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Solnce55 [7]
3 years ago
12

Write down 6 numbers that have a median of 8, a mean of 9 and a range of 13

Mathematics
1 answer:
spayn [35]3 years ago
5 0

Answer:

ummm i tried but.....

Step-by-step explanation:

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A professor would like to test the hypothesis that the average number of minutes that a student needs to complete a statistics e
professor190 [17]

Answer:

\chi^2 =\frac{15-1}{25} 16 =8.96

The degrees of freedom are given by:

df = n-1 = 15-1=14

The p value for this case would be given by:

p_v =P(\chi^2

Since the p value is higher than the significance level we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true deviation is not ignificantly lower than 5 minutes

Step-by-step explanation:

Information given

n=15 represent the sample size

\alpha=0.05 represent the confidence level  

s^2 =16 represent the sample variance

\sigma^2_0 =25 represent the value that we want to  verify

System of hypothesis

We want to test if the true deviation for this case is lesss than 5minutes, so the system of hypothesis would be:

Null Hypothesis: \sigma^2 \geq 25

Alternative hypothesis: \sigma^2

The statistic is given by:

\chi^2 =\frac{n-1}{\sigma^2_0} s^2

And replacing we got:

\chi^2 =\frac{15-1}{25} 16 =8.96

The degrees of freedom are given by:

df = n-1 = 15-1=14

The p value for this case would be given by:

p_v =P(\chi^2

Since the p value is higher than the significance level we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true deviation is not ignificantly lower than 5 minutes

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How do I draw a bar diagram to represent 6 times more than $4
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Here is an example of how to do this.. sense $4 x 6 just continue the graph i have already started 

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Which is a unit rate?
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Complete the solution of the equation. Find the value of y when x equals 4. -7x + y = -22
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-7x + y = -22

-7*4 + y = -22

y = -22 + 28

y = 6

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3 years ago
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