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
Lady bird [3.3K]
3 years ago
10

3. A researcher randomly selects a sample of 61 former student leaders from a list of graduates of UNCG who had participated in

leadership positions while a student. She discovered that it has taken an average of 4.97 years for these student leader graduates to finish their degrees, with a standard deviation of 1.23. The average for the entire student body is 4.56 years. Is the difference between student leaders and the entire student population statistically significant at the alpha
Mathematics
1 answer:
Sophie [7]3 years ago
3 0

Answer:

not statistically significant at ∝ = 0.05

Step-by-step explanation:

Sample size( n )  = 61

Average for student leader graduates to finish degree ( x') = 4.97 years

std = 1.23

Average for student body = 4.56 years

<u>Determine if the difference between the student leaders and the entire student population is statistically significant at alpha</u>

H0( null hypothesis ) : u = 4.56

Ha : u ≠ 4.56

using test statistic

test statistic ; t = ( x' - u ) / std√ n

                        = ( 4.97 - 4.56 ) / 1.23 √ 61

                        = 2.60

let ∝ = 0.05 , critical value = -2.60 + 2.60

Hence we wont fail to accept  H0

This shows that the difference between the student leaders and the entire student population is not statistically significant at ∝ = 0.05

You might be interested in
For which value of x is xyza a rectangle
lisabon 2012 [21]
Well each angle in a rectangle is 90°, so if x is an angle, it's 90°

I hope that helps!
7 0
3 years ago
a taxi costs 3.00 for every mile traveled, to enter a cab the is an initial charge of 4.50. write an equation where t represents
vodomira [7]

Answer:

t = 4.50 + 3.00m

3 0
2 years ago
Which is a memory strategy?
scZoUnD [109]

Answer:

one memory strategy is looking at your notes twice a day and adding or taking away from them, highlighting helps a lot

i hope i helped bebe

Step-by-step explanation:

8 0
3 years ago
Apply the distributive property to create an equivalent expression.<br><br> ​ <br> 1/2 (2a−6b+8) = ?
katen-ka-za [31]

Answer:

a-3b+4

Step-by-step explanation:

1/2 (2a−6b+8) =

=1/2*2a-1/2*6b+1/2*8

=a-3b+4

5 0
3 years ago
Read 2 more answers
I need help solving this , help !
marin [14]

Answer:

NO

Step-by-step explanation:

Triangle A suggests that the triangle is isosceles.

Isosceles:

Triangle with two congruent angles and sides:

7 , 6 , 7

5 , 4 , 5

9, 12 , 9

Triangle B suggests that the triangle is scalene.

Scalene:

Triangle with no congruent angles or sides:

5 , 6 , 7

10 , 15 , 7

12 , 18 , 21

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

6 0
3 years ago
Other questions:
  • Item 5Find the percent of the number.175% of 54 is .
    6·1 answer
  • a camera droppeed from a boat descends 9 meters every minute. What will be the change in location of the camera afterb5 minutes?
    7·2 answers
  • Ally is making a scale diagram of her classroom. She uses a scale factor of 3 centimeters per foot to draw the diagram. The actu
    8·1 answer
  • Suppose that 20% of the adult women in the United States dye or highlight their hair. We would like to know the probability that
    15·1 answer
  • (x-3)(x2+2x+7)<br> Simplified
    7·1 answer
  • How does place value help me subtract decimals?
    13·1 answer
  • Find the slope between (1,5)(3,9)
    6·1 answer
  • Please answer both questions, thanks!
    10·2 answers
  • Please solve math problem for me... I will mark you brainliest
    9·1 answer
  • an outfielder throws a ball to home plate. the balls path is modeled by the graph of y=x/5-x^2/1000 where x represents the horiz
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!