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Vesnalui [34]
3 years ago
12

The data given to the right includes data from 30 ​candies, and 5 of them are red. The company that makes the candy claims that

32​% of its candies are red. Use the sample data to construct a 90​% confidence interval estimate of the percentage of red candies. What do you conclude about the claim of 32​%? Construct a 90% confidence interval estimate of the population percentage of candles that are red. _%
Mathematics
1 answer:
lina2011 [118]3 years ago
4 0
100% expansión explanation
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The mayor of a town has proposed a plan for the annexation of an adjoining community. A political study took a sample of 1600 vo
Arturiano [62]

Answer:

Test statistic = -2.44

There is enough evidence to support the strategist's claim.

Step-by-step explanation:

H0 : p = 0.41

H1 : p < 0.41

pˆ = 0.38

Test statistic :

z=pˆ−p/√p(1−p)/n

Z = (0.38 - 0.41) / √(0.41(1 - 0.41) / 1600

Z = - 0.03 / √0.0001511875

Z = - 0.03 / 0.0122958

Z = - 2.4399

Test statistic = -2.44

The Pvalue :

P(Z < -2.44) = 0.0073436

α - level = 0.02

If Pvalue < α ; Reject H0

0.0073436 < 0.02 ; We reject H0

Since Pvalue < α ; Hence, There is enough evidence to support the strategist's claim.

8 0
2 years ago
Describe a triangle for which the centroid, circumcenter, incenter, and orthocenter are the same point. What features of this tr
hjlf

Answer:

An equilateral triangle

Step-by-step explanation:

Because an equilateral has a feature that all sides have the same length and all angles are of the same, it does not matter from which side and peak the centroid, circumcenter, incenter and orthocenter is created, they would always end up at the same point.

3 0
3 years ago
Read 2 more answers
The difference of 22 and a number is -8<br><br> A.14<br> B.30<br> C.-30<br> D.-14
DIA [1.3K]

Answer:

B. 30

Step-by-step explanation:

the equation looks like 22 - x = -8  and 22 - 30 is negative 8

3 0
3 years ago
Read 2 more answers
Jamie kicked a soccer ball that traveled along a path described by the parabola y = -x^2 +8x, where y equals the height of the s
andrey2020 [161]
We have that
<span>y = -x</span>²<span>+8x

we know that
when the ball hint the ground is the x-intercepts of the graph
the x-intercepts is for y=0
so
0=-x</span>²+8x--------> x²-8x=0----> x*(x-8)=0

the solution is
x=0
x=8

the x intercepts are the points (0,0) and (8,0)
the distance between the x intercepts points =[8-0]-----> 8 ft

the answer is
8 ft

see the attached figure

6 0
3 years ago
Read 2 more answers
A car is travelling on an cement road with a drag factor of 1.1. The speed limit on this portion of the road is 45 mph. It was d
Nikolay [14]
<span>A) What is the minimum speed the car was traveling when it entered the skid? Round your answer to the nearest tenth. 37.4 mph


B) Did the driver exceed the speed limit when entering the skid? 
No</span>
3 0
2 years ago
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