2 years ago

FIRST ONE TO ANSWER WINS BRAINLIEST (ANSWER THE RED) PLS

Mathematics

1 answer:

Troyanec [42]2 years ago

8 0

Answer:

Ok so Preston has 0.5 hags of mulch for each square yard on the first one and the second one is 1 yard per

Step-by-step explanation:

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64% of students will apply for graduate school. from a sample of 100 students, 52 stating that they will apply for grad school.

lana66690 [7]

Answer:

you<u> accept </u>the alternative hypothesis

Step-by-step explanation:

The null and alternative hypothesis can be computed as follows:

$H_o: p = 0.64 \\ \\ H_1: p \le 0.64$

The sample proportion $\hat p = \dfrac{x}{n}$

$\hat p = \dfrac{52}{100}$

$\hat p = 0.52$

The test statistics can be computed as:

$Z = \dfrac{\hat p -p_o}{ \sqrt{ \dfrac{p_o \times (1-p_o)}{ n} }}}$

$Z = \dfrac{0.52 -0.64}{ \sqrt{ \dfrac{0.64 \times (1-0.64)}{ 100} }}}$

Z = -2.5

The P-value = 2( Z< -2.5)

From the tables;

The P-value = 2 (0.0062)

The P-value = 0.0124

The significance level = 0.01

Since the P-value is > significance level; we fail to reject the null hypothesis.

Conclusion: we accept the alternative hypothesis

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2 years ago

JUST CHECKING MY ANSWER JS THJS RIGHT? I’ll mark BRAINLIEST

tia_tia [17]

Answer:

I cant see the whole thing But I think you're right

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2 years ago

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If Oscar the ostrich travels 78 miles in 2 hours on land, how fast does he travel?

Aleks04 [339]

Speed=distance traveled/time of the travel=78/2=39 mph

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Can you find 10/21 of 3/ 10

hoa [83]

<span>0.1428571428 would be the correct answer</span>

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A tank contains seven liters of 10% alcohol solution. how many liters of 6% alcohol should be added to have 8% alcohol solution?

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2 years ago