1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
insens350 [35]
2 years ago
7

Dr. M wanted to estimate the mean cholesterol level for men living in Hartford. He took a sampled of 20 men from Hartford and fo

und that mean cholesterol level is 86 with a standard deviation of 12. He wants to construct a 99 % confidence interval for mean cholesterol level of men.
In this case, the level of significance a and the critical value?​
Mathematics
1 answer:
Gekata [30.6K]2 years ago
4 0

Answer:

answer is in an image here

imageshare.best/image.php?id=JS9NDO

Explanation:

copy n paste in browser

not a bot btw

You might be interested in
Evaluate: \frac{23}{56} + \frac{3}{8} - ( - \frac{4}{28} )
MrMuchimi
I think this is what you mean. I don't know why the Latex didn't work. Good for you that you can use it.

\frac{23}{56} +  \frac{3}{8} - \frac{-4}{28}
\frac{23}{56} + \frac{3}{8} - \frac{-4}{28} Reduce the 4/28 to 1/7
\frac{23}{56} + \frac{3}{8} - \frac{-1}{7} Make the 2 minuses into a +
\frac{23}{56} + \frac{3}{8} + \frac{1}{7} 56 is the common denominator.
\frac{23}{56} + \frac{21}{56} + \frac{8}{56}

Answer = [23 + 21 + 8] / 56 = 52 / 56 = 13 / 14 When both numerator and denominator are divided by 4

13 / 14 <<<< answer.
5 0
3 years ago
Please help me with this I will give u 100 points
ValentinkaMS [17]

Answer:

see below

Step-by-step explanation:

Video Game

20% off means you pay 80%

80 dollars * 80% =

80 * .80 = 64

Movie ticket

14 original price

Sale price = 11.40

14* p% = 11.40

Divide each side by 14

p% = 11.40/14

p% =81.4285714

You paid 81 3/7%

The discount is 100 -81 3/7%

18 4/7 % discount

Laptop

1000 original price

Sale price = 750

1000 * p% = 750

p% = 750/1000

p% =75%

You paid 75%

The discount is 100 -75%

25 % discount

5 0
3 years ago
Read 2 more answers
The first step for deriving the quadratic formula from the quadratic equation, 0 = ax2 + bx + c, is shown. Step 1: –c = ax2 + bx
Goshia [24]

Answer:

Subtract c from each side, using the subtraction property of equality

Step-by-step explanation:

0 = ax^2 + bx + c

Subtract c from each side, using the subtraction property of equality

-c = ax^2 + bx + c-c

-c = ax^2 + bx

4 0
3 years ago
Read 2 more answers
Larry the librarian and Courtney the lawyer are having a debate. Larry contends that the library is bigger than the courthouse i
professor190 [17]

Answer:

Library's Area= 5200

Courthouse' Area= 5027

<u>Larry</u> is correct.

Step-by-step explanation:

5 0
3 years ago
PLEASE NEED HELP NOW!!!!!!!❤️
alexira [117]

Answer:

A. 2564 cm^2

Step-by-step explanation:

There are two triangles (Which both are the same) and three different rectangles.

1. Let's solve the area of the triangles first!

Formula: bh(1/2)

10(26)(1/2)

130

2. Now, let's multiply by 2 since there's two of them:

130(2) = 260

3. So, we got 260. Let's find the area of the three rectangles!

Formula: bh

Rectangle A: 28(36) = 1008

Rectangle B: 10(36) = 360

Rectangle C: 26(36) = 936

4. Add the area of the triangles and the rectangles!

260 + 1008 + 360 + 936 = 2564

So the surface area is 2564 cm^2

Hope this helps! <3

4 0
3 years ago
Other questions:
  • When is it necessary to use three points to name an angle? If CP bisects and DPB , what is the measure of angle CPB?
    10·1 answer
  • The sum of 4 consecutive odd numbers is 40. What is the 2nd number in this sequence?
    15·1 answer
  • Answer please I need help I have so much to do
    11·2 answers
  • Which graph correctly represents <br> x + 2y ≤ 4?
    11·1 answer
  • Is defined if the number of columns in the first matrix is equal to the number of rows in the second matrix?
    10·1 answer
  • What is 6×2/8 equal​
    8·2 answers
  • X= y-3, then (y-x)^3
    5·1 answer
  • Two tracking stations are on the equator 158 miles apart. A weather balloon is located on a bearing of N42°E from the western st
    11·2 answers
  • Tanx cscx= 1/f(x)<br>simplify and write the trigonometric expression in terms of sine and cosine​
    14·1 answer
  • what is the answer to the circumference of the base of a cylinder with a diameter of 6cm and height of 12cm
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!