4. d. 0.748

2. A manager of a company wants to measure the factors that have the space of the office and the time dedicated to integrating technology in the professional performance of the employee. Which statistical analysis is most appropriate to measure factors?

a. Variance

b. Correlation

c. t-test

d. Regression

3. A real estate agent specializing in commercial real estate wants a more accurate wat to measure the potential selling price of building apartments, As a first effort, it recorded the several recently sold apartment buildings ($1,0000) What is the coefficient of determination of the regression model?

a. 0.6881717

b.0.000123

c.0.413418

d. 0.4735803

4. A real estate agent specializing in commercial real estate wants a more accurate wat to measure the potential selling price of building apartments, as a first effort, it recorded the several recently sold apartment buildings ($1,0000) and the number of square feet in the building. Which of the independence variables were significant, at 95% confidence, in the regression model-dependent variables?

a. Age, Floor

b. Apartment

c. Intercept, Apartment

d. Size, Floors

5. When performing a t-test between two independent samples and you want to know the existence of a significant difference at a level of 90% confidence, the p-value found must be:

a. less than 0.05

b. less than 0.01

c. less than 0.10

d. greater than 0.10

6. When a statistician performs a correlation test, the most significant result is to observe whether the correlation coefficient is between:

a. greater than .05

b. less than .05

c. 0 and 1

d. -1 and 1

7. The approach of a null hypothesis for an analysis of an ANOVA test is:

a. At least two differ.

d. The means of all samples are the same.

c. The variances of all samples are equal.

d. The mean of sample a is equal to the mean of sample 2

8. A random sample of 10 students from a statistics course at the master's level was selected. The results indicate that the time in hours spent studying during the semester and the scores obtained in the final exam were:

Time: 40 42 37 47 25 44 41 48 35 28

Scores: 77 63 79 86 51 78 83 90 65 47

What is the Pearson correlation coefficient?

1. 0.654
2. 0.748
3. 0.881
4. 0.776