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
pishuonlain [190]
3 years ago
9

If an experimenter conducts a t test for independent means and rejects the null hypothesis, the correct interpretation is that:

a. the variance of one sample is so much larger than the variance of the other sample that the variances of the parent populations must not have been the same after all b. the mean of one sample is statistically the same as the mean of the other sample, so they probably come from populations with equal means c. the samples were from populations that were actually dependent rather than independent d. the mean of one sample is so far from the mean of the other sample that the samples must come from populations with different means
Mathematics
1 answer:
lisabon 2012 [21]3 years ago
4 0

Answer:  C

Step-by-step explanation:

Rejecting the null hypothesis means we've found a significant difference in the means.  That means the probability that we'd see means so far apart by chance is less than our threshold of significance.

You might be interested in
Sheryl spends ​$ 12 every week on cigarettes and spends ​$ 23 a month on dry cleaning. On an annual​ basis, the money spent on c
Lera25 [3.4K]

Answer:

just for the points

Step-by-step explanation:

6 0
2 years ago
Question 6(Multiple Choice Worth 1 points)
Dafna11 [192]

Answer:

O The value of f(2) is smaller than the value of f(1).

Step-by-step explanation:

First, let's solve for both. When the problem says f(1) or f(2), this just means that the x value is equal to that. So:
f(1) = -5(1)^2 + 2(1) + 9 = 6
f(2) = -5(2)^2 + 2(2) + 9 = -7
Since f(1) = 6 and f(2) = -7, we know that f(1) is greater than f(2). Therefore, the value of f(2) is smaller than the value of f(1)

3 0
2 years ago
Do tessellations have to be polygons?
den301095 [7]
Its the last one, the shapes but be polygons.
8 0
3 years ago
What are the twin prime numbers of 99 -199​
Naddika [18.5K]

Answer:

Therefore, the pairs of twin-prime numbers are (101,103) , (107,109) , (137,139) , (149,151) , (179,181) , (191,193) , (197,199) . So, the correct answer is “ (101,103) , (107,109) , (137,139) , (149,151) , (179,181) , (191,193) , (197,199) ."

4 0
2 years ago
Find the mean and range. 18 23 10 39 22 17 16 15
stepan [7]

Answer:

Hey there the answer to your question will be below

Step-by-step explanation:

Mean=20

Range=29

___________________________________________________

Range:

Xmas = 39 and Xmas = 10

39-10=29

____________________________________________________

Mean:

160/8 = 20

Hope that helps!

By: xBrainly

7 0
3 years ago
Other questions:
  • Represent the proportional relationship described with an equation where i equals ice cubes and t equals glasses of tea:
    6·2 answers
  • Armando leaves a 20% tip on a dinner bill of 12.50. how much tip does he leave?
    11·1 answer
  • 28. A speed of a boat in still water is 11 km/hr. It can go 12 km upstream and return downstream to
    9·2 answers
  • Whats the name of angle thats less than 90 degrees
    12·2 answers
  • Convert the Cartesian equation x^2 + y^2 = 16 to a polar equation.
    12·1 answer
  • Can someone help simplify?: -8x^3y2(2x^4y^4)
    5·1 answer
  • A dripping faucet loses about 2.5×10^−4 litres of water each minute. There are approximately 3×10^5 minutes in a month.
    6·2 answers
  • What is the equation of a line that is tangent to the circle (x + 1)2 + (y −2)2 = 10 at the point (0, 4)
    15·2 answers
  • 542<br> In Science notation. 
    6·1 answer
  • R(2)=120 and r(4)=378 divide the difference in the r(x) values by the difference in the x-value
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!