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UkoKoshka [18]
3 years ago
6

the ratio of an object's weight on earth to its weight on the moon is 6:1. the first person to walk on the moon was Neil Armstro

ng. he weighed 165 pounds on earth how much did he weigh on the moon
Mathematics
1 answer:
Greeley [361]3 years ago
8 0

\frac{165}{6}  = 27.5 lbs
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a study is planned to compare the proportion of men who dislike anchovies with the proportion of women who dislike anchovies. th
e-lub [12.9K]

Answer:

d. No because n·(1 - \hat p) = 8.96 is less than 10

Step-by-step explanation:

Question options;

a. Yes because the sample sizes of both groups are greater than 5

b. Yes, because in both cases n·\hat p > 10

c. Yes, because we know that the population is evenly distributed

d. No, because the n·(1 - \hat p) is less than 10

Explanation;

The given data are;

The number of men in the sample of men, n₁ = 41

The proportion of men who dislike anchovies, \hat p_1 = 0.67

The number of women in the sample of women, n₂ = 56

The proportion of men who dislike anchovies, \hat p_2 = 0.84

The assumptions for an analysis of the difference between means using a T-test are;

1) The data should be from a random sample of the population

2) The variables should be approximately normal (n·\hat p ≥ 10, and n·(1 - \hat p) ≥ 10)

3) The scale of the data is a continuous ordinance scale

4) The sample size should be large

5) The sample standard deviations should be approximately equal

From the requirement for normality, we have;

For the sample of men, n₁·\hat p₁  = 41 × 0.67 = 24.47 > 10

n₁·(1 - \hat p₁) = 41 × (1 - 0.67) = 13.53 > 10

For the sample of women, n₂·\hat p₂  = 56 × 0.84 = 47.04 > 10

n₂·(1 - \hat p₂) = 56 × (1 - 0.84) = 8.96 < 10

Therefore, the for n₂·(1 - \hat p₂), the sample does not meet the requirement for normality

The correct option is d. No because n₂·(1 - \hat p₂) = 8.96 is less than 10

3 0
2 years ago
What’s the area and the perimeter and of the triangle?
maw [93]

Answer:

42.9

Step-by-step explanation:

8.25x 5.2

Triange formula = b x h

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2 years ago
dana has 6 hours to spend training for an uncoming race. if she runs at a speed of 9 mph and walks back at a speed of 3 mph, how
Viktor [21]

Let w = the walking time

the total time is given as 1 hr, therefore (1-w) = running time

Walking dist and running dist is the same

Write a distance equation: dist = speed * time

3w = 9 (1-w)

3w = 9 - 9w

3w + 9w = 9

12w = 9

w = 9/12 = 3/4 hrs walking back

8 0
3 years ago
What is the point-slope form of a line that has a slope of One-half and passes through point (–7, 2)?
antoniya [11.8K]

Answer:

D.  y - 2 = 1/2(x - (-7))

Step-by-step explanation:

Stay home and stay safe!

6 0
3 years ago
Read 2 more answers
I need help solve this
BARSIC [14]

The set of coordinates in order from top to bottom: (0,3) (1,4) (2,5) (3,6) (4,7)

you get this by adding three to the x value in the ordered pair (x,y)

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