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myrzilka [38]
3 years ago
13

Professor Knice gives his introductory psychology class of 300 students an exam, and everyone earns an A. The exam lacks the ___

__ to detect which students studied and which did not.
A)sample size
B)reliability
C)power
D)significance
Business
1 answer:
Paha777 [63]3 years ago
8 0

The exam lacks the power to determine which students has studied and the students who have not studied

Explanation:

In his introductory class the professor in the motive of encouraging the students and to make them more involved in learning the subject he offers A grade to all the students

In this case the professor will lose his ability to judge the student and he will consume his time in understanding and estimating the students who has the ability to learn and the student who do not have

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Zumba classes sell all 20 participant spots at a price of $4.50 each. When the instructor raised the prices to $5.50, 10 people
Ugo [173]

Answer:

Zumba classes sell all 20 participant spots at a price of $4.50 each. When the instructor raised the prices to $5.50, 10 people attended the class. From the midpoint method, the price elasticity of demand for Zumba is:

0.286

Explanation:

20 at $4.50= $90

10 at $5.50= $55

price elasticity= change in quantity demand/ change in price

20-10= 10 change in quantity demand

$90-$55= $35

10/35=0.286

8 0
3 years ago
Newman Finley wishes to become a millionaire. His money market fund has a balance of $296,375 and has a guaranteed interest rate
Rus_ich [418]

Answer:

Investment period = 24 years

Explanation:

The total amount that an investment made today would become  if invested at a particular rate for certain number of years is known as the future value.

The $1,200,000 is the desired future value, the $296, 375 is the present value and the 6% is the interest rate.

FV = PV × (1+r)^n

1,200,000 = 296,375 × (1.06)^(n)

(1.06)^(n) = 1200000/96,375

(1.06)^(n) =4.048924504

find the log of both sides

n log 1.06= log 4.048924504

n= log 4.048924504/log 1.06

n = 24

It will take 24 years

3 0
3 years ago
When a provider signs a contract to be a participating provider with an insurance payer they are agreeing to:
Lesechka [4]

Answer:

Accept the fee schedules set by the insurance company.

Explanation:

A participating provider is defines as one who has entered into a written agreement with an insurance company to provide a given range of Medicare Part B services on an assigned basis.

Usually various fees are scheduled for each of the services provided.

The discount on services in this instance is not much and they are always obligated to provide service.

On the other hand preferred provider is one who provides services at a discount.

6 0
2 years ago
The financial institution that generally charged the lowest rates on loans is
astra-53 [7]

Banks and Credit Unions usually charge the lowest rates on loans.

8 0
3 years ago
Assume you are in the business of producing and selling milkshakes. If you could produce more milkshakes with the same input, wh
poizon [28]

Answer:

Both increases

Explanation:

Suppose a person initially produces and sell some amount of milkshakes with the available resources.

But, if he will be able to produce and sell more quantity of milkshakes with the same level of resources then this will indicates that there is a rise in the productivity of this person and if the number of milkshakes sold increases then as a result profits increases at a same price level.

For Example:

Case 1:

Initially,

Person producing and selling = 20 units of milkshakes at a selling price of $10 each and cost of inputs used in the production = $50

Therefore, Profits = Total revenue - Total cost

                              = (20 units × $10 each) - $50

                              = $200 - $50

                              = $150

Case 2:

Now, we assumed that there is an increase in the productivity of this person. Cost of production and selling price of each milkshake remains the same.

Person producing and selling = 40 units of milkshakes at a selling price of $10 each and cost of inputs used in the production = $50

Therefore, Profits = Total revenue - Total cost

                              = (40 units × $10 each) - $50

                              = $400 - $50

                              = $350

Hence, there is an increase in the profits from $150 to $350.

6 0
3 years ago
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