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svetlana [45]
3 years ago
9

Can you help me out please

Mathematics
1 answer:
Bezzdna [24]3 years ago
7 0

3. $2 for 1 pineapple

4. 35 miles in 1 hour

5. $7 in 1 hour

6. 3 times in 1 second

7. 175 feet in 1 sec

8. 1 glass of juice contains 3 gram of sugar

9. 15 page in 1 day

10. speed of international space station is

7.7 km in 1 second

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Helppppp and explain tooo pls and thankyouuu
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---            ---

|  -5     -2   |

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---           ----

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3 years ago
Two equal groups of seedlings, and equal in height, were selected for an experiment. One group of seedlings was fed Fertilizer A
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Answer:

Null Hypothesis: H_0: \mu_A =\mu _B or \mu_A -\mu _B=0

Alternate Hypothesis: H_1: \mu_A >\mu _B or \mu_A -\mu _B>0

Here to test Fertilizer A height is greater than Fertilizer B

Two Sample T Test:

t=\frac{X_1-X_2}{\sqrt{S_p^2(1/n_1+1/n_2)}}

Where S_p^2=\frac{(n_1-1)S_1^2+(n_2-1)S_2^2}{n_1+n_2-2}

S_p^2=\frac{(14)0.25^2+(12)0.2^2}{15+13-2}= 0.0521154

t=\frac{12.92-12.63}{\sqrt{0.0521154(1/15+1/13)}}= 3.3524

P value for Test Statistic of P(3.3524,26) = 0.0012

df = n1+n2-2 = 26

Critical value of P : t_{0.025,26}=2.05553

We can conclude that Test statistic is significant. Sufficient evidence to prove that we can Reject Null hypothesis and can say Fertilizer A is greater than Fertilizer B.

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3 years ago
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f

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