3 years ago

Which comparison is TRUE?

Mathematics

2 answers:

choli [55]3 years ago

7 0

Answer:

Step-by-step explanation:

maria [59]3 years ago

6 0

Answer:

Step-by-step explanation:

A. 8 > 1

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A density graph for all of the possible times from 50 seconds to 300 seconds can be used to find which of the foll

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Step-by-step explanation:

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3 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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3 years ago

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poizon [28]

Answer:

Step-by-step explanation:

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2 years ago

Please please please help me thanks

goldfiish [28.3K]

Answer:

1. 57 2. 81

Step-by-step explanation:

71x2=142 256-142=114/2= 57

5103/63= 81

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goblinko [34]

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