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vladimir2022 [97]
2 years ago
11

A teacher would like to estimate the true mean amount of time her students spend completing a particular homework assignment. Th

e day the homework is due, the teacher selects a random sample of 30 of her 75 students and records the amount of time that each of them spent completing the assignment. Are the conditions for constructing a t confidence interval met?
a. No, the random condition is not met.
b. No, the 10% condition is not met.
c. No, the Normal/large sample condition is not met.
d. Yes, the conditions for inference are met.
Mathematics
1 answer:
finlep [7]2 years ago
6 0
B no the 10% condition is not met
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Answer:

No there cannot be the same number of stickers on each page.

Step-by-step explanation:

If you want to find out how many stickers need to be in every page to be even you would add all the stickers up. 6+6+9+10+11= 42. Take the 42 and divide it by 5 to see how many stickers would go in each page. This will give you 8.4. However since this number is a decimal it can't be split evenly in whole stickers for each page. Meaning that it wouldn't be possible for each page to have a evenly distributed number of stickers per each page.

5 0
3 years ago
Express x^2+4x-7 in the form (x+a)^2-b where a and b are integers
lukranit [14]

Answer:

(x + 2)^2 - 11.

Step-by-step explanation:

f(x) = x^2 + 4x - 7

Now x^2 + 4x = (x + 2)^2 - 4 so we have:

f(x) = (x + 2)^2 - 4 - 7

f(x) = (x + 2)^2 - 11.

4 0
3 years ago
A package of colored paper contains 20 pieces of yellow paper. This represents 25% of the total pieces of colored paper in the p
rewona [7]

<u />the answer may be 125 because 20 pieces of colored paper is only part and then the whole would be 125 because  divided by  is 5 so 25 times 5 is 125.

6 0
3 years ago
runs 5 laps in 30 minutes, denise runs 4 laps in 20 minutes, paola runs 6 laps in 40 minutes. if they run at a constant rate, wh
asambeis [7]
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3 0
3 years ago
What value can be written on the blank line to make the expressions equivalent
Gala2k [10]
<span>The expression is missing from the question, but here is the given expression which I got from a similar question.

48 + 54 = ___ ´ (8 + 9)

Theleft-hand side of the equation is:
                                                             48 + 54 = 102
Now the right-hand side of the equation:
                                                                    A </span>× (8+9) = Right-hand side
                                                                    A × (8+9) = 102
Solving for the unknown variable A,
                                                                    A × 17 = 102
Dividing by 17 on both sides,
                                                A × 17 ÷ 17 = 102 ÷ 17
                                                         A × 1 = 6
                                                              A = 6

Hence,
           48 + 54 = 6 x (8 + 9)

8 0
3 years ago
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