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jolli1 [7]
4 years ago
10

Just need help with questions 11 and 12 need help fast

Mathematics
1 answer:
bulgar [2K]4 years ago
5 0
You can see if their angles are equal to each other
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Determine whether the following statement regarding the hypothesistest for two population proportions is true or false.
murzikaleks [220]

Answer:

False

Step-by-step explanation:

Let p1 be the population proportion for the first population

and p2 be the population proportion for the second population

Then

H_{0} p1  = p2

H_{a} p1 ≠ p2

Test statistic can be found usin the equation:

z=\frac{p1-p2}{\sqrt{{p*(1-p)*(\frac{1}{n1} +\frac{1}{n2}) }}} where

  • p1 is the sample population proportion for the first population
  • p2 is the sample population proportion for the second population
  • p is the pool proportion of p1 and p2
  • n1 is the sample size of the first population
  • n2 is the sample size of the second population.

As |p1-p2| gets smaller, the value of the <em>test statistic</em> gets smaller. Thus the probability of its being extreme gets smaller. This means its p-value gets higher.

As the<em> p-value</em> gets higher, the null hypothesis is less likely be rejected.

7 0
4 years ago
A costume designer needs to make 12 costumes for the school play. Each costume requires 2 2/3 yards of fabric. How many yards of
Alexus [3.1K]

Answer:

Length of fabric the designer needs to make 12 costumes = 32 yards

Step-by-step explanation:

Length of fabric required for each costume = 2\frac{2}{3}\ yards

Total number of costumes to be made =12

Total length of fabric required for all the costumes = 12\times 2\frac{2}{3}

We can multiply mixed numbers by converting it to fractions.

12\times 2\frac{2}{3}

⇒12\times \frac{8}{3}

⇒32 yards

Length of fabric the designer needs to make 12 costumes = 32 yards

3 0
4 years ago
A science test, which is worth 100 points, consists of 24 questions. Each question is worth either 3 points or 5 points. If x is
melamori03 [73]

Answer: B. The test contains 10 three-point questions and 14 five-point questions

Step-by-step explanation:

14 * 5 = 70

10 * 3 = 30

70 + 30 = 100

14 + 10 = 24

7 0
3 years ago
Read 2 more answers
A singing contest eliminates contestants after each round. The number of contestants that go into round n is equal to the number
dlinn [17]
153 don’t take my word for just but I hope this is a little helpful
6 0
3 years ago
Set 4x equal to x+30 and solve.
prisoha [69]

Answer:

x = 10

Step-by-step explanation:

1) Subtract x from both sides.

4x − x = 30

2) Simplify 4−x to 3x

3x = 30

3) Divide both sides by 3

x = \frac{30}{3}

4) Simplify \frac{30}{3} to 10

x = 10

7 0
3 years ago
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