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
hjlf
3 years ago
6

The difference of sample means of two populations is 108.7, and the standard deviation of the difference in sample means is 32.

Which statement is true if we are testing the null hypothesis at the 68% confidence level?
A. The difference of the two means is significant at the 68% confidence level, so the null hypothesis must be rejected.

B. The difference of the two means is significant at the 68% confidence level, so the null hypothesis must be accepted.

C. The difference of the two means is not significant at the 68% confidence level, so the null hypothesis must be rejected.

D. The difference of the two means is not significant at the 68% confidence level, so the null hypothesis must be accepted.
Mathematics
1 answer:
charle [14.2K]3 years ago
5 0

Answer: A. The difference of the two means is significant at the 68% confidence level, so the null hypothesis must be rejected.

Step-by-step explanation:

I just got it right on PLATO, so I know it’s 100% correct.

You might be interested in
32% of an amount of money is $200. What is the total amount?
Alik [6]
0.32x=200\\x=625

$625.
8 0
3 years ago
Read 2 more answers
Stan, a local delivery driver is paid $3.50 per mile driven plus a daily amount of $75. On Monday he is assigned a route that is
Maurinko [17]
3.50m+75 for the 30 miles, he is being paid 105 plus the daily amount of 75 which equals to 180$.
4 0
3 years ago
How many solutions does 9(z+8)=-9z-72 have
zloy xaker [14]

Answer:

1 solution.

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Equality Properties

Step-by-step explanation:

<u>Step 1: Define equation</u>

9(z + 8) = -9z - 72

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Distribute 9:                              9x + 72 = -9z - 72
  2. Add 9z to both sides:               18z + 72 = -72
  3. Subtract 72 on both sides:       18z = -144
  4. Divide 18 on both sides:           z = -8

Here we see that we will get only 1 solution for <em>z</em>.

4 0
3 years ago
A bicycle is made up of two basic geometric shapes. They are:
alex41 [277]
They are circle and triangle.

Best of luck in geometry
5 0
3 years ago
Read 2 more answers
Pls Help Psl help brainliest
kumpel [21]
X=31, the other post justifies, I just wanted to make it more accessible for if someone just needs the answer :)
7 0
3 years ago
Read 2 more answers
Other questions:
  • How do you solve the problem?
    10·1 answer
  • Given thta triangle JKL is congruent to PQR, what can be concluded by CPCTC
    13·1 answer
  • Which of the following number sets does 25 belong in?
    6·1 answer
  • (2x-1)(x+2y-3)=<br> Mohon dijawab
    15·2 answers
  • 19) Suzy is covering a wall with wall paper. If theshaded part of the figure below represents herwall, how much wallpaper should
    11·1 answer
  • Mark and his brother David are fighting over a toy airplane while playing their yard. Mark grabs the plane and takes off running
    9·1 answer
  • I HAVE 15 MINUTES OFFERING ALL MY POINTS<br> Find the value of x and y
    15·2 answers
  • In the sum of two numbers is 20 and their difference is 10 find the numbers​
    11·1 answer
  • What’s the total badges and buy all the Boy Scouts<br> 26<br> 25<br> 52<br> 78
    13·1 answer
  • A 2 lb bag of sunflower seeds cost $1.29. Find the unit price. If needed
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!