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3 years ago

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First question- Mean of: 95, 18, 51, 1, 22, 5

2 answers:

BlackZzzverrR [31]3 years ago

8 0

To find the mean, add up the numbers and divide the answer by the number of numbers you added up.

1) 95 + 18 + 51 + 1 + 22 + 5 = 192
192 / 6 = 32
The mean of the numbers is 32.

2) 67 + 103 + 94 + 65 + 18 + 114 + 94 + 63 + 94 + 27 = 739
739 / 10 = 73.9
The mean of the numbers is 73.9.

To find the median, line up all the numbers from least to greatest. Then see which number is in the middle. If there are two numbers in the middle, find the mean of the two numbers.

18, 27, 63, 65, 67, 94, 94, 94, 103, 114
67 and 94 are in the middle. The mean of 67 and 94 is 80.5.
The median is 80.5.

kati45 [8]3 years ago

7 0

The mean is 32
The median is 67

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Could i get an explanation on how to do this?

irina [24]

Answer:

EH is 25

Step-by-step explanation:

7+7+11=25

EH is 25

8 0

3 years ago

Suppose that we are testing H0 : 0 versus H1 : 0 with a sample size of n 10. Calculate bounds on the P-value for the following o

stepan [7]

Answer:

a) $p_V = 2*P(t_{9} >|2.48|) =0.0349$

We can use the following excel code: "=2*(1-T.DIST(2.48,9,TRUE))"

$0.03 < p_v$

b) $p_V = 2*P(t_{9} >|-3.95|)=0.003355$

We can use the following excel code: "=2*(1-T.DIST(3.95,9,TRUE))"

$p_v$

c) $p_V = 2*P(t_{9} >|2.69|) =0.02480$

We can use the following excel code: "=2*(1-T.DIST(2.69,9,TRUE))"

$0.01 < p_v$

d) $p_V = 2*P(t_{9} >|1.88|) =0.09281$

We can use the following excel code: "=2*(1-T.DIST(1.88,9,TRUE))"

$0.05 < p_v$

Step-by-step explanation:

For this case we are testing the following system of hypothesis:

Null hypothesis: $\mu =0$

Alternative hypothesis: $\mu \neq 0$

The sample size is n=10, so then the degrees of freedom are given by:

$df=n-1= 10-1=9$

In order to calculate the p value we can use the fact that we are conducting a bilateral test so then the p value is given by:

$p_V = 2*P(t_{9} >|t_0|)$

Where $t_0$ represent the calculated or observed statistic.

a) t0= 2.48

$p_V = 2*P(t_{9} >|2.48|) =0.0349$

We can use the following excel code: "=2*(1-T.DIST(2.48,9,TRUE))"

$0.03 < p_v$

b) t0= -3.95

$p_V = 2*P(t_{9} >|-3.95|)=0.003355$

We can use the following excel code: "=2*(1-T.DIST(3.95,9,TRUE))"

$p_v$

c) t0=2.69

$p_V = 2*P(t_{9} >|2.69|) =0.02480$

We can use the following excel code: "=2*(1-T.DIST(2.69,9,TRUE))"

$0.01 < p_v$

d) t0=1.88

$p_V = 2*P(t_{9} >|1.88|) =0.09281$

We can use the following excel code: "=2*(1-T.DIST(1.88,9,TRUE))"

$0.05 < p_v$

6 0

3 years ago

Calculate the average rate of change of the function f(x) = 3x2 over the interval 1 ≤ x ≤ 5.

rewona [7]

Average rate of change is delta y / delta x

(f(5)-f(1))/(5-1)

(75-3)/4

72/4

18

8 0

3 years ago

A downtown building is 880 feet tall. Ana makes a scale model of the building at 1:440 of its actual size how tall is the model?

Olenka [21]

Answer:

2 feet

Step-by-step explanation:

880/440 = 2

7 0

3 years ago

P l e a s e h e l p <br> (Only spaced it cus I needed 20 characters, danke)

GenaCL600 [577]

Answer:

y = 63

Step-by-step explanation:

A straight line is equal to 180 degrees.

180 = 2y - 18 + y + 9

180 = 3y -9

189 = 3y

189/3

y = 63

3 0

3 years ago

Read 2 more answers