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
likoan [24]
3 years ago
10

A 90% confidence interval for the average weight (in pounds) of Americans was found to be (185, 210). The point estimate for thi

s confidence interval is:_______
a. 25
b. 12.5
c. 197.5
d. 1.645
Mathematics
1 answer:
Lynna [10]3 years ago
3 0

Answer:

B. 12.5

Step-by-step explanation:

We have the lowe confidence interval = 185

The upper confidence interval = 210

Mean of X = (lower confidence + upper confidence interval)/2

Mean of X = 185 + 210/2

= 197.5

The margin of error = the upper confidence interval - mean of X

= 210-197.5

= 12.5

You might be interested in
Someone help me I will mark you the brainiest
love history [14]

Answer:

i think the answer b its pretty close

Step-by-step explanation:


7 0
4 years ago
A triangle weighs 3 grams, and a circle weighs 6 grams. Use this applet to help find the weight of a square.
lesya [120]

Answer: 3.75 g

Step-by-step explanation:

Assume the weight of the square is x.

The hanger is in balance so the left side is equal to the right side.

Equation therefore is:

Triangle + Square + 3 * circle = 5* square + circle

3 + x + (3 * 6) = 5x + 6

3 + x + 18 = 5x + 6

5x - x = 3 + 18 - 6

4x = 15

x = 15/4

x =  3.75 g

7 0
3 years ago
CAN ANYONE PLEASE HELP ME WITH MY HOMEWORK ILL DO ANYTHING JUST PLEASE HELP ME
nasty-shy [4]

Answer:

9

Step-by-step explanation:

4x9=36

5x9=45

6x9=54

7x9=63

(:

5 0
3 years ago
Read 2 more answers
The number of applicants to a university last year was 11,450. This year, the number of applicants grew by 2%. How many applican
Vitek1552 [10]

Answer:

11679

Step-by-step explanation:

Increased by 229

First you need to find the 2%

So to find the 2%

2/100 * 11450=229

Now add 11450+229= 11679

4 0
3 years ago
Read 2 more answers
A dollar bill is worth _____ pennies. When written in decimal format, each penny can be written as ______ of a dollar.
Mkey [24]
One dollar is 100 pennies. In decimal for, each penny can be written as .01
.99 would be 99 cents. One more would make 1.00, or 1 dollar
Your answers are, (100, Hundredth)
4 0
3 years ago
Read 2 more answers
Other questions:
  • Can anyone help out with these two questions?
    13·1 answer
  • Some one help me with this.
    6·1 answer
  • A patio is designed using two types of tiles. The tiles are similar isosceles triangles. The lengths of the sides of the larger
    14·1 answer
  • The table gives the boiling point of water at different altitudes.
    13·2 answers
  • A bridge 48m tall.a scale model of the bridge 37cm long and 12cm tall .how long is the actual bridge .
    15·1 answer
  • What are the outliers of 42,43,46,48,57,60,96,59,38,68,29
    15·1 answer
  • On weekdays, a bakery sells 240 cupcakes per day. If the bakery sells 330 cupcakes per day on weekends, by what percent do the s
    13·1 answer
  • 5. Give an example of a possible answer that follows the form a=b
    11·1 answer
  • Simplified decimal of 60/9
    6·2 answers
  • In one week a shop buys 15 bottles of soy sauce at a price of Rp. 127,500. If on
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!