A researcher conducts a repeated-measures study comparing two treatment conditions (before and after) with a sample of n = 20 participants and obtains a t statistic of t = 4.21. What is the correct decision for a one-tailed test

Answers

Answer 1

Answer:

Reject the null hypothesis with a one-tailed test but fail to reject with two tails

Explanation:

Related Questions

On Tuesday, Jennifer will mix Crunchy Grain cereal
with Super Grain cereal for her breakfast. Super
Grain cereal provides 240 calories per cup. If the total
number of calories in one cup of Jennifer's mixture is
270, how much Super Grain cereal is in one cup of
the mixture?
270, how much super grain cereal is in one cup?

Answers

Answer:

there are 1/4 cups of Super Grain Cereal in the mixture

Explanation:

Super Grain cereal provides 240 calories per cup. Thus, for s cups of Super Grain cereal, there will be 240s calories

Crunchy Grain cereal provides 210 calories per 3/4 cups. Thus, 210 ÷ 3/4 per cup.

210 ÷ 3/4 = 280 calories, For c cups of Crunchy Grain cereal, there will be 280c calories

Jennifer mixes c cups of Crunchy Grain cereal, having 280 calories and s cups of Super Grain cereal, having 240 calories to get a final 1 cup mixture containing 270 calories, which can be expressed mathematically as:

280c + 240s = 270 ------- eqn(1)

Since, s cups of Super Grain cereal and c cups of Crunchy Grain cereal equals 1 cup, of the final mixture

c + s = 1 ------- eqn(2)

from eqn(2),

c = 1 - s

substitute c = 1 - s into eqn(1)

280(1 - s) + 240s = 270

280 - 280s + 240s = 270

- 40s = 270 - 280

-40s = -10

s = (-10)/(-40)

s = 1/4

Therefore, there are 1/4 cups of Super Grain Cereal in the mixture

Ans B

(Hope this helps can I pls have brainlist (crown)☺️)

The serving made by Jennifer on Tuesday contains 1/4 cup of Super Grain cereal. Thus, option B is correct.

What is the mathematical expression?

The mathematical expression is given as the representation of the quantities in terms of variables.

The complete question is given in the image attached below.

The serving of 3/4 cup of Crunchy cereal = 210 calories

The serving of x cup of Crunchy cereal = 210/3/4 * x

The serving of x cup of Crunchy cereal = 280x calories

The serving of 1 cup Super Grain cereal = 240 calories

The serving of y cup of Super Grain cereal = 240y calories

The total serving made by Jennifer on Tuesday = 270 calories

280x + 240y = 270 calories

The serving made by Jennifer = 1 cup

x + y = 1 cup

x = 1 - y

Substituting the value of x in the equation of calorie:

280 (1 - y) + 240y = 270

280 - 280y + 240y = 270

280 - 270 = 280y - 240y

y = 1/4

The serving of super grain cereal made by Jennifer on Tuesday was y cup. Thus, super grain cereal in one cup was 1/4. Hence, option B is correct.

Learn more about mathematical expression, here:

https://brainly.com/question/14462529

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explain the process of reproduction of spore bearing plants

Answers

[tex]\red{\bold{Answer:}}[/tex]

The term is also used to refer to the process of reproduction via spores. Reproductive spores were found to be formed in eukaryotic organisms, such as plants, algae and fungi, during their normal reproductive life cycle.

Under favourable conditions the spore can develop into a new organism using mitotic division.

^_^ ❤

My dog, Stella, loves to go for walks in good weather but refuses to step outside if it is raining.

thats finre

What is the function of the word but in the sentence? plz
help me

adjective

conjunction

preposition

adverb

Answers

It is most likely conjunction, because a conjunction is a word used to connect sentences or to coordinate words in the same clause. Example, and, but, if.

What does this sign mean?

Answers

Answer:

what sign , and it's an incomplete question

Explanation:

thank you

desarrollos que se dieron durante el oCómo crees que será el día que estaremos frente a Jesús adorándolelimpo radical

Answers

what i speak english

Does anyone know the solution

Answers

Answer and explanation in the image.

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