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hichkok12 [17]
3 years ago
11

*select all that apply

Mathematics
1 answer:
Stels [109]3 years ago
4 0
The answer to the question is the first, third and fifth
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A random sample of 100 people was taken. Eighty of the people in the sample favored Candidate A. We are interested in determinin
riadik2000 [5.3K]

Answer:

Option b - not significantly greater than 75%.

Step-by-step explanation:

A random sample of 100 people was taken i.e. n=100

Eighty of the people in the sample favored Candidate i.e. x=80

We have used single sample proportion test,

p=\frac{x}{n}

p=\frac{80}{100}

p=0.8

Now we define hypothesis,

Null hypothesis H_0 : candidate A is significantly greater than 75%.

Alternative hypothesis H_1 : candidate A is not significantly greater than 75%.

Level of significance \alpha=0.05

Applying test statistic Z -proportion,

Z=\frac{\widehat{p}-p_0}{\sqrt{\frac{p_0(1-p_0)}{n}}}

Where, \widehat{p}=80\%=0.80 and p=75%=0.75

Substitute the values,

Z=\frac{0.80-0.75}{\sqrt{\frac{0.75(1-0.75)}{100}}}

Z=\frac{0.80-0.75}{\sqrt{\frac{0.1875}{100}}}

Z=\frac{0.05}{0.0433}

Z=1.1547

The p-value is

P(Z>1.1547)=1-P(Z

P(Z>1.1547)=1-0.8789

P(Z>1.1547)=0.1241

Now, the p-value is greater than the 0.05.

So we fail to reject the null hypothesis and conclude that the A is not significantly greater than 75%.

Therefore, Option b is correct.

7 0
3 years ago
PLEASE HELP AS FAST AS POSSIBLE
EleoNora [17]

Answer:

51

Step-by-step explanation:

The order goes as follows:

Lower Extreme, Lower Quartile, Median, Higher Quartile, Higher Extreme

The Higher Extreme is the highest quantity.

I am joyous to assist you anytime.

5 0
3 years ago
Please Help I am kinda confused I will give Brainliest.
Illusion [34]

Answer:

C

Step-by-step explanation:

its c

4 0
2 years ago
Read 2 more answers
What is the area of a triangle whose base is 10 centimeters and whose height is 20 centimeters?
musickatia [10]

Area of a triangle = 1/2 base * height

A = 1/2 (10)* 20

A= 5*20

A = 100 cm^2

Choice C

4 0
2 years ago
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(((Helppppppp Meeeeeee plzzzz))
erastova [34]
Here for you. 
Happy new year.

5 0
3 years ago
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