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vekshin1
3 years ago
12

A random sample of 50 four-year-olds attending day care centers provided a yearly tuition average of $3987 and the population st

andard deviation of $630. Find the 90% confidence interval of the true mean
SAT
1 answer:
Viktor [21]3 years ago
3 0
3000   is the p-*5#%?"+(                                          
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Suppose the profit maximizing output is 160,000 smart rackets
hammer [34]

The attached graph shows the required curves to be drawn. One of the curves is called the Marginal Revenue Curve.

<h3>What is a marginal revenue curve?</h3>

At the market price, the marginal revenue curve is a horizontal line, suggesting completely elastic demand, and it is equal to the demand curve.

Monopoly occurs when one corporation is the exclusive vendor of a distinct product in the market.

Learn more bout marginal revenue curve at;
brainly.com/question/17049363
#SPJ1

Full Question:

The graph shows the market for smart rackets.

Suppose the​ profit-maximizing output is​ 160,000 smart rackets.

Draw the​ firm's marginal revenue curve. Label it MR.

Draw the​ firm's marginal cost curve. Label it MC.

Draw a point at the​ profit-maximizing output and price.

Draw a shape to show the​ firm's economic profit. Label it.

7 0
2 years ago
If the hypotenuse of a right triangle is 145 units long and the short leg is adjacent to the right angle is 17 units long, then
Vesnalui [34]

The length of the long leg of the triangle is 144 units

<h3>Pythagoras theorem</h3>

Pythagoras theorem is used to solve the sides of a right angle triangle and can be represented as follows;

  • c² = a² + b²

where

c = hypotenuse

a and b are the other legs.

Therefore,

145² - 17² = b²

b²  = 21025 - 289

b² = 20736

b = √20736

b = 144

Therefore, the length of the longer leg of the triangle is 144 units

learn more on Pythagoras theorem here: brainly.com/question/8511675

4 0
3 years ago
Ensuring food establishment interior does not need repair helps avoid:
Stells [14]
Physical contamination.
4 0
3 years ago
Read 2 more answers
Joan conducted a study to see how common binge drinking is on her college campus. She defined “frequent binge drinking” as havin
NeX [460]

Answer:

I used the function 1-proportion z-interval on the calculator, where I inputted

  • Successes(x) = 64
  • Sample size(n) = 593
  • Confidence Level(C level) = 0.99

It would result in zInterval_1Prop 64,593,0.99: stat.results, where the values are shown below as:

  • Lower bound (CLower) = 0.075105
  • Upper bound (CUpper) = 0.140747
  • test statistic (p^) = 0.107926
  • Margin of error (ME) = 0.032821

Therefore, the 99% confidence interval would be around 0.11 ± 0.03 or range from 0.08 to 0.14.

<em><u>Note: not sure if this is correct</u></em><em> O_o</em>

3 0
3 years ago
From 1975 to 1986, the general social survey asked its participants if they favored or opposed capital punishment. A least squar
snow_tiger [21]

Based on the information given, it should be noted that the slope cannot be interpreted as the equation makes no sense for the model.

<h3>Interpretation of the slope.</h3>

From the information given, the explanatory variable x was the year that the observations were taken.

In this case, the values are the integer number between 1975 and 1986. The y-intercept of the equation makes no sense for the prediction as it's not in the range of the explanatory data.

Learn more about models on:

brainly.com/question/3493733

5 0
3 years ago
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