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
katrin2010 [14]
3 years ago
15

A teacher would like to estimate the mean number of steps students take during the school day. To do so, she selects a random sa

mple of 50 students and gives each one a pedometer at the beginning of the school day. They wear the pedometers all day and then return them to her at the end of the school day. From this, she computes the 98% confidence interval for the true mean number of steps students take during the school day to be 8,500 to 10,200. If the teacher had used a 90% confidence interval rather than a 98% confidence interval, what would happen to the width of the interval
Mathematics
1 answer:
Helga [31]3 years ago
6 0

Answer:

The answer is "It would decrease, but not necessarily by 8%".

Step-by-step explanation:

They know that width of the confidence level is proportional to a confidence level. As just a result, reducing the confidence level decreases the width of a normal distribution, but not with the amount of variance in the confidence level. As just a result, when a person teaches a 90% standard deviation rather than a 98 percent normal distribution, the width of the duration narrows.

You might be interested in
What does 3/8 + 7/8=
ValentinkaMS [17]

Answer:

since the denominators are the same we add 3 and 7 in the numerator to get 10/8 or 1 2/8, and we can simplify to 5/4 or 1 1/4.

Hope this helps and brainliest please

5 0
2 years ago
Read 2 more answers
Write the ratio as a fraction in simplest form with whole numbers in the numerator and denominator 16 cm to 20 cm
emmainna [20.7K]

Answer:

4/5

Step-by-step explanation:

16/20 in a simpler form is 8/10. 8/10 in the simplest form is 4/5 (division)

8 0
2 years ago
Read 2 more answers
Solve for x.<br> 75°<br> 11x-2
DaniilM [7]

Answer:

x=7

Step-by-step explanation:

6 0
2 years ago
Which number is a factor of 51? Please asap <br> 7<br> 11<br> 26<br> 17
allsm [11]
Seventeen is your answer

6 0
3 years ago
Read 2 more answers
Write the equation of an exponential function that passes through the points (2,48) and (5,750).
Otrada [13]
Ok, so the function form is y = a * bx.
Substitute in the values:
750 = a * b5
and
48 = a * b2
Then divide the two equations:
750/ 48 = (a * b5) / (a * b2)
So:
15.625 = b3
Take the cube root of both sides:
2.5 = b
Now, substitue b into one of the equations (the one with 48 has smaller numbers and is easier to work with.)
48 = a * 2.52
Simplify.
48 = a * 6.25
Divide both sides by 6.25
7.68 = a
Now substitute in a and b to write the exponential function:
y = 7.68 * 2.5x
7 0
3 years ago
Other questions:
  • Need help with questions 17 and 18
    13·1 answer
  • What is the slant height x of this square pyramid? (Express your answer in radical form.)
    14·1 answer
  • To clean a fish tank, 2/3 cup of disinfectant is needed for every 3 gallons of water. How many cups of disinfectant is needed fo
    6·1 answer
  • Solve for x and y simultaneous<br>3x - 5y = 3<br>y-2x = 5<br><br>​
    6·1 answer
  • What is the solution for this equation
    11·1 answer
  • HELP PLS MATH WILL GIVE YOU BRANLYY
    15·2 answers
  • Solve for x: 3 − (2x − 5) −8<br><br>x &gt; −8<br><br>x −3
    12·1 answer
  • Divide the following numbers. -45/-5​
    11·2 answers
  • What are the zeroes of the function f(x)= 5x^2-25x/x
    8·1 answer
  • I need help fast plz
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!