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horsena [70]
2 years ago
5

What is the median of the data set? {20, 25, 36, 41, 87, 91, 92, 95, 99}

Mathematics
2 answers:
Kamila [148]2 years ago
5 0
Ur answer is 87 bam wham turkey and ham
Gemiola [76]2 years ago
3 0

Answer:

87

Step-by-step explanation:

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The average systolic blood pressure was found to be 140 mm for people who have high responsibility jobs, specifically investment
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Answer:

Option B)

H_{0}: \mu = 140\text{ mm}\\H_A: \mu < 140\text{ mm}

Step-by-step explanation:

We are given the following in the question:

Hypothesis:

The doctors and u=instructor claims that practicing yoga reduces blood pressure and hence is beneficial to people.

Population mean, μ =  140 mm

Sample mean, \bar{x} =  139 mm

Sample size, n = 51

Sample standard deviation, s = 5 mm

Thus, we can design the null hypothesis and alternate hypothesis as

H_{0}: \mu = 140\text{ mm}\\H_A: \mu < 140\text{ mm}

The null hypothesis states that the population have a blood pressure of 140 mm. The alternate hypothesis states that yoga reduces the blood pressure and the sample has a blood pressure less than 140 mm.

Thus, the correct answer is

Option B)

H_{0}: \mu = 140\text{ mm}\\H_A: \mu < 140\text{ mm}

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2 years ago
An airplane flies 3,080 km from Houston to New York at a speed of 770 km/h. How long did it take the plane to travel that distan
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Answer:

time = distance/speed

3080/770 = 4

So it took 4 hours.

Step-by-step explanation:

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3 years ago
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A man traveled a certain number of miles by automobile and then nine times as far by airplane. His total trip was 600 miles in l
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Bsolute Value is the distance from
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Answer:

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Step-by-step explanation:

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