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ladessa [460]
4 years ago
10

Construct the 95% confidence interval for the population mean using the appropriate distributions. a. A random sample of 50 peop

le’s body mass index has a mean of 27.7 and a standard deviation of 6.12. b. The average yards per carry among all NFL
Mathematics
1 answer:
SSSSS [86.1K]4 years ago
4 0

Answer: 95% confidence interval would be (26.01,29.39).

Step-by-step explanation:

Since we have given that

n = 50

Mean = 27.7

Standard deviation = 6.12

We need to construct 95% confidence interval for the population.

so, z = 1.96

So, it becomes,

\bar{x}\pm z\times \dfrac{\sigma}{\sqrt{n}}\\\\=27.7\pm 1.96\times \dfrac{6.12}{\sqrt{50}}\\\\=27.7 \pm 1.69\\\\=(27.7-1.69,27.7+1.69)\\\\=(26.01,29.39)

Hence, 95% confidence interval would be (26.01,29.39).

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                         (12 km) x (3280.84 ft / 1 km) = 39370.08 feet
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Write a real world situation that could be represented by the equation shown below y= -10x - 15
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Example (not a very likely example, however):

At 11 pm the temperature is -15 degrees F, and it continues to drop by 10 degrees F every hour.
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3 years ago
A square garden has a side length of 11 meters. What is the area of the garden? What is the perimeter?
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Answer:

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<em>perimeter</em><em> </em><em>of</em><em> </em><em>the</em><em> </em><em>garden</em><em>=</em><em>4</em><em>4</em><em> </em><em>meter</em>

Step-by-step explanation:

Area of a square=side*side

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=<u>1</u><u>2</u><u>1</u><em><u>s</u></em><em><u>q</u></em><em><u>u</u></em><em><u>a</u></em><em><u>r</u></em><em><u>e</u></em><em><u> </u></em><em><u>meter</u></em>

Perimeter of a square garden=side*4

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Answer:

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Step-by-step explanation:

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Answer: No

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Answer:

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Step-by-step explanation:

1.50 * 4

6

Hope it is useful

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