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Digiron [165]
3 years ago
8

Neilson Company publishes data on the typical American and his television viewing habits. Fifteen adults filled out questionnair

es regarding their television viewing habits and the amount of time that they spend watching television each week. The sample resulted in the following data (amount of time is described in hours):
5 7 11 30 18 21 22 28 26 25 24 15 31 31 3
Twelve children filled out questionnaires regarding their television viewing habits and the amount of time that they spend watching television each week. The sample resulted in the following data (amount of time is described in hours):

8 12 12 26 30 22 16 27 28 27 30 26
Construct a box and whisker plot for the adults' reported data. Construct a second box and whisker plot for the children's reported data. Compute the interquartile ranges for each of the sample data sets. Using complete sentences, compare the interquartile ranges of the two groups.
Mathematics
1 answer:
boyakko [2]3 years ago
4 0
Do you still need help?!?!
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Please answer correctly !!!!!!!! Will mark brianliest !!!!!!!!!!!
nexus9112 [7]

Answer:

x=6

Step-by-step explanation:

h(x) = -( x-2)^2 +16

We want when h(x) = 0

0 = -( x-2)^2 +16

Subtract 16 from each side

-16  = -( x-2)^2 +16-16

-16 = -( x-2)^2

Divide by -1

16= ( x-2)^2

Take the square root of each side

±sqrt(16) = sqrt(( x-2)^2 )

±4 = x-2

Add 2 to each sdie

2 ±4 = x-2+2

2+4 = x     2-4 =x

6 =x           -2 =x

since time cannot be negative

x=6

4 0
3 years ago
- Find the difference of 8x and twice the sum<br>of x and 7. Write your answer in simplest<br>form.​
9966 [12]

Answer:

7*2=14 8x=8*8=64*2

Step-by-step explanation:

Thats how you basically do it now try it!

5 0
3 years ago
] It is claimed that 42% of US college graduates had a mentor in college. For a sample of college graduates in Colorado, it was
Bad White [126]

Answer:

z=\frac{0.480 -0.42}{\sqrt{\frac{0.42(1-0.42)}{1045}}}=3.930  

The p value for this case would be given by:

p_v =P(z>3.930)=0.0000443  

For this case the p value is lower than the significance level so then we have enough evidence to reject the null hypothesis so then we can conclude that the true proportion is significantly higher than 0.42

Step-by-step explanation:

Information given

n=1045 represent the random sample selected

X=502 represent the college graduates with a mentor

\hat p=\frac{502}{1045}=0.480 estimated proportion of college graduates with a mentor

p_o=0.42 is the value that we want to test

z would represent the statistic

p_v represent the p value

Hypothesis to test

We want to test if the true proportion is higher than 0.42, the system of hypothesis are.:  

Null hypothesis:p \leq 0.42  

Alternative hypothesis:p > 0.42  

The statistic is given by:

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

Replacing the info we got:

z=\frac{0.480 -0.42}{\sqrt{\frac{0.42(1-0.42)}{1045}}}=3.930  

The p value for this case would be given by:

p_v =P(z>3.930)=0.0000443  

For this case the p value is lower than the significance level so then we have enough evidence to reject the null hypothesis so then we can conclude that the true proportion is significantly higher than 0.42

7 0
3 years ago
Tell whether each proportion is true or false and prove your answer.
Arte-miy333 [17]

Answer:

the proportion is false

Step-by-step explanation:

5.5/7.5 = 11/15

3.5/7= 1/2

6 0
3 years ago
The sum of a number w and 3 is less than or equal to ten.
Assoli18 [71]
W + 3 ≤ 10

This is the symbol for less than or equal ≤

w + 3 ≤ 10

w ≤ 10 - 3

w ≤ 7

Can't find an answer for w from the options. 
7 0
3 years ago
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