MATH 103 Week 14 Assignment

MATH 103 Week 14 Assignment | MiraCosta College

Chapter 14

1.Birds use color to select and avoid certain types of food.  Researchers studied the pecking behavior of 1-day old bobwhites.  In an area painted white, they inserted four pins with different colored heads.  The color of the pin chosen on the bird’s first peck was noted for each of 33 bobwhites, resulting in the accompanying table

lue 16

Green8

Yellow6

Red3

Do these data provide evidence of a color preference? Test using

Hypotheses:Method:Q:__________________S:__________________T:__________________N:__________________Check:Calculate:Communicate Results:

2.Are babies born to mothers who use assistive reproduction technology (ART) more likely to be born prematurely than babies conceivednaturally?  The data in the accompanying table are from a random sample of 19,614 births.  Each birth was classified according to whether the mother used ART and whether the baby was premature.  Use these data to decide if there is convincing evidence of an association between the use of ART and whether or not a baby ispremature.  Use𝛼=0.05

ConceivedUsing ARTConceivedNaturallyPremature154

2,405Not

Premature21218,

843

Hypotheses:Method:Q:__________________S:__________________T:__________________N:__________________Check:Calculate:Communicate Results: