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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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A biker travels at a rate of 20 miles per hour. Calculate
kow [346]

Answer:

60 miles

Step-by-step explanation:

20 miles times 3

3 0
3 years ago
Read 2 more answers
Springfield nuclear energy inc bonds are currently trading at 283.30. The bonds have a face value of $1,000, a coupon rate of 2%
vampirchik [111]

<u>Answer:</u>

The yield to maturity of the bonds is 11%

<u>Explanation:</u>

Price at which the bonds is currently trading = 283.30$

Face Value = $1000

Coupon rate = 2%

Hence the coupon bond rate = $1000 ×2%

= 1000\times \frac{2}{100}

=$20

Years to maturity: 20 years

Formula used:  

=\frac{(C+ (\frac{(F-P)}{n}))}{(\frac{(F+P)}{2})}

Where C is the bond coupon rate

F is the face value

P is the price

N is the number of years

=\frac{(20 +(\frac{(1000-283.30)}{20})}{(\frac{(1000+283.30)}{2})}

=11%

The yield to maturity of the bonds is 11%

3 0
3 years ago
Please help me and type out the answer
Orlov [11]

Answer:

The owner makes $2 in sales per customer

Note: The "Amount of sales" label of the question is phrased poorly. s could be better labeled "profit from sales" or at least "Amount made from sales", etc.

Step-by-step explanation:

If you logically think about how the answer (now that you know it) relates to the question, it should make simple sense.

i.e. if you consider the first column where $24 is made from 12 customers, and divide the $24 made by the 12 customers, you'll see that each customer spends $2.

3 0
2 years ago
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Point P partitions the directed line segment from A to B into the ratio 3:4. Will P be closer to A or B? Why
Pani-rosa [81]
B because the distance between p to b is 1/4 of the line and the distance between p to a is 3/4 of the line
6 0
3 years ago
Sarah received $55 for her birthday. She used some of that money to buy 3 shirts priced at m dollars each.
jolli1 [7]

Answer:

55 - 3m

Step-by-step explanation:

Sarah has $55

Her expenses are 3 shirts priced at $m each.

Total cost of 3 shirts at $m each would be the multiplication of each:

3 * m = 3m

The amount of money Sarah has left would be the total she had MINUS what she spent on 3 shirts. That would be:

Remaining Money = 55 - 3m

5 0
3 years ago
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