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raketka [301]
3 years ago
14

Which shows a correct order to solve this story problem?

Mathematics
1 answer:
Nesterboy [21]3 years ago
6 0
Answer is C

3.2 oz + 4.7oz = 7.9 oz * 4 = 31.6oz total
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A researcher claims that the average body mass index (BMI) of adult Canadians is more than 25.0. He takes a SRS of 250 Canadians
Serjik [45]

Answer:

The probability of obtaining a result equivalent to or greater than what was the truly observed value of the test statistic is 0.001.

Step-by-step explanation:

The researcher can use a one sample <em>z</em> test to determine whether his claim is correct or not.

The hypothesis to test whether the mean BMI is more than 25.0, is defined as:

<em>H₀</em>: The mean BMI is not more than 25.0, i.e. <em>μ </em>≤ 25.0.

<em>Hₐ</em>: The mean BMI is more than 25.0, i.e. <em>μ </em>> 25.0.

The test statistic is defined as:

z=\frac{\bar x-\mu}{\sigma/\sqrt{n}}

The <em>p</em>-value of the test is,

<em>p</em> = 0.001.

The p-value is well-defined as per the probability, [under the null-hypothesis (<em>H₀</em>)], of attaining a result equivalent to or greater than what was the truly observed value of the test statistic.

A small p-value (typically ≤ 0.05) specifies sufficient proof against the null hypothesis (<em>H₀</em>), so you discard <em>H₀</em>. A large p-value (> 0.05) specifies fragile proof against the <em>H₀</em>, so you fail to discard <em>H₀.</em>

The <em>p</em>-value of 0.001 indicates that the probability of obtaining a result equivalent to or greater than what was the truly observed value of the test statistic is 0.001.

As the <em>p</em>-value is very small, the null hypothesis will be rejected at any level of significance.

Thus, concluding that the mean BMI of adult Canadians is more than 25.0.

3 0
3 years ago
Write 0.4 as a fraction
scoundrel [369]
0.4 / 2 = 0.2

1/0.2 = 5

2/5 is the answer
4 0
3 years ago
Find the slope of (0,0) (6,8)
lara31 [8.8K]

Answer:

8/6 or 4/3

Step-by-step explanation:

Rise divided by run. Rise is difference in y values. 8-0=8

Run is difference in x values 6-0=6

Divide 8/6 then simplify. 4/3

8 0
3 years ago
Seniors at a high school were asked what color car they drive. The results were put in a circle graph. The measure of each centr
horrorfan [7]

Answer:

P(The color of the car is red)  is 0.32 .

P(The color of the car is white) is 0.34 .

P(The color of the car is silver) is 0.19 .

P(The color of the car is blue) is 0.15 .

P(car color is not red or blue) is 0.53 .

Step-by-step explanation:

We know that total angle subtended at the center by a complete circle is

360° .

According to the question,

P(The color of the car is red)

= \frac {115.2}{360}

= 0.32

P(The color of the car is white)

= \frac {122.4}{360}

= 0.34

P(The color of the car is silver)

= \frac {68.4}{360}

= 0.19

P(The color of the car is blue)

= \frac {54}{360}

= 0.15

So

P(car color is not red or blue)

= 1 - (0.15 + 0.32)

= 0.53

6 0
3 years ago
Read 2 more answers
Which equation represents the line that passes through the point (7, -12) and is perpendicular to the y-axis?
iragen [17]
Hello,
we must find all lines which is perpendicular to oy thus parallele to ox

y=-12 passes by (7,-12)
Answer B
3 0
3 years ago
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