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Shtirlitz [24]
2 years ago
8

The mean of 20 items is 40 and the mean of

Mathematics
2 answers:
kipiarov [429]2 years ago
5 0

Answer:

At this point just choose a mean thats half of the value

wlad13 [49]2 years ago
4 0

Answer:

Just divide the value by 2 and you will get the mean

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What is the measure of QR to the nearest hundredth of a centimeter?
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2 years ago
A university investigation was conducted to determine whether women and men complete medical school in significantly different a
Rudiy27

Answer:

Following are the responses to the given question:

Step-by-step explanation:

Null \ H_{yp}: \mu_{men} = \mu_{women}\\\\Alt \ Hyp: \mu_{men} \neq \mu_{women}\\\\Std\  Error\ (SE) = \sqrt{(\frac{s_1^2}{n_1}) + (\frac{s_2^2}{n_2})} \\\\

                          = \sqrt{(\frac{0.62}{90}) + (\frac{0.52}{100})} \\\\= 0.08

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Degrees of freedom

= \frac{(\frac{s_1^2}{n_1} + \frac{s_2^2}{n_2})^2}{\frac{(\frac{s_1^2}{n_1})^2}{(n_1 - 1)}} + \frac{(\frac{s_2^2}{n_2)^2}}{(n_2 - 1)}  \\\\= 174

Considering a degree of 5% importance

T for df critical value = 174 and sig level = 0.05 is +1.973

Let area of refusal shall be  t < -1.973 or t > +1.973

Because statistical tests weren't in the refusal zone, they may not deny that zero but find that perhaps the argument how both women and men undergo med school is considerably different lengths of time is not significantly supported.

6 0
2 years ago
What is the missing number​
adelina 88 [10]

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Step-by-step explanation:

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3 years ago
The function can be used to find the volume of air inside a basketball given its radius. What does V(r) represent?
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8 0
3 years ago
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3 years ago
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