help :) pls and thank you

Answer:

Step-by-step explanation:

A simple random sample of size n is drawn from a population that is normally distributed. The sample​ mean, x​, is found to be 108​, and the sample standard​ deviation, s, is found to be 10. ​(a) Construct a 96​% confidence interval about μ if the sample​ size, n, is 17. ​(b) Construct a 96​% confidence interval about μ if the sample​ size, n, is 12. ​(c) Construct a 90​% confidence interval about μ if the sample​ size, n, is 17. ​(d) Could we have computed the confidence intervals in parts​ (a)-(c) if the population had not been normally​ distributed?

Answer:

24.5

Step-by-step explanation:

Since 180 is double 90 divide 45 by 2 and you'll get 24.5

Answer:

3

Step-by-step explanation:

Answer:

0.02987 %

Step-by-step explanation:

2.987 / 100 = 0.02987 %

Answer:

C) x ≥ 0 and y ≥ 0

0.5x + y ≤ 500

x + 1.5y ≤ 800

Step-by-step explanation:

A children clothing manufacturer has 500 yards of material to make shirts and skirts. A shirt requires 0.5 yards of fabric, and a skirt requires 1 yard of fabric. It takes 1 hour to make a shirt and 1.5 hours to make a skirt. The manufacture has 800 hours available to make shirts and skirts.

Which system of inequalities represent the constraints for this situation? Let x = number of shirts, and let y = number of skirts.

A) x ≤ 0 and y ≤ 0

0.5x + y ≤ 800

x + 1.5y ≤ 500

B) x ≤ 0 and y ≤ 0

0.5x + y ≥ 800

x + 1.5y ≥ 500

C) x ≥ 0 and y ≥ 0

0.5x + y ≤ 500

x + 1.5y ≤ 800

D) x ≥ 0 and y ≥ 0

0.5x + y ≥ 500

x + 1.5y ≥ 800

number of shirts,x and number of skirts,y must be greater than 0 since it can not be a negative value

x ≥ 0 ; y ≥ 0

Inequality for number of yards

x = 0.5 yards ; y = 1 yard

Total yards = 500

The inequality is

0.5x + y ≤ 500

Inequality for hours of production

x = 1 hour ; y = 1.5 hours

Total available hours for production = 800

The inequality is

x + 1.5y ≤ 800

Therefore, the system of inequalities which represent the constraints for this situation is

x ≥ 0 ; y ≥ 0

0.5x + y ≤ 500

x + 1.5y ≤ 800

x ≥ 0 and y ≥ 0

0.5x + y ≤ 500

x + 1.5y ≤ 800

When graphed the system shows that the manufacturer should make 200 shirts and 400 skirts for a maximum profit.

Answer:

110°

Step-by-step explanation:

just add 85+25 and that's equal to 110°

Answer:  E is located at (-2, 6)

Explanation:

The rule for reflecting over y = x is [tex](x,y) \to (y,x)[/tex]

The x and y coordinates swap places.

Point E' is located at (6, -2) so that means point E must be located at (-2, 6)

Answer: -0.619

Step-by-step explanation:

Answer:

FE is greatest, GF is second, and GE is least. Flip it around bc Im dumb and did greatest to least and you get

GE then GF then FE, which is A

Step-by-step explanation:

The higher the opposite angle, the higher the side length.

Answer:

Step-by-step explanation:

Answer:

5841 minutes

Step-by-step explanation:

first divide 18 by 4 giving you 4.5 minutes

next add the page number of all the books (excluding The Hunger Games) giving you 1298 pages

and finally multiply 4.5 by 1298 giving you 5841

hope this helped!

Answer:

The slope is m = -1

Step-by-step explanation:

Use the slope formula:

m=y2-y1/x2-x1

= -0-(-2)/-2-0

= 2/-2

= -1

Hope this helps!!!

Answer:

slope is -1

Step-by-step explanation:

Given:

A container holds 4 gallons of lemonade.

A large lemonade contains 16 ounces.

To find:

The number of large lemonades that the restaurant can cell before they ran out of lemonade.

Solution:

We know that,

1 gallon = 128 ounces

4 gallon = 512 ounces

So, a container holds 512 ounces of lemonade.

A large lemonade contains 16 ounces. So,

[tex]\text{Number of large lemonades}=\dfrac{\text{Total lemonade in container}}{\text{Lemonade in a large container}}[/tex]

[tex]\text{Number of large lemonades}=\dfrac{512}{16}[/tex]

[tex]\text{Number of large lemonades}=32[/tex]

Therefore, the required number of lemonades is 32.

Solve for y.

8x−4y=16

-4y = -8x + 16

y = (-8x + 16)/-4

y = (-8x)/-4 + (16/-4)

y = 2x - 4

We only need two points to graph linear equations.

Now let x be 0 and solve for y.

y = 2(0) - 4

y = -4

This leads to the point (0, -4).

We need another point.

Let y = 0 and solve for x.

0 = 2x - 4

4 = 2x

4/2 = x

2 = x

This leads to the point (2,0).

Plot these two points on the xy-plane and connect the points with a straight line.

I'll let you do that.

Understand?

Answer:

$160

Step-by-step explanation:

These discounts would be added one after the other. Therefore, we would first apply the first discount of 1/3 to the original price. Since it is a discount it means that from the original price we would pay 2/3. We do this by multiplying this fraction by the original price like so...

$320 * (2/3) = $213.33

Now we add the second discount of 1/4. Again, since it is a discount it means that we would be paying 3/4 of the current price.

$213.33 * 3/4 = $160

Finally, we can see that Sally would have ended up paying $160 for the TV.

Answer:

I think 3

Step-by-step explanation:

I'm not totally for sure about it though. sorry :(

Answer:

Triangle sum theorem

Step-by-step explanation:

Answer:

4,left,4,down

Step-by-step explanation:

Answer:

4 units to the left and 4 units down

Step-by-step explanation:

(1,5)-4 units to the left is x value of -3

and (-3,5) 4 units down is y value of 1

Answer:

f(5)=12

Step-by-step explanation:

Replace all x by 5

f(5)=3(5)-2

multiply 3 and 5 together

f(5)=15-2

Simplify:

f(5)=13

Hope this helps!

Answer:

[tex]f(5) = 3(5) - 2 = 15 - 2 = 13[/tex]

Step-by-step explanation:

Hello. Just exchange x with 5.

Well first-

Mason planted 12 bushes in one hour, so basically all you have to do is multiply the amount of bushes planted in a hour (12) by the hours (3) so-

12 x 3 = 36 plants for 3 hours

your welcome :)

Answer:

42

Step-by-step explanation:

2x+204=180

2x= -24

x= -12

-12+54=42

The required approximate sample mean salary is $17750.725.

To approximate the sample mean, we first need to find the midpoint of each salary range and then multiply it by the number of employees in that range to get the total salary for that range. Then we can sum the total salaries and divide by the total number of employees to get the sample mean.

The midpoint of each salary range can be found by taking the average of the lower and upper bounds of the range. For example, the midpoint of the first range (3.001-10,000) is (3.001 + 10,000) / 2 = 5001.5005.

Using this approach, we can construct the following table:

Salary (5) Employees Midpoint Total Salary

3.001-10,000 14 5001.5005 70021.007

10.001-15,000 16 12500.5000 200008.000

15.001-20,000 14 17500.5000 245007.000

20.001-25.000 17 22500.5000 382511.500

25.001-30.000 19 27500.5000 522510.500

To find the sample mean, we add up the total salaries and divide by the total number of employees:

[tex]$\bar{x} = \frac{\sum_{i=1}^n x_i}{n} = \frac{70021.007 + 200008.000 + 245007.000 + 382511.500 + 522510.500}{14 + 16 + 14 + 17 + 19} \approx 17750.725$[/tex]

Therefore, the approximate sample mean salary is $17750.725

To know more about Mean visit:

brainly.com/question/11822836

#SPJ1

Answer:

3.9375oz

i think this is right

Answer:

2.66666666667

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

This question was not properly written

Complete Question

Every time Luisa bakes a batch of brownies she uses 1/2 cup of chocolate if she has 3/2 cups of chocolate remaining how many batches of brownies can Luisa make

Answer:

3 batches of brownies from 3/2 cups of chocolate left.

Step-by-step explanation:

From the question, we know that:

1/2 cups of chocolate = 1 batch of brownies

3/2 cups of chocolate = x

Cross Multiply

1/2 × x = 3/2

x = 3/2/1/2

x = 3/2 × 2/1

x = 3 batches.

Approximately as a whole number , he can make 3 batches of brownies from 3/2 cups of chocolate left

Answer:

3/4

Step-by-step explanation:

take rise / run or find 2 points and apply slope formula

Topic: coordinate geometry

If you like to venture further, feel free to check out my insta (learntionary). I'll be constantly posting math tips and notes! Thanks!

Answer:

[tex]m=\frac{3}{4}[/tex]

General Formulas and Concepts:

Pre-Algebra

Algebra I

Step-by-step explanation:

Step 1: Define

Find points from the graph.

Point (0, -1)

Point (4, 2)

Step 2: Find slope m

And we have our final answer!

Answer:

(-1, 2)

Step-by-step explanation: