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
attashe74 [19]
2 years ago
13

A researcher is interested in determining whether typists are most productive in the morning, at midday, in the evening, or late

at night. To answer this question, the researcher recruits 20 participants and assigns 5 participants to be measured at each time of day. To evaluate productivity, the researcher measures words typed per minute at each time of day.
Morning Midday Evening Night
99 42 80 82
80 32 83 78
99 45 94 79
98 49 70 97
79 38 79 96
Mean 91 41.2 81.2 86.4
SStotal = 9094.95
What are the degrees of freedom for the numerator of the F-ratio?
a. 2
b. 3
c. 16
d. 19
Mathematics
1 answer:
mojhsa [17]2 years ago
4 0

Answer:

d. 19

Step-by-step explanation:

Degrees of freedom is the number is the number of value which is used in the final calculation. It calculate as n-1, where n is the sample size. The degrees of freedom for the given scenario is 19. The sample size is 20 so the degrees of freedom is 1 less which will be 19.

You might be interested in
6x to the power of 2
nydimaria [60]
36(x squared) but I can’t write subscript on a phone
4 0
3 years ago
Ax + b2 = cx + d2<br> ????
ryzh [129]

Answer:

x=b^2+d^2/a-c

Step-by-step explanation:

5 0
2 years ago
From the figure and statement provided, select the proper TO PROVE Statement.
sergejj [24]

Answer: a is equal to b

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Need an answer thanks in advance​!
slamgirl [31]

Answer:

1806 seats.

Step-by-step explanation:

From the question given above, the following data were obtained:

Row 1 = 24 seats

Row 2 = 27 seats

Row 3 = 30 seats

Total roll = 28

Total number of seat =?

From the above data, we can liken the roll to be in arithmetic progress.

Also, we are asked to determine the total number of seats in the theater.

Thus the sum of the sequence can be written as:

Roll 1 + Roll 2 + Roll 3 +... + Roll 28 i.e

24 + 27 + 30 +...

Thus, we can obtain obtained the total number of seats in the theater by applying the sum of arithmetic progress formula. This can be obtained as follow:

First term (a) = 24

Common difference (d) = 2nd term – 1st term

Common difference (d) = 27 – 24 = 3

Number of term (n) = 28

Sum of the 28th term (S₂₈) =?

Sₙ = n/2 [2a + (n –1)d]

S₂₈ = 28/2 [2×24 + (28 –1)3]

S₂₈ = 14 [48 + 27×3]

S₂₈ = 14 [48 + 81]

S₂₈ = 14 [129]

S₂₈ = 1806

Thus, the number of seats in the theater is 1806.

6 0
2 years ago
Easy points !! HELP PLEASE
AnnyKZ [126]

Answer:

2 and 3

Step-by-step explanation:

The pair of angles that is complementary  are:

2 and 3

3 0
3 years ago
Read 2 more answers
Other questions:
  • Help me asap 24 points and will mark
    11·2 answers
  • A concrete stepping stone measures 20square inches.what is the area of 30 such stones
    15·1 answer
  • In which of the following circles are the approximate values of the area and circumference the same?
    10·1 answer
  • The Declaration of Independence was signed on July 4, 1776. The United States celebrated the bicentennial on July 4, 1976. How m
    13·2 answers
  • Can ya help me with this question
    7·1 answer
  • Enter the simplified version of the expression
    5·1 answer
  • The hart family drove 10 hours to their vacation spot. they drove an average of 48 miles each hour. how miles did they drive in
    9·2 answers
  • Calculus1 help involving graphs.
    13·1 answer
  • Solve the quadratic by factoring.<br><br> x^2-8x-25=-3x-1
    7·2 answers
  • The first 5 terms of a sequence are shown below:
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!