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
damaskus [11]
3 years ago
15

Which of the following is NOT a requirement of testing a claim about two population means when 1 and 2 are unknown and not assum

ed to be​ equal? Choose the correct answer below. A. The two samples are dependent. B. Both samples are simple random samples. C. Either the two sample sizes are large ​(30 and ​30) or both samples come from populations having normal​ distributions, or both of these conditions are satisfied. D. The two samples are independent.
Mathematics
1 answer:
andrey2020 [161]3 years ago
7 0

Answer:

The correct answer is D because they are unknown

Step-by-step explanation:

You might be interested in
Right answer gets brainlist
vampirchik [111]

Answer:

1012.65

Step-by-step explanation:

6.28 (7.5) ×14 + 6.28(56.25)

659.4 + 353.25

1012.65

4 0
3 years ago
Piper can run 3 laps in 8 minutes. Walker can run 10 laps in 25 minutes. Sophie can run 1 lap in 3 minutes. Who is the slowest r
Elanso [62]

Answer:

Sophie

Step-by-step explanation:

For each runner, divide their time running by the laps they ran.

Piper: 8÷3≈2.7

Walker: 25÷10=2.5

Sophie: 3÷1=3

Sophie takes the longest time to run one lap, she is the slowest.

8 0
3 years ago
Read 2 more answers
Pls help in a rushhh will give points
Juliette [100K]

Answer:

The answer is 120

Step-by-step explanation:

A triangle has 180 degrees in it total.

So all you have to do is 180 - 35 -25, and get your answer.

6 0
3 years ago
There are 7 ushers and 11 technicians helping at the Harper Middle School fall play.
bearhunter [10]

Answer:

<h3>The ratio of technicians to all helpers  is 11 : 7, or \frac{11}{7} or 11 to 7.</h3>

Step-by-step explanation:

  • Given that there are 7 ushers and 11 technicians helping at the Harper Middle School fall play.
  • Let x be the number of ushers ( or helpers ).
  • Therefore x=7 helpers.
  • Let y be the number of technicians.
  • Therefore y=11 technicians.
<h3>To find the ratio of technicians to all helpers :</h3>

That is to find the ratio of y to x.

We can write the ratio of technicians to all ushers(helpers) as y : x

Which implies that 11 : 7,  (since y=11 and x=7)

Or \frac{11}{7} or 11 to 7

<h3>The ratio of technicians to all helpers  is 11 : 7, or \frac{11}{7} or 11 to 7</h3>
4 0
3 years ago
A used bookstore sells hardback books and paperback books.A hardback book costs $11, including tax.A paperback book costs $5, in
Ket [755]

Answer:

D.5

Step-by-step explanation:

You can write the following equations from the information given:

y=x+3 (1)

11x+5y=47 (2)

x is the number of hardback books

y is the number of paperback books

You can replace (1) in (2):

11x+5(x+3)=47

11x+5x+15=47

16x=47-15

16x=32

x=32/16

x=2

Then, you can replace the value of x in (1) to find the value of y:

y=2+3

y=5

According to this, the answer is that Jamal bought 5 paperback books.

6 0
3 years ago
Other questions:
  • Can u explain when answering thanks !
    10·1 answer
  • 140 is 70% of what number
    7·1 answer
  • What is the final amount if 457 is decreased by 1% followed by a further 3% decrease? Give your answer rounded to 2 DP.
    9·1 answer
  • At a café you can get a pre-made boxed lunch with a sandwich, fruit, and drink for only $3. • The sandwiches are made with eithe
    9·1 answer
  • (6v2 + v – 3) 4 - 5v + 7
    7·1 answer
  • Show that (×)× = ×(×) if and only if the vectors and are collinear.
    15·1 answer
  • What is the partial fraction decomposition in terms of x?​
    15·1 answer
  • Find the balance in the account after the given period. $3500 deposit 6.75% compounded monthly, after 6 months
    8·1 answer
  • What is the area of the triangle Please answer quick
    14·1 answer
  • 1. Complete the following table for the proportional relationship:
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!