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
Triss [41]
4 years ago
7

Suppose that, based on a sample, the 99.7% confidence interval for the mean of a population is (59,95). What is the mean of the

sample?
Mathematics
1 answer:
Georgia [21]4 years ago
4 0

Answer:

mean = 77

Step-by-step explanation:

We have a confidence interval of (59, 95) with a confidence of  99.7 percent


99.7 is 6 standard deviations from the mean, 3 on each side of the mean

mean - 3 sigma = 59

mean + 3 sigma = 95

We can use elimination to eliminate sigma.  Add these equations together

mean - 3 sigma = 59

mean + 3 sigma = 95

---------------------------------

2 * mean = 154

Divide each side by 2

2 * mean/2 = 154/2

mean = 77

You might be interested in
207 divided by 214 in short divison how do i do this?
jek_recluse [69]

Answer:

your answer should be 0.96

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Each wheel of gias bicycle is 24 inches in diameter gia rides her bike 1,884 feet to the nearest whole number how many times doe
cupoosta [38]

The wheel turned a total of 300 times in 1,884 feet.

Step-by-step explanation:

Step 1:

The wheels of the bicycle have a diameter of 24 inches. So the radius of the wheels is 12 inches.

To determine how many times the wheel turns we divide the distance traveled by the circumference of the wheels.

The circumference of a circle is given by multiplying 2π with the radius.

The circumference of the wheel = 2(3.1415)(12) = 75.396.

The circumference of the wheel is 75.396 inches.

Step 2:

Gia traveled 1,884 feet, we need to convert this into inches.

If 1 feet = 12 inches, 1,884 feet = 22,608 inches.

The number of times the wheel turned \frac{22,608}{75.396} = 299.8567.

Rounding this off, we get that the wheel turned a total of 300 times in 1,884 feet.

6 0
3 years ago
How did you identify the line of sight, angle of elevation and angle of depression?
Arturiano [62]

Answer:

The term angle of elevation denotes the angle from the horizontal upward to an object. An observer's line of sight would be above the horizontal. The term angle of depression denotes the angle from the horizontal downward to an object. An observer's line of sight would be below the horizontal.

Step-by-step explanation:

ヾ(^-^)ノ

7 0
2 years ago
Help, I’m really tired after a flight and I can’t do this please help me
maxonik [38]

Answer:

they r all the same shap but that is all I know

5 0
3 years ago
55 is 20% of what numeber
kolbaska11 [484]
The answer is 275. hope it helps :)
4 0
2 years ago
Other questions:
  • Factor -24a3b3c3 - 84a4b2c.
    8·2 answers
  • How is 1/4 in porcent?
    11·2 answers
  • What’s the answer to 19=3w+7
    13·1 answer
  • NEED THE ANSWER ASAP THANKS!!!!!!
    11·2 answers
  • The perimeter of an isosceles triangle is 12a + 8b
    8·1 answer
  • What is the value of x in the equation -5/4x=-160
    9·2 answers
  • Sam deposited $400 into her savings account that earned 4.5% interest per year. How much money did she have after 2.5 years?
    15·1 answer
  • Which equation represents g(x)? The graph of g(x) is a reflection and translation of f(x) = x O g(x) = x + 1 F O g(x) = 3x - 1 5
    11·1 answer
  • Model with Math Find the distance from Alberto's horseshoe to Rebecca's horseshoe. Explain.​
    15·2 answers
  • Watch help video
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!