Answer the following problems. Apply the different steps in hypothesis testing. 1. A sales manager wanted to know whether there was significant difference in the monthly sales of four representatives. Veniz is strictly on salary and small allowance, Alyson is strictly on commission, Alyxa is on commission and small salary, and Elijah is on small commission and a salary. Five months were chosen at random. The data represents monthly sales in units of product. Veniz Alyson Alyxa Elijah 20 28 23 31 24 22 30 25 26 24 29 26 30 25 20 27 22 26 25 21 Using 0.01 level of significance, test the hypothesis that there is no difference in the mean monthly sales of the representatives.

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Answer the following problems. Apply the different steps in hypothesis testing.
1. A sales manager wanted to know whether there was significant difference in the
monthly sales of four representatives. Veniz is strictly on salary and small allowance,
Alyson is strictly on commission, Alyxa is on commission and small salary, and Elijah
is on small commission and a salary. Five months were chosen at random. The data
represents monthly sales in units of product.
Veniz
Alyson
Alyxa
Elijah
20
28
23
31
24
22
30
25
26
24
29
26
30
25
20
27
22
26
25
21
Using 0.01 level of significance, test the hypothesis that there is no difference in the
mean monthly sales of the representatives.
Transcribed Image Text:Answer the following problems. Apply the different steps in hypothesis testing. 1. A sales manager wanted to know whether there was significant difference in the monthly sales of four representatives. Veniz is strictly on salary and small allowance, Alyson is strictly on commission, Alyxa is on commission and small salary, and Elijah is on small commission and a salary. Five months were chosen at random. The data represents monthly sales in units of product. Veniz Alyson Alyxa Elijah 20 28 23 31 24 22 30 25 26 24 29 26 30 25 20 27 22 26 25 21 Using 0.01 level of significance, test the hypothesis that there is no difference in the mean monthly sales of the representatives.
Solution:
Step 1: State the hypotheses.
Ho:
H₁:
Step 2: The level of significance and critical region. α =
Step 3: Compute for the value of one sample t test. tcomputed =
Step 4: Decision rule.
Step 5: Conclusion.
df =
and tritical =
Transcribed Image Text:Solution: Step 1: State the hypotheses. Ho: H₁: Step 2: The level of significance and critical region. α = Step 3: Compute for the value of one sample t test. tcomputed = Step 4: Decision rule. Step 5: Conclusion. df = and tritical =
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