1

18.R

esearchersarestudying

yieldofacrop

intwolocations.Theresearchersare

goingtocomputeindependent90%

confidence

intervalsforthemeanyieldateach

location.

Theprobabilitythatatleastone

oftheintervalsw

illcoverthe

truemean

yields

attheirlocationis

A).81

B).19

C).99

D).95

2

34

56

78

910

1112

1314

1516

1718

1920

2122

2324

2526