1. The owner of two manufacturing companies would like to review the salary scale of the employees. He wants to make sure that the employees of the two companies are receiving equal amount. In Company A, he found out that the average salary of 20 selected employees is Php27,800 with a standard deviation of Php1609.18 while in Company B, the average salary of 25 selected employees is Php26,760 with a standard deviation of Php1588.50. Which of the following should be the alternative hypothesis?

A. The salary of employees in Company A is not significantly higher than Company B.

B.The salary of employees in Company A is significantly higher than Company B.

C.There is significant difference between the salaries of employees in Company A and Company B.

D.There is no significant difference between the salaries of employees in Company A and Company B.

2.The owner of two manufacturing companies would like to review the salary scale of the employees. He wants to make sure that the employees of the two companies are receiving equal amount. In Company A, he found out that the average salary of 20 selected employees is Php27,800 with a standard deviation of Php1609.18 while in Company B, the average salary of 25 selected employees is Php26,760 with a standard deviation of Php1588.50. The degrees of freedom assuming unequal variances is 41. What is the p-value corresponding to the test statistics value?

A.0.0361

B0.0181

C.0.0118

D.0.0316

3.The owner of two manufacturing companies would like to review the salary scale of the employees. He wants to make sure that the employees of the two companies are receiving equal amount. In Companyc A, he found out that the average salary of 20 selected employees is Php27,800 with a standard deviation of Php1609.18 while in Company B, the average salary of 25 selected employees is Php26,760 with a standard deviation of Php1588.50. Which of the following are the correct decisions?

1. Reject Ho since the p-value is less than the level of significance.
2. Reject Ho since the test statistics value is higher than the critical value.
3. Reject Ho since the p-value is greater than the level of significance.
4. Reject Ho since the test statistics value is less than the critical value.

A.II and III

B.I and IV

C. I and II

D.III and IV

4.The owner of two manufacturing companies would like to review the salary scale of the employees. He wants to make sure that the employees of the two companies are receiving equal amount. In Company A, he found out that the average salary of 20 selected employees is Php27,800 with a standard deviation of Php1609.18 while in Company B, the average salary of 25 selected employees is Php26,760 with a standard deviation of Php1588.50. Which of the following is TRUE?

A.There is no significant difference between the salaries of employees in Company A and Company B.

B.There is significant difference between the salaries of employees in Company A and Company B.

C.The salary of employees in Company A is not significantly higher than Company B.

D.The salary of employees in Company A is significantly higher than Company B.