3 years ago

Which point on the number line best represents √67?

Mathematics

1 answer:

Zepler [3.9K]3 years ago

4 0

Answer: C

Step-by-step explanation: The square root of 67 is 8.18

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

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

SD =2.93

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

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3 years ago

A company that makes hair-care products had 3,000 people try a new shampoo. Of the 3,000 people, 18 had a mild allergic reacti

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60%

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There was a total of 3000 people and of those 3000 people only 18 had a mild allergic reaction.

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% saved = 25%

Money saved = $8.80

Let x be the bill before the coupon discount.

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