According to the 2018 general social survey (gss), 60% of all u. s. households have at least one pet. a veterinarian in ann arbor decided to conduct a survey to assess if over 60% of all ann arbor households have at least one pet. a 10% significance level was selected to be used. the random sample of 280 ann arbor households, resulted in 182 stating they currently have at least one pet. these results are turned over to you to perform the appropriate test. 1) state the appropriate hypotheses to be tested with a complete definition of the parameter of interest. (the significance level has been selected to be 10%). 2) check the necessary assumption(s) (you may assume that the selected sample is a random sample). 3) perform the appropriate test (include all supporting computations for the test statistic and p-value) 4) give your decision and provide a conclusion in context. your answer needs to be organized well and use labels for your steps 1, 2, 3, and 4. question 8 answer no answer entered.
Step-by-step explanation:
1. the claim here is that over 60 percents of the households living in ann harbor have pets.
null hypothesis;
h0: p≤0.60
alternative:
h1: p>0.60
2.
n is the size of the sample = 280
n(p) = 280 x 0.60 = 168 greater than 10
n(1-p) = 280(1-0.6) = 280 x 0.4 = 112 greater than 10
we use the normal dist since each of the above are greater than 10
3. n = 280
x = 182
x/n = 182/280
= 0.65
we get the test statistic z
z = [tex]\frac{0.65-0.6}{\sqrt{0.6*(1-0.6)/280} }[/tex]
= [tex]\frac{0.05}{\sqrt{0.000857} }[/tex]
=[tex]\frac{0.05}{0.02927}[/tex]
≈ [tex]1.71[/tex]
we get the p value = 1-p(z<1.71)
= 1-.9562
this gives 0.0438
4. we can see that 0.0438 < 0.10
so we conclude that over 60% of these households have at least one pet since we rejected h0.
how many bases does a trapezoid have
Answer:
Image result for how many bases does a trapezoid have
two bases
A trapezoid has two bases, each of which is one of the parallel sides. The other two sides that aren't parallel to each other are called the trapezoid's legs. Since only the bases are parallel and the legs are not, we can think of this scenario as two nonparallel transversals cutting across a pair of parallel lines.
Step-by-step explanation:
The coordinates of △ABC are as follows: A(0,0); B(0,8); C(6,7). Find the coordinates of the centroid
Answer:
centroid is (2,5)
Step-by-step explanation:
A 2-gallon bottle of bleach costs $14.24. What is the price per pint?
Answer:
16 divided by 14.24 = 1.12359550562
If you round it would be: $1.12
Answer:
$1.12
Step-by-step explanation:
there are eight pints in a gallon, and since theres two gallons, that mean theres 16 pints. 16 divided by 14.24 is 1.12
00:00 What is the y-intercept of this graph? А.О B 2 C. 4 O D. 8
Answer:
cccccccif Rong d
mmmmmmmmmm
The slope of a vertical line is _____
the slope of a horizontal line is ______
Answer:
The slope of a vertical line is undefined
The slope of a horizontal line is zero
HELLPPPP PLEASE
I WILLL MARK YOU BRILL
Answer:
13
Step-by-step explanation:
71-6=65
65/5=13
therefore the answer is 13
5d + 6 = 71
5d = 71 - 6
5d = 65
d = 65/5
d = 13
Use the quadratic formula to solve for x. 5x² + 4x=4 Round your answer to the nearest hundredth. If there is more than one solution, separate them with commas.
Which mixed number is equivalent to 21/13(−10/9+4)?
Answer:
4 and 6 over 10
Step-by-step explanation:
If u do the math u will get dis answer
Jose deposits S300 into an account that pays simple interest at a rate of 6% per year. How much interest will he be paid in the first 3 years?
Answer:
$54
Step-by-step explanation:
300 times 0.06 times 3
0.06 times 3 = 0.18
300 times 0.18 = 54
The simple interest is $54
Answer:
$54
Step-by-step explanation:
A = P(1 + rt)
300(1 + (0.06 × 3)) = 354
whoever gets this correct first gets brainlest !!
Answer:
41.8
Step-by-step explanation:
The rectangles are similar by a factor of 10, so simply divide the measure by 10 to get the length of the smaller one.
GUYS HELP HURRY PLZ PLZ PLZ PLZ PLZ IV SEARCHED PERSON TO ANSWER CORRECTLY GETS BRAINLEST!
Answer:
Its the first one J(-1,-4)
Step-by-step explanation:
YW
Answer/Step-by-step explanation:
The question is asking you that after the transformation what is J prime not the regular J. Please show the whole question if possible so I may help.
The answer would be (1,4) which is also know as C. Sorry, did not see the rotation before.
Cheers :)
A ladder leans against a wall 6 ft above the ground. The base of the ladder is 3 ft from the wall. How long is the ladder?
Answer:
6.71
Step-by-step explanation:
Hopefully this helps! :)
A tile measures 10cm by 10cm. How many such tiles are required to cover a wall of size 4m and 2.5m?
Pls do NOT spam
Answer:
Step-by-step explanation:
[4m(2.5m)(100^2cm^2/m^2)]/10^2cm^2=1000 tiles
Answer: 1000
Step-by-step explanation:
10xm×10cm=100cm
400cm×250cm=100000cm
100000cm²÷100cm²=1000
200 divided by 4 equals
the answer for 200 divided by 4 is 50
Answer:
50
Step-by-step explanation:
50×2=100
5×2=100
100+100=200
This is the simplest way I can break it down.
I hope this helps you in any way :)
i will mark you brainliest once you get the answer correct first!!
Given:
A composed figure of a rectangle, semicircle and another semicircle removed.
To find:
The area of the given figure.
Solution:
From the given figure it is clear that the diameter of semicircle and removed semicircle are same, i.e. 8 cm.
Since the diameter of semicircle are equal, therefore their area is also equal.
The area of the given figure is:
A = Area of the rectangle - Area of removed semi circle + Area of semicircle
A = Area of the rectangle - Area of semicircle + Area of semicircle
A = Area of the rectangle
We know that, the area of a rectangle is
[tex]A=length\times width[/tex]
The length of the rectangle is 14 units and width is 8 units. So, the area of composed figure is
[tex]A=14\times 8[/tex]
[tex]A=112[/tex]
Therefore, the area of the combined figure is 112 sq. units.
1.
Krishna dai bought 40 bulbs for Rs. 800. 10 of them were broken.
He sold all remaining bulbs at Rs. 30 each. Find his profit or loss
percent
Answer:
He loses 100 Rs. during the process of buying and selling.
Step-by-step explanation:
1. When he bought 40 bulbs for 800 it meant that every bulb is 20 Rs. worth.
2. 10 of them were broken which means its -200 Rs. from the 800 he spent which leads to him losing 200 Rs.
3. He sold the remaining for 30 Rs. each and he had 30, which means 30 x 30 = 900 Rs.
4. We see that he got 100 more Rs. from the original price he bought the 40 bulbs for but 10 bulbs were lost throughout the way.
( Now there are 2 scenarios in this case )
1. The 10 remaining bulbs were to be lost as in the part of the profit he gained from selling the light bulbs for 30 Rs. which would lead to him losing 200 Rs. because he couldve sold the 10 if they werent broken.
2. The 10 remaining bulbs were to be lost as in part of the original price he bought them for which was 20 Rs. per light bulb which means that if they werent broken he couldve sold them for 100 Rs. .
( Now you may ask me why isnt it 300 Rs. in the first scenario and 200 Rs. in the second its because he gained 100 Rs. in the process of selling the light bulbs that werent broken. So we add 100 Rs. in both scenarios/cases )
I chose the second scenario because it seemed very reasonable to me, but you do as you see preferable.
I hope this helped have a good day!
Answer:
Profit %= 50%
Step-by-step explanation:
Price for 40 bulbs: Rs.800
Price for 1 bulb each: 800/40= Rs 20
Price for 10 bulbs= 10*20=Rs. 200
This means that Rs. 200 were wasted due to 10 bulbs being broken.
The remaining bulbs; 30 are sold at a price of Rs 30 each.....
In reality, the price of the remaining 30 bulbs: 30*20=600
Since the 30 bulbs are sold at the price of 30, they altogether cost 30*30=900
Profit= SP-CP; Profit= 900- 600= Rs 300
Profit%= 300*100/600= 50%
Find m
A. 110°
B. 70°
C. 250°
D. 55°
Answer:
A:100°
Step-by-step explanation:
BECAUSE IS THE SAME
I need help with this I’ll give 20 extra points if answers correctly
Answer:
I think its C ( the 3rd one because thats what photo math said
Step-by-step explanation:
Brainliest plus those 20 points you said you would give?
I WILL GIVE YOU BRAINERLEST AND A HEART AND MORE IF U ANSWER THIS PLSS
Carli records the number of articles she writes
each month for a year. What percent of the
months does she write more than 3 articles?
Solve the simultaneous equations
8x – 3y = 30
3x + y = 7
Which Decimal is equivalent to 47/250
Answer:
0.188?
Step-by-step explanation:
What year is 7 years after 2003
Answer: 2010
Step-by-step explanation:
2003+7=2010
1/2(x+2)+7=3x+(-32)
explained pls
Answer:
x is equal to 16
Step-by-step explanation:
Combine multiplied terms into a single fraction
Multiply by 1
Subtract 7 from both sides of the equation
Simplify it
Subtract 3 from both sides of the equation
Simplify
Multiply all terms by the same value to eliminate fraction denominators
Simplify
Subtract 2 from both sides of the equation
Simplify
Divide both sides of the equation by the same term
Simplify!
That's it!
Find the area of the following rectangle.
length = 12 ft.
width = 8 ft.
Answer:
96 ft
Step-by-step explanation:
A= bh
A = 12 x 8
A = 96
Answer:
96 ft^2
Step-by-step explanation:
12*8
3. Classify the number: -4
Answer:
Aight.
Rational, Real, Integer, Negative
Answer:
It is a rational, real, negative number, and an integer.
Hope that helps!
Step-by-step explanation:
How did you get your answer, please show me your work
Helpppppp meeeeee please
Answer:
D
Step-by-step explanation:
friend I am not sure but ..u can take a chance fir D or wait for others
How bad is the heavy traffic? You can walk 14
miles in the same time that it takes to travel
35 miles by car. If the car's rate is 6 miles per
hour laster than your walking rate find the
average rate of each.
Answer:
I walk at a rate of 4 miles per hour, while the car travels at 10 miles per hour.
Step-by-step explanation:
Since I can walk 14 miles in the same time that it takes to travel 35 miles by car, if the car's rate is 6 miles per hour faster than my walking rate, to find the average rate of each the following calculation must be performed:
35 - 14 = 21
21/6 = 3.5
35 / 3.5 = 10
14 / 3.5 = 4
So, I walk at a rate of 4 miles per hour, while the car travels at 10 miles per hour.
Help! This is due today!
Answer:
27π
Step-by-step explanation:
area of circle = πr^2
= π × 6^2
= 36π
36/4
= 9
36 - 9
= 27π units squared