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3 years ago

Which of the following is NOT a true statement?

Mathematics

2 answers:

Reptile [31]3 years ago

8 0

Answer:

The correct answer would be B.

Mandarinka [93]3 years ago

4 0

B. Angle 2 and angle seven are actually alternate exterior angles.

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A group of researchers are interested in the possible effects of distracting stimuli during eating, such as an increase or decre

Dmitry [639]

Using the t-distribution, it is found that since the p-value of the test is of 0.0302, which is less than the standard significance level of 0.05, the data provides convincing evidence that the average food intake is different for the patients in the treatment group.

At the null hypothesis, it is tested if the consumption is not different, that is, if the subtraction of the means is 0, hence:

$H_0: \mu_1 - \mu_2 = 0$

At the alternative hypothesis, it is tested if the consumption is different, that is, if the subtraction of the means is not 0, hence:

$H_1: \mu_1 - \mu_2 \neq 0$

Two groups of 22 patients, hence, the standard errors are:

$s_1 = \frac{45.1}{\sqrt{22}} = 9.6154$

$s_2 = \frac{26.4}{\sqrt{22}} = 5.6285$

The distribution of the differences is has:

$\overline{x} = \mu_1 - \mu_2 = 52.1 - 27.1 = 25$

$s = \sqrt{s_1^2 + s_2^2} = \sqrt{9.6154^2 + 5.6285^2} = 11.14$

The test statistic is given by:

$t = \frac{\overline{x} - \mu}{s}$

In which $\mu = 0$ is the value tested at the null hypothesis.

Hence:

$t = \frac{25 - 0}{11.14}$

$t = 2.2438$

The p-value of the test is found using a two-tailed test, as we are testing if the mean is different of a value, with t = 2.2438 and 22 + 22 - 2 = 42 df.

Using a t-distribution calculator, this p-value is of 0.0302.

Since the p-value of the test is of 0.0302, which is less than the standard significance level of 0.05, the data provides convincing evidence that the average food intake is different for the patients in the treatment group.

A similar problem is given at brainly.com/question/25600813

4 0

3 years ago

MA = 8x – 2, mB = 2x – 8, and mC = 94 – 4x. List the sides of ABC in order from shortest to longest.

LUCKY_DIMON [66]

I hope this helps you

3 0

3 years ago

What is -(x - 8) simplified?

expeople1 [14]

You really can’t simply it but if u use disruptive property it would be -x - -8

5 0

3 years ago

Bethany s making trail mix with 3 cups of raisins for every 2 cups of peanuts

DaniilM [7]

Answer:

4 cups of raisins

3 cups of dates

6 cups of peanuts

and 2 cups of cashews

ratio cashews to raisins= 2:4

= 1:2

ratio dates to peanuts= 3:6

= 1:2

5 0

4 years ago

Carmen spent a total of $60 at the grocery store. of this amount, she spent $57 on fruit. What percentage of the total did she s

sdas [7]

The easiest way to determine the answer is to just divide $57/$60 = 0.95 or 95%

7 0

2 years ago