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fgiga [73]
3 years ago
13

Which one answer fast !

Mathematics
2 answers:
max2010maxim [7]3 years ago
6 0

Answer:

A, 1/4

0.25 simplified is 1/4, as shown in the diagram.

Montano1993 [528]3 years ago
5 0

Answer:

A is the correct answer to your question

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The dimensions of a rectangular pool are 24ft long, 16ft wide, and 4ft deep. How much water is needed to fill the pool?
andrey2020 [161]
Since 24x16x4 it would equal 1,536 ft^3
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What is 1 + 1?<br> pls help
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A newspaper published an article about a study in which researchers subjected laboratory gloves to stress. Among 225 vinyl? glov
romanna [79]

Answer:

a)

H₀: ρ₁ ≤ ρ₂

H₁: ρ₁ > ρ₂

b)

Z= \frac{('p_{1} - 'p_{2}) - (p_{1} - p_{2})}{\sqrt{'p(1-'p)[\frac{1}{n_1} + \frac{1}{n_2} ]} } ≈ N(0;1)

c)

p-value < .00001

d)

Reject the null hypothesis.

The population proportion vinyl gloves that leak viruses is greater than the population proportion of latex gloves that leak viruses.

Step-by-step explanation:

Hello!

The objective is to test if the population proportion of vinyl gloves that leak viruses (population 1) is greater then the population proportion of latex gloves that leak viruses (population 2).

Sample 1 (Vinyl)

n₁= 225

Sample proportion 'ρ₁= 0.60

Sample 2 (Latex)

n₂= 225

Sample proportion 'ρ₂= 0.09

Pooled proportion: 'ρ= (x₁+x₂)/(n₁+n₂)= ( 'ρ₁ + 'ρ₂)/2= (0.60 + 0.09)/2= 0.345 ≅0.35

The hypothesis is:

H₀: ρ₁ ≤ ρ₂

H₁: ρ₁ > ρ₂

α: 0.05

The statistic to use is a pooled Z

Z= \frac{('p_{1} - 'p_{2}) - (p_{1} - p_{2})}{\sqrt{'p(1-'p)[\frac{1}{n_1} + \frac{1}{n_2} ]} } ≈ N(0;1)

The critical region is one-tailed to the right (positive), the critical value is:

Z_{1-\alpha } = Z_{0.95} = 1.64

If Z ≥ 1.64, you will reject the null hypothesis.

If Z < 1.64, you will not reject the null hypothesis.

Z= \frac{(0.6 - 0.09) - (0}{\sqrt{0.35(1-0.35)[\frac{1}{225} + \frac{1}{225} ]} } = 11.34

Since the calculated Z- value is greater than the critical value, the decision is to reject the null hypothesis. The population proportion vinyl gloves that leak viruses is greater than the population proportion of latex gloves that leak viruses.

P-value approach:

p-value < .00001

If you compare with the level of signification, you reach the same decision.

I hope it helps!

8 0
3 years ago
What is the conjugate of 5-8i ?
tatyana61 [14]

Just write 5-8i and then replace the - sign with the + sign:  5+8i.

6 0
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Read 2 more answers
Classify the following triangle check all tht apply
AlekseyPX

Answer:

Scalene and Right

Explanation:

Since there is a 90 degree angle within the triangle, the triangle can be classified as right (as 90 degrees equals a right angle).

The triangle is also scalene since all sides and angles are different, and are essentially not congruent.


6 0
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