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marissa [1.9K]
3 years ago
12

Concussions and Brain Size A recent study1 examined the relationship of football and concussions on hippocampus volume in the br

ain. The study included three groups with in each group: healthy controls who had never played football, football players with no history of concussions, and football players with a history of concussions. In this exercise, we test for evidence that average brain size is larger in football players who have never had a concussion (FBNoConcuss) than in football players with a history of concussions (FBConcuss). The data are in FootballBrain where the variable Hipp measures brain size as the volume of the hippocampus (in ml) for each subject. Let group be the football players with no concussion and group be the football players with a history of concussions.

Business
1 answer:
Gwar [14]3 years ago
5 0

Answer:

Part A: Null hypothesis. H₀: M₁ = M₂

Alternative hypothesis, H₁ : M₁ > M₂

Part B: x1-x2 = 6459-5735 = 724

Part C: p-value = 0.000

Part D: No, the difference in brain size is not due to random chance

Explanation:

See attached image

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Dole Company uses the periodic inventory system. At the end of the accounting​ period, ending inventory is​ $10,000 and beginnin
Troyanec [42]

Answer:

The one entry is recorded

Explanation:

The journal entry is shown below:

Inventory A/c Dr (Ending inventory) $10,000

Cost of goods sold A/c Dr (Balancing figure) $94,000

      To Inventory A/c Dr (Beginning inventory)        $5,000

      To Purchase account                                          $99,000

In mathematically,

Cost of goods sold = Beginning inventory + purchase - ending inventory

                                = $5,000 + $99,000 - $10,000

                                = $94,000

4 0
3 years ago
Which of these products would be most likely to have dependent demand? televisions refrigerators automobiles automobile engines
harkovskaia [24]

Answer:

\boxed{\bold{Automobile \ Engines}}

Explanation:

➤ Automobile engines would be most likely to have dependent demand

When creating a new car, customers are going to want an engine in their car. That is why it is a "department demand." It is a demand that an automobile must have an engine when you are creating / working in the automobile department. You can't build an automobile without an engine, and that is why it is a demand to have one.

- Mordancy

8 0
3 years ago
A pharmacy has determined that a healthy person should receive 70 units of proteins, 100 units of carbohydrates and 20 units of
makvit [3.9K]

Answer:

no thank u

Explanation:

3 0
2 years ago
Look at the picture, which one is the correct answer?
patriot [66]
Probably production function
6 0
3 years ago
Read 2 more answers
Use the information below to answer questions 4-7. Drake Company's income statement for the most recent year appears below:
Colt1911 [192]

Answer:

(A) $731,250

Explanation:

The formula to compute the break-even point in sales dollars is shown below:

= (Fixed expenses or Fixed cost) ÷ (Contribution ratio)

where,

Contribution ratio = Contribution margin ÷ sales

                             = $208,000 ÷ $650,000

                             = 0.32 or 32%

And, the fixed expense is $234,000

Now put the values to the above formula

So, the value would equal to

= $234,000 ÷ 32%

= $731,250

6 0
3 years ago
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