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Sedaia [141]
3 years ago
14

A study is done by a community group in two neighboring colleges to determine which one graduate's students with more math class

es. College A samples 11 graduates. Their average is four math classes with a standard deviation of 1.5 math classes. College B samples 9 graduates. Their average is 3.5 math classes with a standard deviation of one math class. The community group believes that a student who graduates from college A has taken more math classes, on the average. Both populations have a normal distribution. Test at a 1 % significance level. Answer the following questions (15) a. Is this a test of two means or two proportions? Are the populations dependent or independent? b. Are the populations' standard deviations known or not? c. Which distribution is to be used? d. What is random variable? e. Hypothesis? f. Test is two tailed or one tail? g. Test value h. Use P-value method) to reach to the conclusion?
Mathematics
1 answer:
ozzi3 years ago
7 0

Answer:

thats a long question my friend

Step-by-step explanation:

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What percentage of tickets sold were to seniors?
Kay [80]

<u>Given</u>:

The number of tickets sold to children =35+87+62=184.

The number of tickets sold to adults =56+177+205=438.

The number of tickets sold to seniors =32+14+54=100.

To determine the percentage of tickets sold to seniors we need to determine the total number of tickets sold to each category.

<u>To determine the percentage of tickets sold to seniors:</u>

In order to determine the percentage of tickets sold to the seniors, we divide the tickets sold to seniors by the total number of tickets sold to children, adults, and seniors.

This value is multiplied with 100 to convert it into a percentage.

The number of tickets sold to seniors =100.

The total number of tickets sold to children, adults, and seniors = 184+438+100=722.

The percentage of tickets sold to seniors = \frac{100}{722} (100) = 0.1385(100)=13.85\%.

Rounding this off, we get the value as 13.9%

Hence, option 1 is the correct answer.

8 0
3 years ago
8n-13=13-8n can someone answer with steps, please?
NARA [144]

Answer:

1.625

Step-by-step explanation:

Add 13 to both sides

8n = 26 - 8n

Add 8n to both sides

16n = 26

Divide both sides by 16

Your answer is 1.625

Hope I helped :)

Please consider Brainliest for me :)

(unless the other person does a better job)

(Which they probably will) :)

4 0
2 years ago
Division of whole numbers 3075 divided by 3
butalik [34]

Answer:

1025

Step-by-step explanation:

3075/3=1025

4 0
2 years ago
Plz help I will give you BRAINLIESt 5stars
Svetradugi [14.3K]

Answer:

I will just give you the way of solving it

Step-by-step explanation:

First you have to change the sgape of the equation and it will become like this :

-6y=-2x+12

And then:

Y=0.33x+2

And then you have to give values to x and find y

For example i will make x zero (0)

It will become

Y=0.33(0)+12

=+12

And the points are (0,+12)

Go on like this and draw the line

Good luck

Sorry for bad english

4 0
3 years ago
Experts/ace/geniuses helpp
Alex Ar [27]
Square root 144 =  12 so this is the rational number
8 0
3 years ago
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