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kiruha [24]
4 years ago
7

Subtract.

Mathematics
1 answer:
ExtremeBDS [4]4 years ago
8 0
D. 10.48 because when two negatives are next to each other it becomes a positive and you add.
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Several years ago, the mean height of women 20 years of age or older was 63.7 inches. Suppose that a random sample of 45 women w
VikaD [51]

Since the p - value is less than significance level . So, we will accept the null hypothesis.

​(a) State the appropriate null and alternative hypotheses to assess whether women are taller today.

Definition of null hypothesis : The null hypothesis attempts to show that no variation exists between variables or that a single variable is no different than its mean. it is denoted

Alternative Hypothesis : In statistical hypothesis testing, the alternative hypothesis is a position that states something is happening, a new theory is true instead of an old one (null hypothesis).

We are given that The mean height of women 20 years of age or older was 63.7 inches.

So, null hypothesis :  H₀ : μ = 63.7

Alternative Hypothesis :  H₁ : μ > 63.7

b)The​ P-value for this test is 0.06.

The p-value represents the probability of getting a sample mean height of 20 years old women is  64.1 inches.

c) Write a conclusion for this hypothesis test assuming an alpha equals 0.10 level of significance.

p- value = 0.06

Since the p - value is less .

So, we will accept the null hypothesis

So,  

Hence The mean height is 63.7 inches

To learn more about hypothesis testing from the given link

brainly.com/question/12976831

#SPJ4

7 0
2 years ago
Can someone please help me!!! Also does anyone know if there is a website or calculator that may give me the answers? Please hel
Airida [17]

Answer:

x = 17

Step-by-step explanation:

2x + 7 = 3x - 10 (alternate exterior angles are congruent when a transversal cuts across two straight lines)

2x - 3x = -7 - 10 (collecting like terms)

- x = -17

\frac{-x}{-1} = \frac{-17}{-1} (dividing both sides by -1)

x = 17

4 0
3 years ago
A line has a slope of 1 and passes through the point (-8, -7). What is its equation in
AlekseyPX

Answer: y = x + 1

Step-by-step explanation:

y = 1x + c

-7 = 1(-8) + c

-7 = -8 + c

-7 + 8 = c

1 = c

y = 1x + 1 or

y = x + 1

4 0
3 years ago
Read 2 more answers
In the pup tent shown at the right, the two sides meet at the top to form a 72 angle. If the tent pole bisects the angle, what a
Sphinxa [80]

Answer:

36°

Step-by-step explanation:

The image of the question is obtained online and attached to the solution of this question.

The tent pole is the line in the middle of the triangle and it is stated explicitly in the question that this tent pole bisects the angle that the two sides make with each other at the top.

So, the angle that the tent pole makes with each side = (72°/2) = 36°

Hope this Helps!!!

4 0
3 years ago
For a particular cargo train, the amount of fuel needed for a trip varies directly with the number of miles it plans on travelin
Katyanochek1 [597]
2250 gallons. You have to think of the ratio. 300•750=225000
225000/100=2250
You have to do cross multiplication
4 0
3 years ago
Read 2 more answers
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