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Solnce55 [7]
3 years ago
7

A school psychologist is interested in determining if children with attention deficit disorder (ADD) learn better if English lit

erature is read to them rather than having them read the material themselves. A random sample of 10 sixth graders with ADD is selected and divided into two groups of 5 each. One of the groups has a story read to them (Listening Group) and the other reads the story themselves (Reading Group). A quiz on the story is given after each group has finished reading or hearing the story. The following scores were obtained with 20 being a perfect score.
Reading Group Listening Group
8 15
10 12
7 13
12 11
6 10

What do you conclude, using α= 0.052 tail?

a. Reject the null hypothesis
b. Retain the null hypothesis
c. No answer text provided.
d. No answer text provided.
Mathematics
1 answer:
boyakko [2]3 years ago
7 0

Answer:

The answer is "Option a"

Step-by-step explanation:

The Rejecting or the null hypothesis is refused by the refuting were used when the significance for our data analysis is less than the cut-off points, for example, either 0.05 or 0.01, therefore reject the null accept the alternative hypothesis, that's why in this question, the first choice is correct.

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3n^2=6-17n I need Vertex form please.
nasty-shy [4]

Answer:

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Step-by-step explanation:

3n² = 6 - 17n ⇔ 3n² + 17n - 6 = 0

3( n² + 2 × \frac{17}{6} n + ( \frac{17}{6} )² - ( \frac{17}{6} )² - 2 ) = 0

3( n + \frac{17}{6} )² - 3 × \frac{289}{36} - 6 = 0

3( n + \frac{17}{6} )² - \frac{361}{12} = 0

8 0
3 years ago
What are the domain and range of the function f(x)=-3(x-5)squared+4
svet-max [94.6K]
Domain is all real numbers
range
hmm
we know that x^2=a positive number
then multiply it by that negative -3
therefor the range is going to be mostly negative
if we make the x-5  equal to zero, then there is no negative, so
wher x=5, then f(5)=0+4=4
the highest positive number you can get is f(5)=4

so therfor

domain=all real number
range is x≤4
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3 years ago
How to convert 1500 ml to liters
Zepler [3.9K]
Divide 1500 by 1000
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7 0
3 years ago
Given f(x) = -3x + 3, solve for x when f(x) = 9.
Virty [35]

Answer:

x = -2

Step-by-step explanation:

f(x) = -3x + 3

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6 0
3 years ago
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