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barxatty [35]
3 years ago
10

A trapezoid is a quadrilateral with exactly one pair of parallel sides A) true B)False

Mathematics
2 answers:
Alenkinab [10]3 years ago
7 0
The answer is true to your question
vodka [1.7K]3 years ago
7 0

TRUe ON ApeXXX

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In an effort to improve scores on college-entrance exams, the principal at a large high school chooses 35 students
denpristay [2]

Using the t-distribution, it is found that the test statistic for the hypotheses test is given by:

t = \frac{-1.75 - 0}{\frac{7.12}{\sqrt{35}}}

<h3>What are the hypotheses tested?</h3>

At the null hypotheses, it i tested if the mean difference remains the same, that is:

H_0: \mu  = 0

At the alternative hypotheses, it is tested if it has decreased, hence:

H_a: \mu < 0.

<h3>What is the test statistic?</h3>

The test statistic is given by:

t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}

The parameters are:

  • \overline{x} is the sample mean.
  • \mu is the value tested at the null hypothesis.
  • s is the standard deviation of the sample.
  • n is the sample size.

The parameters are given as follows:

\overline{x} = -1.75, s = 7.12, n = 35.

Hence the test statistic is given by:

t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}

t = \frac{-1.75 - 0}{\frac{7.12}{\sqrt{35}}}

More can be learned about the t-distribution at brainly.com/question/16162795

#SPJ1

5 0
2 years ago
Half the sum of X and Y decreased by 1/3 why
Allushta [10]
What is the question here.
(1/2)(X+Y)-(1/3)

8 0
3 years ago
No multiple choice just solve
marta [7]
Y=ab^x
logab=x

log7(1/343)=-3

y=7(1/343)^-3
4 0
3 years ago
4 friends earn $10.40 for washing a car. how each did each friend get
uysha [10]

Answer:

$2.60

Step-by-step explanation:


6 0
3 years ago
Read 2 more answers
F(x)=x^2-9x+2 evaluate f(-2)​
Anton [14]
I believe is your answer
Because u plug in -2 to all x
F(x)= (-2)^2-9(-2)+2
F(x)=4+18+2
F(x)=24
4 0
3 years ago
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