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3 years ago

please answer ALL questions shown for 30 points. if you need me to type the questions answer and i will comment to type them.

Mathematics

1 answer:

creativ13 [48]3 years ago

3 0

Answer: Type the questions please and take a clearer photo

Step-by-step explanation:

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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

2 years ago

What is the third angle in a triangle with two angles of 60* and 45*

REY [17]

The answer is 75° because all three angles of a triangle must add to 180°

6 0

2 years ago

What is the equation of the following graph?

ser-zykov [4K]

Answer:

y=0.5x + 5

Step-by-step explanation:

The points are (0,5) and (-10,0)

to find the slope do

0-5/-10-0 = 5/10 = 1/2 = 0.5

next plug one of the points into point slope formula

y-y1=m(x-x1)

lets use the point (-10,0)

y1=0

x1= -10

m= 0.5

y-0=0.5(x- -10)

y = 0.5(x+10)

distribute the 0.5

y=0.5x+5

7 0

2 years ago

Original: $0.95, Markup: 60%

Mademuasel [1]

.57 is your answerrrr

3 0

2 years ago

Read 2 more answers

Hom many 1/4 ft fish food boxes could fit in a 3 3/4 ft box

IrinaK [193]

Answer : There are 13 fish food bags are could fit in a box of size $3\frac{1}{4} ft$ .

Explanation :

Length of box = $3\frac{3}{4}$ ft

Length of fish food box = $\frac{1}{4}$ ft

Number of fish food boxes could fit in a box = $\frac{\text{length of a box}}{\text{length of fish food box}}$

Number of fish food boxes could fit in a box $=\frac{3\frac{1}{4}}{\frac{1}{4}}\\=\frac{\frac{13}{4}}{\frac{1}{4}}\\= \frac{13}{1}$

Hence, there are 13 fish food bags are could fit in a box of size $3\frac{1}{4} ft$ .

3 0

2 years ago