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
zavuch27 [327]
3 years ago
5

You are planning to evaluate the mean of a single continuous variable from a study with a sample of n =10 using the t statistic.

What are the degrees of freedom for the sample?a. 11b. 9c. 10d. 8With another study, where you also plan on evaluating a mean using the t statistic, you have sample of n =31 that has as SS of 120. What is the variance for the sample?a. 10.95b. 14,400c. 4d. 2.00For a sample of n =25 that has a sample variance of 400, what is the estimated standard error for the sample?a. 16b. 17c. 4.08d. 4
Mathematics
1 answer:
nexus9112 [7]3 years ago
5 0

Answer:

a) b. 9

b) c. 4

c) d. 4

Step-by-step explanation:

You are planning to evaluate the mean of a single continuous variable from a study with a sample of n =10 using the t statistic. What are the degrees of freedom for the sample?a. 11 b. 9 c. 10 d. 8

The formula for degree of freedom

= n - 1

n = 10

Degrees of freedom for the sample = 10 - 1

= 9

Option b is correct.

b) With another study, where you also plan on evaluating a mean using the t statistic, you have sample of n =31 that has as SS of 120.

What is the variance for the sample?a. 10.95 b. 14,400 c. 4 d. 2.00

The formula for Variance of a samples = SS(Sum of squares) /n - 1

n = 31

Variance of samples = 120/31 - 1

= 120/30

= 4

Option c is correct

c) For a sample of n =25 that has a sample variance of 400, what is the estimated standard error for the sample?a. 16 b. 17 c. 4.08 d. 4

The formula for standard error =

Standard deviation/√n

We are given Sample variance.

Standard deviation = √400

= 20

Hence, Standard Error = 20/√25

= 20/5

= 4

Option d is correct.

You might be interested in
Maya is the manager for the track team. She created a table to compare finish times from the second practice to the first
Oksi-84 [34.3K]

Answer:

Runners that decrease times are not improving

Step-by-step explanation:

4 0
3 years ago
0.032 0.90 0.088 from greatest to least
ioda

Answer:

0.9 , 0.088 , 0.032

Step-by-step explanation:

0.9 --> 1st greatest

0.088 --> 2nd greatest

0.032 --> 3rd greatest

So, 0.9 , 0.088 , 0.032

5 0
2 years ago
10 more than the quotient of c and 3
Katen [24]

10 +  \frac{c}{3}

4 0
2 years ago
Which situation can be represented by the expression 5−8
Iteru [2.4K]

Answer:

The answer is C.)

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Consider line A whose equation is y = -10x + 8. If line B is perpendicular to line A and has a y-intercept at y = 3, what is the
r-ruslan [8.4K]

Answer:

C) . y=(1/10)x+3

Step-by-step explanation:

Given the equation of the line is y=-10x+8

It is in the form of y=mx+c where m is the slope of the line. Now on comparision we get m1=-10.

We knoew that two lines are perpendicular iff the product of their slopes is equal to -1.

m1*m2=-1

the slope of the recquired line =\frac{-1}{-10}=\frac{1}{10}

The equation of a line is typically written as y=mx+b where m is the slope and b is the y-intercept

Given the y intercept of the recquired line (b)=3

The recquired line is

y=mx+b

y=(1/10)x+3

7 0
3 years ago
Other questions:
  • Can anyone tell me what the answer is? PLEASEEE!!
    7·1 answer
  • in a certain chemical the ratio of zinc to Cooper is 4 to 19 A jar of the chemical contains 760 grams of cooper how many grams o
    15·1 answer
  • Which of the following is used to cut different shapes edges on a wooden cabinet door
    7·2 answers
  • Which is the solution to the inequality? y + 15 less-than 3 y less-than negative 12 y greater-than negative 12 y less-than 18 y
    12·2 answers
  • Plz help me ASAP! Answer the question in the picture below. Explain all of your steps.
    6·1 answer
  • Which underfined geometric term can be described as a one dimensional
    14·1 answer
  • If U = {x: X € N, 1 < × < 15)
    5·1 answer
  • The hexagon below has been reduced by a scale factor of One-third.
    5·1 answer
  • How to write “6 times the quantity two x plus three y” in a Algebraic expression.
    13·2 answers
  • If the simple interest on ​$4000 for 2 years is ​$400​, then what is the interest​ rate?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!