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3 years ago

If we reject the null hypothesis, can we claim to have proved that the null hypothesis is false? why or why not?

1 answer:

7 0

Yes, you can claim that the null hypothesis. But you must pay attention the p-value. If the p-value is higher than the significant value the null hypothesis can't be rejected.

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There are 12 tennis racquets and 8 hockey sticks in a gym class. What percent of the gym equipment in the class are hockey stick

katrin2010 [14]

40% of the equipment in the class are hockey sticks

12+8=20
8/20 × 100=40

7 0

3 years ago

Can anyone help me on this expression triangle

Sauron [17]

Answer:

3a+7=5a-3

5a-3a=3+7

2a=10

a=5

Again

6b-5=2b+9

6b-2b=5+9

4b=14

b=14/4=7/2

Step-by-step explanation:

5 0

3 years ago

Item 19 The scale on a map is 1 cm:30 mi. The distance on the map between San Francisco, CA, and Chicago, IL, is 61.9 cm. What i

Harlamova29_29 [7]

Answer:

1857 miles.

Step-by-step explanation:

We have been given that the scale on a map is 1 cm:30 mi. The distance on the map between San Francisco, CA, and Chicago, IL, is 61.9 cm. We are asked to find the actual distance between San Francisco and Chicago.

We will use proportions to solve our given problem.

$\frac{\text{Actual distance}}{\text{Map distance}}=\frac{30\text{ miles}}{1\text{ cm}}$

Upon substituting map distance between San Francisco and Chicago, we will get:

$\frac{\text{Actual distance}}{61.9\text{ cm}}=\frac{30\text{ miles}}{1\text{ cm}}$

$\frac{\text{Actual distance}}{61.9\text{ cm}}\cdot 61.9\text{ cm}=\frac{30\text{ miles}}{1\text{ cm}}\cdot 61.9\text{ cm}$

$\text{Actual distance}=30\text{ miles}\cdot 61.9$

$\text{Actual distance}=1857\text{ miles}$

Therefore, the actual distance between San Francisco and Chicago is 1857 miles.

4 0

3 years ago

I GIVEEEEEEEEE BRAINLISTTTT

LuckyWell [14K]

Answer:

(x,y)--> (x+4,y-4)

Step-by-step explanation:

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2 years ago

Math question || thank uu

lesya [120]

Answer:

Step-by-step explanation:

plot an open circle on the 4 and a closed circle on the 10. Then draw a line that goes from 4 to 10.

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2 years ago

If we reject the null​ hypothesis, can we claim to have proved that the null hypothesis is​ false? why or why​ not?

If we reject the null hypothesis, can we claim to have proved that the null hypothesis is false? why or why not?