The charitable foundation for a large metropolitan hospital is conducting a study to characterize its donor base. In the past, most donations have come from relatively wealthy individuals; the average annual donor income in the most recent survey was right at $100,000. The foundation believes the average has now increased. A random sample of 200 current donors showed a mean annual income of $103,157 and a standard deviation of $27,498. To perform this study, we should form a null hypothesis stating that the average is
Answer:
The null hypothesis will be that the average annual donor income is less or equal to $ 100,000
Step-by-step explanation:
The claim is mostly treated as alternate hypothesis .
In this question the claim is given as the average annual donor income has increased therefore it is written as
Ha: u > 100,000
The null hypothesis is reverse of the alternate hypothesis
H0: u ≤ 100,000
The null hypothesis will be that the average annual donor income is less or equal to $ 100,000
Dolly's best ski time is 76 seconds this time is 1 1/3 times the best time score by Andrew what is Andrews best
Answer:
answer is here
Step-by-step explanation:
https://www.mathpapa.com/algebra-calculator.html
(08.01)Two lines, A and B, are represented by the following equations:
Line A: 2x + 2y = 8
Line B: x + y = 3
Which statement is true about the solution to the set of equations?
It is (1, 2).
There are infinitely many solutions.
O It is (2, 2).
There is no solution.
Answer:
there is no solution
Step-by-step explanation:
both of the lines have the same slope making them parallel so there is no solution
Please help please help please help
If y’all could help on this one that would be great, no rush I have a week to turn in just make sure it’s correct and explains it I will give 50 points, thank you :)
ANSWER
-1,-1 is P
-4, -3 is R
-2, -3 is Q
I think this is the answer hope it helps :)
A 30%tip on a $50 haircut.
Answer:
$15
Step-by-step explanation:
An item that originally costs $320 is on sale for 22% off. What is the sale price? Show your work. PLZ SHOW UR WORK!
Answer:
The answer is $249.60
Step-by-step explanation:
This is a simple question. Firstly you will take the total cost and multiply it by 0.22. The answer to this is 70.4. Take that and subtract it from the total cost because 70 is the discount price. Once subtracted you will get 249.6. In conclusion, the sale price of the item is $249.60.
P.S. I hope this answer helped you in some way or another. If you have any questions you can ask them to me and I will be happy to help you out. I also wanted to add that I have a channel called The Game Rater or soon to be Nitro Studios (based on when you see this). I would really appreciate it if you could check out my channel. If not, I hope this answer helped you and I still appreciate you reading this side note. Thank you.
-Nitroid444I will give BRAINLIST Solve the quadratic function by factoring.
2x^2+7x-4=0
Someone please help I will give BRAINLIST please show work I need this for my test
Jimmy has 317 of feet of chord for his science experiment. James has 3/5
feet of chord for his science experiment as well. (a) How many feet of
chord do they have altogether? (b) Who has more chord, Jimmy or
James? Help please
Answer:
(a)317 and 3/5 (b) jimmy
Step-by-step explanation:
(a) 317 and 3/5 because i plus there chord both (b) no explanation cause jimmy has mire chord than james
Answer:
A.317 3/5
B.jimmy
Step-by-step explanation:
sana Po makatulong
Please help, will give brainliest.
Answer:
There is nothing.
Step-by-step explanation:
Answer:
A line that starts at with a constant positive slope
Step-by-step explanation:
Hope it makes sense!!
PLEASE HELP !!!! ILL GIVE BRAINLIEST !!!
Answer:Congurant
Step-by-step explanation:
Answer:
Both
Step-by-step explanation:
The angles will add up to 180*, but they also measure the same.
A circle's radius is 14 centimeters.
What is the circle's circumference (use 3.14 for pi and round to
nearest tenth)?
Answer:
seeee this is y i hate math too many numbers XD
PLZ HELP!!!!! Find the slope of each line that passes through the given points. (−2, 1) and (6, −5)
Answer:
m = -3/4
Step-by-step explanation:
-5 - 1 / 6 - -2 = -6/8 = -3/4
Answer:
Step-by-step explanation:
(-5 - 1)/(6 + 2)= -6/8 = -3/4
BRAINLIEST FOR CORRECT ANSWER, IM FAILING SCHOOL AND NEED HELP ASAP. EVEN OFFICIAL HELP COUNTS
Please help meeeeeeeeeee
I hope this helped
Step-by-step explanation:
Ok
First : Find the area by using length x width x height
Second: 18in (long/length) x 12in (wide/width) 10in (high/height)
last : 18 x 12 x 10
=2,160 in/ C
What is the answer to this problem?
Answer:32?
Step-by-step explanation:
Find the measure of <4.
{
44
158°
{
44 = [?]
Answer:
<4 = 22
Step-by-step explanation:
<4 = x
x + 158 = 180
x = 22
Same side interior angles are supplementary
<4+158=180<4=180-158<4=22°Which describes the correlation shown in the scatterplot?
Answer:2,4
Step-by-step explanation:
A cylinder has a height of 10 centimeters. It's volume is 5306.6 cubic centimeters. What is the radius of the cylinder
Answer: 13
Step-by-step explanation: r=V
πh=5306.6
π·10≈12.9967
The side adjacent to ∠W is …
Question 1 options:
side 34
side WU
side 90
side VW
The side adjacent to ∠W is side WU.
9514 1404 393
Answer:
(b) side WU
Step-by-step explanation:
With respect to any given acute angle in a right triangle, the sides of the triangle are called "adjacent", "opposite", or "hypotenuse".
The two sides that form angle W are WU and WV. Side WV is the longest, opposite the right angle, so it is the hypotenuse. Side WU is "adjacent" to angle W, and side UV is "opposite" angle W.
(It can help to note that the name of the opposite side UV does not contain the letter of the angle W. The name of the adjacent side WU does contain the letter of the angle.)
Harmony thinks 448 is the solution to the equation 8b=56. is harmony correct? explain why or why not.
pls answer quickly my assignment is due tonight
The solution of the equation 8b = 56 is 7. And the solution of Harmony is 448. So, Harmony is incorrect.
What is the solution to the equation?The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.
The equation is given below.
8b = 56
Simplify the equation, then we have
8b = 56
b = 56 / 8
b = 7
The solution of the equation 8b = 56 is 7. And the solution of Harmony is 448. So, Harmony is incorrect.
More about the solution of the equation link is given below.
https://brainly.com/question/545403
#SPJ2
Della needs fabric that is 12.4 yards long. If the store sells fabric in meters, how much fabric will she need?
Which pair(s) of numbers has (have) a greatest common factor of 9?
Select ALL that apply.
89 and 18
49 and 27
45 and 63
36 and 54
18 and 63
Answer:
45 and 63
36 and 54
18 and 63
Step-by-step explanation:
how does the stimulus check impact society please help me please i really need help please
People started getting stimulus checks during the time when c0vid-19 was a major issue because most places where people would work were closed, so people were getting money through stimulus checks because they were basically unemployed. This money went back into the economy to buy mostly essentials and health products, so therefore it helped businesses that sold these kinds of things.
The circumference of a circle is like the ________ of a figure.
A. shape
B. perimeter
C. area
Answer:
The answer would be 'B. perimeter'.
What is the mode of the set of data points given below? 1 15 12 6 12 9 12 3 6 12 15 9 15 12 15
Answer:
the mode is 12
Step-by-step explanation:
Arrange the numbers in order : 1 , 3, 6, 6, 9, 9, 12, 12, 12, 12, 12, 15, 15, 15, 15
Then count how many numbers that appears the most, so the number that appears the most is 12, therefore, the mode in the data set is 12 .
WILL GIVE BRAINLIEST TO BEST EXPLAINOR
how do you find and (draw) graph slope.
Answer:
y=-x+4
The equation is in the form y=mx+c, where m is the slope and c is the y-intercept, so we know that the slope (m) is -1, and the y-intercept (c) is 4.
The y-intercept is the value of y when x=0. So you can mark (0,4) as a point on the line.
The next thing I would do is take any value for x and find another point on the line. Let's let x=2:
y=-2+4
y=2
So now we know another point on the line (2,2). Mark this on the graph too.
Then connect these two points and extend to the line to finish off your graph, and you're done!
(PS: if the whole 'y-intercept' thing gives you a headache, you can just pick any two values for x, sub them in to find the points, mark those points and connect. There's also a method for graphing using just the slope and y-intercept, but the method above is usually what people prefer to do)
I've attached a sketch that corresponds to my answer to give you an idea:
Help I really need this answer 5,000 mL =
Answer:
5L
Step-by-step explanation:
[tex]\frac{5000mL}{1}*\frac{1L}{1000mL} = 5L[/tex]
Answer:
5L
Step-by-step explanation:
If you are trying to find out how many liters there are in 5000 milliliters then it is 5
I’m unsure how to do this statistics problem I believe it has to do with the bell curve
A 2018 poll of 3603 randomly selected users of a social media site found that 1697 get most of their news about world events on the site. Research done in 2013 found that only 45% of all the site users reported getting their news about world events on this site. a. Does this sample give evidence that the proportion of site users who get their world news on this site has changed since 2013
Answer:
Reject H0; there is significant evidence that the proportion of site users who get their world news on this site has changed since 2013 and is significantly different from 45%
Step-by-step explanation:
Sample size, n = 3603
x = 1697
Phat = x/n = 1697/3603 = 0.4709 =47.09%
H0 : p = 0.45
H1 : p > 0.45
The test statistic :
(phat - p) / sqrt[(p(1 - p)) /n]
(0.4709 - 0.45) / sqrt[(0.45(0.55))/3603]
0.0209 / 0.00828810932
Test statistic = 2.5217
The Pvalue :
Using the Pvalue from Test statistic calculator ; α = 0.05 ;
Pvalue at 95% confidence = 0.005839
Pvalue < α ;
Hence, we reject the Null
Therefore, we conclude that the sample gives evidence that the proportion of site users who get their world news on this site has changed since 2013.