anonymous
  • anonymous
HELLO LOOKING FOR HELP CAN SOMEONE BE KIND AND HELP ME The table below shows the number of hours some business people in two states spend in meetings each week State A 21 23 24 22 24 25 23 23 22 State B 24 22 20 23 23 50 20 46 21 Create a five-number summary and calculate the interquartile range for the two sets of data.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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jim_thompson5910
  • jim_thompson5910
when you list these numbers 21 23 24 22 24 25 23 23 22 from smallest to biggest, what do you get?
anonymous
  • anonymous
21 22 22 23 23 2324 24 25
jim_thompson5910
  • jim_thompson5910
what is the middle most number of this list 21, 22, 22, 23, 23, 23, 24, 24, 25

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More answers

anonymous
  • anonymous
23
jim_thompson5910
  • jim_thompson5910
yes
jim_thompson5910
  • jim_thompson5910
that is the median
jim_thompson5910
  • jim_thompson5910
|dw:1435887271784:dw|
jim_thompson5910
  • jim_thompson5910
focus on the smaller half of the data |dw:1435887285192:dw|
jim_thompson5910
  • jim_thompson5910
what is the median of 21,22,22,23 ?
anonymous
  • anonymous
22
jim_thompson5910
  • jim_thompson5910
that is the value of Q1
jim_thompson5910
  • jim_thompson5910
|dw:1435887536770:dw|
anonymous
  • anonymous
24
jim_thompson5910
  • jim_thompson5910
that's Q3
jim_thompson5910
  • jim_thompson5910
and finally, the min and max are just as you expect: the smallest and largest values |dw:1435887601476:dw|
jim_thompson5910
  • jim_thompson5910
five number summary: min = 21 Q1 = 22 median = 23 Q3 = 24 max = 25
anonymous
  • anonymous
that's for the first one or that's all I need
jim_thompson5910
  • jim_thompson5910
one more thing you need the IQR
jim_thompson5910
  • jim_thompson5910
IQR = Q3 - Q1
jim_thompson5910
  • jim_thompson5910
IQR stands for interquartile range
anonymous
  • anonymous
=2
jim_thompson5910
  • jim_thompson5910
yes
anonymous
  • anonymous
so what would I write for my answer
jim_thompson5910
  • jim_thompson5910
I wrote the answer above more or less. Re-read what I posted
anonymous
  • anonymous
it says for both sets can u help me with the second one
jim_thompson5910
  • jim_thompson5910
you follow the same steps. Give it a shot and tell me what you get
anonymous
  • anonymous
min = 20 Q1 = median = 23 Q3 = max = 50
jim_thompson5910
  • jim_thompson5910
so far so good
jim_thompson5910
  • jim_thompson5910
look at the list of values smaller than the median find the median of this list to get Q1
anonymous
  • anonymous
idk can you help
jim_thompson5910
  • jim_thompson5910
did you sort the values?
anonymous
  • anonymous
yes
jim_thompson5910
  • jim_thompson5910
which values are less than the median?
anonymous
  • anonymous
20 21 22
jim_thompson5910
  • jim_thompson5910
so you look at the lower half 20,20,21,22 find the median of this lower half
jim_thompson5910
  • jim_thompson5910
just like we did in the last problem
anonymous
  • anonymous
20 21
jim_thompson5910
  • jim_thompson5910
add them up and divide by 2
anonymous
  • anonymous
20.5
jim_thompson5910
  • jim_thompson5910
that's Q1
jim_thompson5910
  • jim_thompson5910
do you know how to find Q3 ?
anonymous
  • anonymous
no
jim_thompson5910
  • jim_thompson5910
find the median of the upper half of the data
anonymous
  • anonymous
I need help
jim_thompson5910
  • jim_thompson5910
find the median of all the numbers to the right of the median (look at the sorted data)
jim_thompson5910
  • jim_thompson5910
sort the data look at all of the values to the right of the median find the median of this smaller data set to get Q3
anonymous
  • anonymous
24 46
jim_thompson5910
  • jim_thompson5910
add those two values up and divide by 2
anonymous
  • anonymous
35
jim_thompson5910
  • jim_thompson5910
that is Q3
jim_thompson5910
  • jim_thompson5910
now just compute the IQR
anonymous
  • anonymous
-14.5
jim_thompson5910
  • jim_thompson5910
IQR = Q3 - Q1
jim_thompson5910
  • jim_thompson5910
Q1 = 20.5 Q3 = 35 IQR = Q3 - Q1 = ??
anonymous
  • anonymous
-14.5
jim_thompson5910
  • jim_thompson5910
no you subtracted in the wrong order
jim_thompson5910
  • jim_thompson5910
you should do 35 - 20.5
anonymous
  • anonymous
14.5
jim_thompson5910
  • jim_thompson5910
good
anonymous
  • anonymous
ok when u write everything out
anonymous
  • anonymous
Are the box plots symmetric

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