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
gregori [183]
1 year ago
5

a study was to be undertaken to determine if a particular training program would improve physical fitness. an srs of 31 universi

ty students was selected to be enrolled in the fitness program. one important measure of fitness is maximum oxygen uptake. measurements of oxygen uptake in untrained individuals are known to follow a normal distribution with a mean of begin mathsize 16px style mu end style
Mathematics
1 answer:
Nataliya [291]1 year ago
3 0

Step-by-step explanation:

A study was to be undertaken to determine if a particular training program would improve physical fitness. A sample of 31 university students was selected to be enrolled in the fitness program. The researchers wished to determine if there was evidence that their sample of students differed from the general population of untrained subjects. The sample mean is 47.4 and a standard deviation of 5.3. The 98% confidence interval is determined and is given as, (45.2, 49.6) .

If the level of confidence is changed to 95%, then the confidence interval will become shorter but the p-value will not change because it is calculated using the test statistic. So the correct answer is (a).

You might be interested in
What two integers is square root 50between
lilavasa [31]
√50 lies between 7 and 8.
8 0
3 years ago
Please help!! (math)
olga55 [171]

Bro answer.

Step-by-step explanation:

This is the step of doing this so write this in class 10 we do like this ok

7 0
2 years ago
Mrs. Hoffnagle's class is practicing skip counting by 30's . The first student said 30, the second said 60, and the third said 9
nadezda [96]

Answer:

120

Step-by-step explanation:

It’s like counting by 3’s and adding a 0

3,6,9,12

30,60,90,120

3 0
3 years ago
Find the perimeter.
Lorico [155]

Answer:

12x+9

Step-by-step explanation:

We may find the perimeter of a shape by adding all of it's side lengths.

We can start by adding 2 sides together.

(5x+2)+(3x+8)=8x+10

Because we don't know the value of x, we can only add together the amount of times that it is multiplied.

Now we add the final side.

(8x+10)+(4x-1)=12x+9

Hope this helps friend.

4 0
2 years ago
Read 2 more answers
Assessment timer and count Assessment items What are the square roots of 36/100 ? − 9/25 and 9/25, − 6/10 and 6/10, − 18/50 and
Tasya [4]
The answer is B. Take the square root of both the numerator and denominator of a fraction.

6 0
3 years ago
Other questions:
  • Find the product and express your answer in scientific notation. (1.3 x 10-6)(4 x 1010)
    12·1 answer
  • Centered 7 meters above the ground, a Ferris wheel of radius 6 meters is rotating with angular speed 24 degrees per second.
    6·1 answer
  • Find the volume of a cylinder with a height of 6 cm and a radius of 3 cm.
    9·1 answer
  • A salesman gets a commission of 2.4% on sales up to sh. 100,000. He gets an additional commission of 1.5% on sales above this. C
    15·1 answer
  • Hellllp me with this plz thaks
    9·1 answer
  • DONT FORGET TO GRAPH IT!! ALL QUESTIONS THAT DONT ANSWER MY QUESTION, WILL BE REPORTED!
    6·1 answer
  • Choose the value of x for f(x)= x^2-3x when f(x) = 10.
    6·1 answer
  • 1) Determine the rate of change for the table below: 2) Determine the equation of the line (using slope-intercept form) that int
    12·1 answer
  • Describe the end behavior of the function.<br><br><br> f(x)=3(1/5)^x-2
    11·2 answers
  • Please help now<br> Pic below
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!