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3 years ago

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How would I do this?

1 answer:

Lelu [443]3 years ago

8 0

I'm not sure about part B, but part A will have the answer "if Ron eats lunch today, then he will drink a glass of milk" (without quotes of course)

The idea is that we have these arguments in symbolic form
P = Ron eats lunch today
Q = Ron eats a sandwich
R = Ron will drink a glass of milk

The format is
"If P then Q" ----> "if Q then R" so therefore "If P then R"

We see that P leads to Q, then Q leads to R. So overall P leads to R. We connect them as a chain of sorts. We can skip over Q since we know the first point will lead to the last. Think of it as a shortcut of sorts.

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The first eight quizzes in this class had average scores of 8,9,9,8,8,9,8,7. This gives a sample mean of 8.25 and a sample stand

alexira [117]

Answer:

<em>Test statistic </em>

<em> </em> $t = \frac{x^{-} -mean}{\frac{S}{\sqrt{n} } }$

t = <em>1.076</em>

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given Mean of the Population (μ) = 8.0

<em>Mean of the sample (x⁻) = 8.25</em>

Given data

8,9,9,8,8,9,8,7

Given sample size n= 8

Given sample standard deviation(S) = 0.661

<u><em>Step(ii):-</em></u>

<em>Null hypothesis : H: (μ) = 8.0</em>

<em>Alternative Hypothesis :H:(μ) > 8.0</em>

<em>Degrees of freedom = n-1 = 8-1=7</em>

<em>Test statistic </em>

<em> </em> $t = \frac{x^{-} -mean}{\frac{S}{\sqrt{n} } }$ <em></em>

<em> </em> $t = \frac{8.25 -8.0}{\frac{0.661}{\sqrt{8} } }$ <em></em>

<em> t = 1.076</em>

<em>Critical value </em>

<em> t₍₇,₀.₀₅₎ = 2.3646</em>

<em>The calculated value t = 1.076 < 2.3646 at 0.05 level of significance</em>

<em>Null hypothesis is accepted</em>

<em>Test the hypothesis that the true mean quiz score is 8.0 against the alternative that it is not greater than 8.0</em>

<em></em>

3 0

3 years ago

How can Victoria justify Step 3 of her work? Rewrite the expression on the left using the distributive property. Multiply both s

ivolga24 [154]

Rewrite the expression on the left using the distributive property

8 0

3 years ago

Read 2 more answers

Make a the subject of a2+b2=c2

wel

Answer:

$a=\sqrt{c^2-b^2$

⇒ $a=\sqrt{(c+b)(c-b)}$ [Factorized form]

Step-by-step explanation:

Given expression:

$a^2+b^2=c^2$

We need to make $a$ the subject.

In order to do that we need to solve the expression for $a$ in terms of $b$ and $c$

We have,

$a^2+b^2=c^2$

Subtracting both sides by $b^2$

$a^2+b^2-b^2=c^2-b^2$

$a^2=c^2-b^2$

Taking square root both sides in order to remove square of $a$

$\sqrt{a^2}=\sqrt{c^2-b^2}$

$a=\sqrt{c^2-b^2$

The difference of squares can be factorized and written as:

$a=\sqrt{(c+b)(c-b)}$ [difference of squares $x^2-y^2=(x+y)(x-y)$ ]

4 0

3 years ago

Math help pls, thank

galina1969 [7]

Question 5) A and C are negative effects of fossil fuels usage

Question 6) starts - 1, 5, 2, 3, 4

6 0

3 years ago

The base of a triangle is 6 meters longer than the height of the triangle. If the area of the triangle is 108 square meters, wha

Nonamiya [84]

Answer:

36 meters

Step-by-step explanation:

A=1/2b×h

108sq. m=1/2.6m×h

both side canceling meter

h=2×108m/6

h=36m. answer

4 0

3 years ago