Answer:
mAB = 49
mABC = 253
mBAC= 156
mACB = 311
Step-by-step explanation:
Sydney’s age is 50.
Devaughn age: x-15 Sydney’s age: x
x-15+x = 85
2x-15 = 85
2x = 100
x = 50
Answer:
1. T test for independent means
2. T test for dependent means
3. T test for dependent means
Step-by-step explanation:
In number 1, the two groups are unrelated. The first group has 25 subjects and they're all unemployed. The second group has 24 subjects and their employment status is not stated and might not be the same all through. Also, the first group is receiving a new type of job skills program while the second group is taking the standard job skills program.
- The groups in the experiment are unrelated
- The tests in the research are unrelated
- The purpose of the research is unreasonable - the researcher seeks to measure how well all 49 subjects perform on 'a' job skills test! No comparison between the scores or mean scores of the two groups.
In number 2, the researcher uses the same subjects and also measures the same variable but twice. This is a good example of a study where the t test for dependent means can be taken. Same applies in case 3.
<h2>How to find the cost per can</h2>
To find the cost per can, we can divide the total cost by the number of cans.
<h2>
Let's start with BiLo:</h2>
Total cost: $5.55
Number of cans: 12
The cost per can will be:
$0.4625 per can
How about Food Lion?
<h2>Food Lion</h2>
Total cost: $2.75
Number of cans: 6
The cost per can will be:
Around $0.4583 per can
<h2>Comparing</h2>
BiLo: $0.4625
Food Lion: around $0.4583
As we can see, Food Lion has a better cost per can, as it costs less to buy each can of Pepsi.
Answer: Food Lion has a better cost per can
