Answer:
C
Step-by-step explanation:
<u>Job A:</u>
<u>Job B:</u>
Solving these 2 equations for would tell us after how many days both job would pay the same. Answer choice C is correct.
Answer:
Step-by-step explanation:
We have to find the quotient of the following division, .
Now,
= {Since all the terms in the expression are in product form, so we can treat them separately}
{Since we know the property of exponent as }
=
= (Answer)
{Since we know, }
Answer:
The Cohen's D is given by this formula:
Where represent the deviation pooled and we know from the problem that:
represent the pooled variance
So then the pooled deviation would be:
And the difference of the two samples is , and replacing we got:
And since the value for D obtained is 0.5 we can consider this as a medium effect.
Step-by-step explanation:
Previous concepts
Cohen’s D is a an statistical measure in order to analyze effect size for a given condition compared to other. For example can be used if we can check if one method A has a better effect than another method B in a specific situation.
Solution to the problem
The Cohen's D is given by this formula:
Where represent the deviation pooled and we know from the problem that:
represent the pooled variance
So then the pooled deviation would be:
And the difference of the two samples is , and replacing we got:
And since the value for D obtained is 0.5 we can consider this as a medium effect.