this is a chi square test
0.5 level of signifcance
what is the Critical Range number when comparing 18-34 group with 35-64 group?
what is the Critical Range number when comparing 18-34 group with 65+ group?
what is the Critical Range number when comparing 65+ group with 35-64 group?
what is the proportion difference number when comparing 18-34 group with 35-64 group?
what is the conclusion when comparing 18-34 group with 35-64 group?
Homework Answers
degree of freedom for chi square test = (row-1)(column-1) = (2-1)(3-1) = 2
α=0.05
criitcal value (0.05,2) = 5.9915 [from chi square table ]
critical range= √critical value * √ (pi*qi/ni + pj*qj/nj )
| Sample Proportions | |
| Group 1 (18-34) | 0.59 |
| Group 2 (35-64) | 0.36 |
| Group 3 (65+) | 0.13 |
Critical Range number when comparing 18-34 group with 35-64 group = √5.9915 * √ (0.59*0.41/200 + 0.36*0.64/200) = 0.1189
Critical Range number when comparing 18-34 group with 65+ group = √5.9915 * √(0.59*0.41/200 + 0.13*0.87/200) =0.1031
Critical Range number when comparing 65+ group with 35-64 group = √5.9915 * √(0.36*0.64/200 + 0.13*0.87/200) = 0.1014
proportion difference number when comparing 18-34 group with 35-64 group = 0.59-0.36 = 0.23
conclusion when comparing 18-34 group with 35-64 group---------------
absolute difference of proportion = 0.23 > critical range=0.1189 , difference of proportion is significant.
Add Answer to:
This is a chi square test 0.5 level of signifcance what is the Critical Range number when compari...
0.5 level of signifcance what is the Critical Range number when comparing 18-34 group with 35-64 ...
0.5 level of signifcance
what is the Critical Range number when comparing 18-34 group
with 35-64 group?
what is the Critical Range number when comparing 18-34 group
with 65+ group?
what is the Critical Range number when comparing 65+ group with
35-64 group?
what is the proportion difference number when comparing 18-34
group with 35-64 group?
what is the conclusion when comparing 18-34 group with 35-64
group?
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0.5 level of signifcance
what is the Critical Range number when comparing 18-34 group
with 35-64 group?
what is the Critical Range number when comparing 18-34 group
with 65+ group?
what is the Critical Range number when comparing 65+ group with
35-64 group?
what is the proportion difference number when comparing 18-34
group with 35-64 group?
what is the conclusion when comparing 18-34 group with 35-64
group?
Phone to Access social media YES NO 18-34 59% 41% AGE 35-64 36%...
Question:
The number of users that check social media daily is the same
for '35 to 44' and '45-54' age groups. If there are 41 million '35
- 44' year olds in North America, how many '45-54' year olds are
there to the nearest million?
i Social media habits by continent 87% 89% 90% 80% 65% 70% 73% 62% 63% 56% 60% 40% 28% 31% 35%. 20% 16% 18% 12% 0% Have a social media account Checks social media daily...
II. Using the spreadsheet provided, please answer each question. You must show work for the problems where this is indicated. Round all answers to the nearest hundredth where necessary. 5. Name two categories that have qualitative data. 6. Name two categories that have quantitative data that is discrete, 7. Name two categories that have quantitative data that is continuous. 8. Build a frequency chart for the category “Major". 9. Build a relative frequency chart for the category “Number of Siblings"....
The following data represents the number of consecutive minutes (to the nearest minute) 2. spent on mobile phones by students attending the University of A. 23 2 26 40 22 52 28 40 19 55 50 52 51 46 51 60 59 45 26 2 48 1 34 10 18 45 29 41 11 43 50 32 37 15 57 17 57 35 50 45 7 22 15 13 20 13 15 32 13 39 25 38 31 16 7...
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