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rjkz [21]
3 years ago
10

Solve the problem. For large numbers of degrees of​ freedom, the critical chi χ squared 2 values can be approximated using the f

ormula chi χ squared 2 equals = one half (x plus StartRoot 2 x minus 1 EndRoot )squared 1 2 z+ 2k−12​, where k is the number of degrees of freedom and z is the critical value. To find the lower critical​ value, the negative ​z-value is​ used, to find the upper critical​ value, the positive ​z-value is used. Use this approximation to estimate the critical value of chi χ squared 2 in a​ right-tailed hypothesis test with n equals =143 and alpha α equals =0.01.
Mathematics
1 answer:
kykrilka [37]3 years ago
7 0

Answer:

0.01  =0.0001

Step-by-step explanation:

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klio [65]

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Step-by-step explanation:

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7 0
3 years ago
Find the volume to the nearest cm3<br> 20 cm<br> 35 cm<br> 12 cm
riadik2000 [5.3K]
Answer: 10380cm^3

Explanation:

Find the volume of half cylinder:

V = (pi x r^2 x h)/2 (I use pi = 22/7 for simplifying)
V = 22/7 x 6^2/2 x 35
V = 22/7 x 36/2 x 35
V = 22/7 x 35 x 18
V = 22 x 5 x 18
V = 1980cm^3

Find the volume of the rectangle:

V = 20 x 35 x 12
V = 240 x 5 x 7
V = 1200 x 7
V = 8400cm^3

Find the volume of the whole shape:

V = 1980 + 8400
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3 0
3 years ago
Find the reciprocal
Sav [38]

Answer:

Depends on what number(s)/fraction(s) your working with.

Step-by-step explanation:

Find the reciprocal of a fraction by flipping it. The definition of "reciprocal" is simple. To find the reciprocal of any number, just calculate "1 ÷ (that number)." For a fraction, the reciprocal is just a different fraction, with the numbers "flipped" upside down (inverted).

3 0
3 years ago
Help guys please It’s A TEST!
inysia [295]

Answer:

254.5m^2

Step-by-step explanation:

Use the formula for the area of a circle given the radius:

A = πr^2

A = 3.14(9)^2

A = 254.47m^2

Round to the nearest tenth:

A = 254.5m^2

4 0
2 years ago
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Lapatulllka [165]
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