5 less than x
or
subtract 5 from x
Answer:
Job A pays 4.75 more per hour than job B
Step-by-step explanation:
A= 70 per hour
B= 65.25 per hour
The value of test statistic is 5.45
Data;
- n1 = 25
- n2 = 30
- x1 = 6.2
- x2 = 3.8
- s1 = 2
- s2 = 1
<h3>Test Statistic</h3>
The formula to calculate the test statistic is given as
Let's substitute the values and solve for t
The value of test statistic is 5.45
Learn more on test statistic here;
brainly.com/question/15980493
Answer:
B. Set the alpha level at 0.05.
Step-by-step explanation:
Hypothesis testing is a procedure whereby a researcher determines if the null hypothesis is rejected or accepted, depending on the significant level or the alpha level. When a type I error is made, the null hypothesis is rejected even though it is correct. To solve this problem, the significant or alpha level is set to 5% or 0.05.
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