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tamaranim1 [39]
3 years ago
6

Can someone help me? you might get a crown

Mathematics
1 answer:
Step2247 [10]3 years ago
7 0

Answer:

2.1 mph

Step-by-step explanation:

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Researchers examined the bill color (in hue degree) of male and female zebra finches. Here are the summary statistics from the s
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Answer:

The answer to this question can be defined as follows:

Step-by-step explanation:

In the question some iformation is missing, which can be defined as follows:

Given:

The value of males:

n_1= 59\\s_1= 1.46\\\bar y_1=2.91\\

The value of Females:

n_2=60\\s_2= 2.48\\\bar y_2=7.42\\

Calculating Degrees of Freedom:

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

    =\frac{(\frac{1.46^2}{59}+\frac{2,48^2}{60})^2}{ \frac{1}{59-1} (\frac{1.46^2}{59})^2+\frac{1}{60-1} (\frac{2.48^2}{60})^2}\\

    =9.58 or 95

\alpha= 1-0.95\\\\

   = 0.05

for 95% confidence interval are:

\frac{\alpha}{2} = \frac{0.05}{2} = 0.025  

From its t-distribution table , the value of t has an region of (\frac{\alpha}{2} \ \ 0.025) for (df=95) in its upper tail.

shall be given by = t {0.025}=1.985

Calculating the margin of Error:

M_OE =t_{0.025} \times \sqrt{\frac{s_1^2}{n_1}+\frac{s_2^2}{n_2}}

         =1.985\times \sqrt{\frac{1.46^2}{59}+\frac{2.48^2}{60}}\\\\=0.739

The difference in mean bill color "\mu_2 -\mu_1" with 95% confidence intervals:

\to (7.42 - 2.91) \pm 0.739\\\\\to 4.51 \pm 0.739

Lower limit=3.771

Upper limit = 5.249

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3 years ago
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kirza4 [7]
1000 is the missing exponent
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Pls help ASAP In the triangle below, what is the measure of AngleZ?
Andrei [34K]

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50 degrees is the answer

3 0
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What is my mystery number???
mars1129 [50]

Answer:

25

Step-by-step explanation:

25 has 2 digits

25 is less than 30

25 is odd

2+5 = 7

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3 years ago
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Simplify the following expression, 4.2x+4.7=18.6
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Answer:

Step-by-step explanation:

4.2x+4.7=18.6

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Collecting like terms

42x = 186 - 47

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x = 139/42

x = 3 13/42 or 3.3

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3 years ago
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