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3 years ago

One positive number is 4 more that twice another. is the product

1 answer:

7 0

I believe that the first number is 4 and that is more then twice of the other which would make the second number 1 and because there is a product that would mean its 4x1 which the answer is 4

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

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

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

SD =2.93

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

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

$t_{s} = -0.6033$

6 0

3 years ago

Write in exponential form: 5yxyxyxy

Ainat [17]

Exponential form has the little number exponent at the top but sadly I can only represent that here with a ^ meaning to the power of.

5y^4*x^3

5 0

3 years ago

SOLVE ILL GIVE BRAINLYIST

Paraphin [41]

Answer:

28.1%

Step-by-step explanation:

Population increased by (561000-438000)=123000

rate of increase

= (123000/438000)*100

=28.08

=28.1

5 0

2 years ago

Read 2 more answers

Express the location of the point on the number line as both a fraction and a decimal.

insens350 [35]

Decimal: 0.3
Fraction: 3/10

3 0

2 years ago

The number of eggs e in the carton and the total costs t of the eggs. what is the dependent variable

just olya [345]

T because you need to know the number of eggs, e, to know how much it costs.

6 0

3 years ago