Mathematics, 08.04.2020 02:10, trinityhayes347
The marketing firm in problem 1 has decided that age may also have an affect on attention span. They decide to assign the children to groups of fifteen 9 to 10 year olds, fifteen 7 to 8 year olds, and fifteen 5 to 6 year olds. Within each group, the children are asked to watch one 60-second commercial for one of the three types of toys and their attention spans are measured in seconds.
a. Is this an experiment or an observational study?
b. If it is an experiment, is it randomized or block design?
c. If it is an experiment, identify the explanatory and response variables.
d. If this is an experiment, draw a diagram representing the levels and treatments.
Answers: 3
Mathematics, 21.06.2019 21:30, jerenasmith77
Are the corresponding angles congruent? explain why or why not.
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Mathematics, 21.06.2019 22:00, sebcbal
The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score
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Mathematics, 22.06.2019 02:00, arrazolokhaliapb8sc2
Ethan is proving that the slope between any two points on a straight line is the same. he has already proved that triangles 1 and 2 are similar. drag statements and reasons to complete the proof.
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The marketing firm in problem 1 has decided that age may also have an affect on attention span. They...
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