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3 years ago

Helppppppp meeeeeee pleaseeeeee asappp

Mathematics

2 answers:

Tcecarenko [31]3 years ago

8 0

Answer:

Step-by-step explanation:

open circle, arrow pointing left

finlep [7]3 years ago

6 0

C will be your answer

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mario62 [17]

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2 years ago

Assume that you want to test the claim that the paired sample data come from a population for which the mean difference is μd =

swat32

Answer:

Test statistic, $t_{s} = -0.603$ (to 3 dp)

Step-by-step explanation:

Deviation, d = x -y

Sample mean for the deviation

$\bar{d} = \frac{\sum x-y}{n}$

$\bar{d} = \frac{(28-6) + (31-27)+(20-26)+(25-25)+(28-29)+(27-32)+(33-33)+(35-34)}{8} \\\bar{d} = -0.625$

Standard deviation: $SD = \sqrt{\frac{\sum d^{2} - n \bar{d}^2}{n-1} }$

$\sum d^{2} = (28-26)^2 + (31-27)^2 +(20-26)^2 +(25-25)^2 +(28-29)^2 +(27-32)^2 +(33-33)^2 +(35-34)^2\\\sum d^{2} = 63$

$SD = \sqrt{\frac{63 - 8 * (-0.625)^2}{8-1} }$

SD =2.93

Under the null hypothesis, the formula for the test statistics will be given by:

$t_{s} = \frac{ \bar{d}}{s_{d}/\sqrt{n} } \\t_{s} = \frac{- 0.625}{2.93/\sqrt{8} }$

$t_{s} = -0.6033$

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2 years ago

What is the difference between 2,386 and 7,000?<br> A. 9,386<br> B. 4,614<br> C. 5,614<br> D. 10,386

Anuta_ua [19.1K]

If you would like to know what is the difference between 7000 and 2386, you can calculate this using the following steps:

difference between 7000 and 2386:
7000 - 2386 = 4614

The correct result would be B. 4614.

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3 years ago

mr williams is making punch for his class party. the recipe he is using says to mix 3 cups pineapply juice, 7 cups mango juice a

maksim [4K]

Divide 12 by 72. this equals 6. then multiply. 7x6=47 3x6=18 and 5x6=30 there we go!

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2 years ago

Please Help,

SVETLANKA909090 [29]

Its maybe Find the area of the shaded portion sorry it’s wrong I tried my best

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2 years ago