00:00 Blanka Brikho: Attempt 1
A study is being conducted on whether natural lighting improves test scores. The
new room has natural sunlight, while the old has no windows and fluorescent lights.
Use a .05 level of significance to test the claim that scores are higher in the new
testing area.
3
student
6
new
old
1
90
87
9
2
85
80
3
93
93
12
4.
74
76
5
81
80
15
6
76
65
7
90
79
8
95
95
9
100
98
10
76
70
11
67
69
12
88
92
13
79
70
14 80 66 15 93 90

Questions 9-10. use the table of educational expenditures to answer the questions. k-12 education expenditures population indiana $9.97 billion 6.6 million illinois $28.54 billion 12.9 million kentucky $6.58 billion 4.4 million michigan $16.85 billion 9.9 million ohio $20.23 billion 11.6million 9. if the amount of k-12 education expenses in indiana were proportional to those in ohio, what would have been the expected value of k-12 expenditures in indiana? (give the answer in billions rounded to the nearest hundredth) 10. use the value of k-12 education expenditures in michigan as a proportion of the population in michigan to estimate what the value of k-12 education expenses would be in illinois. a) find the expected value of k-12 expenditures in illinois if illinois were proportional to michigan. (give the answer in billions rounded to the nearest hundredth) b) how does this compare to the actual value for k-12 expenditures in illinois? (lower, higher, same? )