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
lara [203]
3 years ago
14

PLSSSS HELPP, Sharon has collected donations of $4.40, $3.12, $8.00, and $6.22 to help buy books for the new library. What is th

e mean (average) amount of donations she has collected?
Mathematics
1 answer:
hoa [83]3 years ago
6 0

Answer:

5.43500

Step-by-step explanation:

You might be interested in
An antique collector wants to know the age of a particular chair in a shop
Nataly_w [17]
Well you gotta ask the chair politely, "how old are you chair?" 
4 0
4 years ago
Read 2 more answers
he mean age of bus drivers in Chicago is greater than 54.4 years. If a hypothesis test is performed, how should you interpret a
Natalka [10]

Answer:

There is not sufficient evidence to support the claim μ > 54.4.

Step-by-step explanation:

1) Previous concepts

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".  

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".

2) Solution to the problem

On this case we want to test is \mu>54.4 and the system of hypothesi on this case are:

Null Hypothesis: \mu \leq 54.4

Alternative hypothesis:\mu >54.4

On this case is our decision is FAILS to reject the null hypothesis then we can conclude that we don't have enough evidence to support the claim at the significance level provided.  So the correct conclusion would be:

There is not sufficient evidence to support the claim μ > 54.4.

8 0
3 years ago
What is the difference? −15 − (−3)
klasskru [66]
The answer is -12 bc you take away the 3
3 0
1 year ago
Read 2 more answers
Please help will mark brainly
Slav-nsk [51]

the answer is B because

2 2/3 = 8/3

8/3 x 3 = 24/3

24/3 = 8

I hope this helps

4 0
3 years ago
Read 2 more answers
A rectangular picture has a width of 2/3 foot and a length of 3/4 foot. What is the area of the picture?
Ganezh [65]

Answer:

Area of rectangles: l*b [LENGHT×BREADTH]

Therefore,

3/4 ×  2/3 = Area

We do it as, 3*2/4*3

⇒ 6/12 = area

After simplification, we will get

1/2 = area of rectangular picture

4 0
3 years ago
Other questions:
  • Evaluate 6 P 3. its an AQR course
    5·1 answer
  • 4x + 5 = 6x - 11<br> 1.6<br> 0-8<br> 0.6<br> 8
    7·2 answers
  • Reduce the ratio 14:63
    8·2 answers
  • what are two decimals with thousandths that would give 0.2 when rounded to the nearest tenth and 0.20 when rounded to the neares
    14·1 answer
  • A(0,6) and B(10,0) are two point and O is the origin. find the equation of the median OM and altitude OD of triangle AOB​
    10·1 answer
  • If A is to the right of B on a number line, which of the following must be true?
    8·1 answer
  • 4. Solve the inequality. 9+8 l 4a - 5 l &gt;113​
    8·1 answer
  • Please help i just wanna see if it is D as the answer
    5·1 answer
  • Pls somone answer I need the answer
    15·1 answer
  • What is the base (in inches) of a triangle with an area of 161 square inches and a height of 14 inches?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!