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Y_Kistochka [10]
3 years ago
11

Testing: H 0 : μ ≥ 15.6 H 1 : μ < 15.6 Your sample consists of 46 values, with a sample mean of 13.4. Suppose the population

standard deviation is known to be 4.47. a) Calculate the value of the test statistic, rounded to 2 decimal places. z =
Mathematics
1 answer:
guajiro [1.7K]3 years ago
5 0

Answer:

The value of the test statistic is <em>z</em> = 3.34.

Step-by-step explanation:

The information provided is:

\bar x=13.4\\\sigma = 4.47\\n=46

The test statistic is:

Z=\frac{\mu-\bar x}{\sigma/\sqrt{n}}

  =\frac{15.6-13.4}{4.47/\sqrt{46}}\\\\=3.33806\\\\\approx 3.34

Thus, the value of the test statistic is <em>z</em> = 3.34.

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Answer:

1847.26 yards cubed

Step-by-step explanation:

V=πr^2h

π*49*12= 1847.26

Have a good day :)

7 0
3 years ago
Please help on this I’m too dum
bezimeni [28]
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4 years ago
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The length of a rectangle is 3 times its width. The perimeter of the rectangle is 56 inches. What are the dimensions of the rect
dangina [55]

Answer:

Width=7

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Step-by-step explanation:

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4 0
3 years ago
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On the way to school, if the ratio of walkers to bus riders is 2:7, then the number of bus riders is ________ times the number o
Serggg [28]
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5 0
3 years ago
The volume of a rectangular prism is (x^4+4x^3+3x^2+8x+4), and the area of its base is (x^3+ 3x^2+8). If the volume of a rectang
vovikov84 [41]
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2)

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It was expected an exact division, so likely some of the terms is not properly written. Now you know the procedure and can perform it with the right terms.
7 0
4 years ago
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