1) Just how accurate are the weather forecasts we hear every? day? The table com
ID: 3052757 • Letter: 1
Question
1) Just how accurate are the weather forecasts we hear every? day? The table compares the daily forecast with a?city's actual weather for a year.??
On what percent of days did it actually? rain? ?(Round to one decimal place as? needed.)
Actual
Forecast
Rain
No Rain
Rain
28
66
No Rain
6
265
2) A study examined 631 people to see if there was an increased risk of contracting a certain infection associated with having a tattoo. If the subject had a? tattoo, researchers asked whether it had been done in a commercial tattoo parlor or elsewhere. Write a brief description of the association between tattooing and? infection, including an appropriate graphical display.
Tattoo Done in
Commercial Parlor
Tattoo Done
Elsewhere
No Tattoo
Infected
104
108
102
Not Infected
107
101
109
A ___________(1) percent contingency table best shows if there is an association between tattooing and infection. Since the percents are ___________(2), the study ___________(3), evidence of an association.
Decide which word best fits the blank:
(1) column / total / row
(2) different / about the same
(3) provides/ does not provide
1) Just how accurate are the weather forecasts we hear every? day? The table compares the daily forecast with a?city's actual weather for a year.??
On what percent of days did it actually? rain? ?(Round to one decimal place as? needed.)
Actual
Forecast
Rain
No Rain
Rain
28
66
No Rain
6
265
Explanation / Answer
A column percent contingency table best shows if there is an association between tattooing and infection. Since the percents are about the same the study does not provide evidence of an association.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.