Mathematics, 28.01.2020 02:31 baileyrw
An environmental organization releases a study reporting that the cities with the worst traffic jams have the worst air pollution.
which statement describes the best conclusion to draw from the study?
a. there may be a link between traffic jams and a city's air quality.
b. cities with good air quality do not have traffic jams.
c. avoiding traffic jams can improve air quality.
d. being stuck in traffic causes air pollution.
Answers: 2
Mathematics, 21.06.2019 18:20
Do social recommendations increase ad effectiveness? a study of online video viewers compared viewers who arrived at an advertising video for a particular brand by following a social media recommendation link to viewers who arrived at the same video by web browsing. data were collected on whether the viewer could correctly recall the brand being advertised after seeing the video. the results are given below.correctly recalled the brandarrival 409153browsing20484b. conduct the hypothesis test, using the 0.025 level of significance.what is the value of the test statistic? χ2stat=what is the p-value? p-value=is this value significant atα=0.025?
Answers: 2
Mathematics, 21.06.2019 21:30
Three people are traveling and need to exchange the currency of their native country for the currency of the country they are visiting. drag each exchange to the category that shows the ratio of currencies in that exchange.
Answers: 2
Mathematics, 21.06.2019 23:00
The coordinate grid shows a pentagon. the pentagon is translated 3 units to the right and 5 units up to create a new pentagon. what is the rule for the location of the new pentagon?
Answers: 3
An environmental organization releases a study reporting that the cities with the worst traffic jams...
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