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
vredina [299]
3 years ago
15

18. Use the given degree of confidence and Sample data to find a confidence interval for the population standard deviation. Assu

me that the population has a normal distribution. Round feet confidence interval limits to the same number of decimal places as the sample standard deviation.
Weights of men: 90% confidence; n=14, x=161.0 lb, s=10.9 lb
I know the answer but I need help with the steps
Mathematics
1 answer:
sdas [7]3 years ago
4 0

Answer:

8.3 < σ < 16.2

Step-by-step explanation:

The population variation can be estimated between:

(n−1) s² / χ²α/2 < σ² < (n−1) s² / χ²(1−α/2)

At 90% confidence and 13 degrees of freedom, χ²α/2 = 22.4 and χ²(1−α/2) = 5.89.

(14−1) 10.9² / 22.4 < σ² < (14−1) 10.9² / 5.89

69.0 < σ² < 262.2

8.3 < σ < 16.2

You might be interested in
. Which expression is equivalent to 4 – (−7)?
sladkih [1.3K]
The answer A. 7 + 4 because it’s equal to 11 and 4-(-7) is 11
8 0
3 years ago
Karim Corp. requires a minimum $8,600 cash balance. Loans taken to meet this requirement cost 1% interest per month (paid monthl
Oxana [17]

Answer:

Step-by-step explanation:

Karim Corp. requires a minimum $8,600 cash balance. Loans taken to meet this requirement cost 1% interest per month (paid monthly). Any excess cash is used to repay loans at month-end. The cash balance on July 1 is $9,000, and the company has no outstanding loans. Forecasted cash receipts (other than for loans received) and forecasted cash payments (other than for loan or interest payments) follow. Cash receipts Cash payments July $ 24,600 28,900 August $32,600 30,600 September $ 40,600 32,600 Prepare a cash budget for July, August, and September. (Negative balances and Loan repayment amounts (if any) should be indicated with minus sign. Round your final answers to the nearest whole dollar.) KARIM CORP. Cash Budget For July, August, and September July August $ 9,000 September Beginning cash balance Total cash available Preliminary cash balance Ending cash balance Loan balance $ 0 Loan balance - Beginning of month Additional loan (loan repayment) Loan balance - End of month

8 0
3 years ago
I need help please and thank you
lianna [129]

Answer:

Rectangle EFGH = 875

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Wrote the volume of each figure and the number sentence you used to find it. Then Circle the card that would win the round of pr
Lunna [17]

Answer:

11cm

Step-by-step explanation:

You have to add them all up

3 0
3 years ago
Read 2 more answers
What is the difference between the perimeter of the bigger<br> rectangle and smaller rectangle?
harina [27]

The difference between the perimeters of the two rectangles will be 4x + 3

The formula for the perimeter of rectangle is given as :

                P = 2(L + B)

           Where P = perimeter of the rectangle

                       L = length of the rectangle

                       B = breadth of the rectangle

Now we have given two rectangle on is smaller than the other.

To find the difference between the perimeter of the two rectangles. We will first calculate the perimeter of both the rectangle.

Perimeter of the bigger rectangle = 2( 5x + 3 + 2x)

                                                            = 2(7x + 3)

                                                             = 14x + 3

Perimeter of the smaller rectangle = 2(2x + 3x)

                                                              = 2*5x

                                                              =10x

Difference between the two perimeters = (Perimeter of the bigger rectangle) – (Perimeter of the smaller rectangle)

                                                                      = (14x + 3) – 10x

                                                                      = 4x + 3

Thus the difference between the perimeters of the two rectangle will be 4x + 3

Learn more perimeters of the rectangle here : brainly.com/question/17297081

#SPJ9

4 0
2 years ago
Other questions:
  • How do you find the area of a figure
    5·1 answer
  • If 3x-1&gt;26, then which of the following is the smallest possible integer value of x?
    11·1 answer
  • The Great Wall is more than 20,000 kilometers long about 3/4 of it is considered properly preserved
    10·1 answer
  • What is the value of the digit 4 in this number? Write your answer in number form.
    6·2 answers
  • (10pts) A train left a station at 8:00 am
    13·1 answer
  • Find the surface area of the pyramid. The side lengths of the base are equal.
    15·1 answer
  • Please help quickly what's the answer Ill give u brainlest
    11·1 answer
  • A rectangle has an area of 230.86 square inches. The height of the rectangle is 23.8 inches.
    7·1 answer
  • If you can help me with these 4 questions I'll give you brainliest :))​
    6·2 answers
  • Help me with this question pls ​
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!