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EastWind [94]
3 years ago
14

"A researcher collects 25 data points that yield a mean of 8.164 and a standard deviation (based on N – 1) of 2.237. What is the

standard error for the distribution of means?"
Mathematics
2 answers:
aleksley [76]3 years ago
6 0

Answer:

Standard error for the distribution of means = 0.4474

Step-by-step explanation:

Standard error for the distribution of means is given as

σₓ = σ/√n

where σ = standard deviation = 2.237

n = sample size = 25

σₓ = (2.237/√25)

σₓ = 0.4474

Hope this Helps!!!

Oxana [17]3 years ago
6 0

Answer:

The standard error for the distribution of means is 0.457.

Step-by-step explanation:

The standard error for the distribution of means is given as sample standard deviation divided by the square root of (N - 1)

sample standard deviation = 2.237

N is sample size = 25

Standard error = 2.237 ÷ sqrt(25 - 1) = 2.237 ÷ sqrt(24) = 2.237 ÷ 4.899 = 0.457

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Answer:

<em>A. y-5 = 1/4(x+1)</em>

Step-by-step explanation:

The equation of a line parallel to the line y = 1/4x - 6 and passing through the point can be expressed in slope-intercept form of the equation

y-y₀ = m(x-x₀) where;

(x₀, y₀) is the given point

m is the slope of the unknown line.

Since the unknown line is parallel to the given line  y = 1/4x - 6, they will have the same slope.

Let us get the slope of the known line  y = 1/4x - 6

Comparing the line  y = 1/4x - 6 with the standard equation of a line  

y = mx + c, the slope of the known line m = 1/4.

The slope of the unknown line is also equivalent to 1/4.

Substituting the given point  (−1, 5) and the calculate slope m into the slope-intercept form of the equation y-y₀ = m(x-x₀);

x₀ = -1, y₀ = 5 and m = 1/4

<em>Hence, the equation that Randolph is trying to find will be y-5 = 1/4(x-(-1)) i.e  </em><em>y-5 = 1/4(x+1)</em>

<em></em>

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Step-by-step explanation:

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it may help you

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At a school number of boys : number of girls = 11 : 9
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Ok, so 11:9
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