cl 3_set 1
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!. () Exercise 7- No 7-!7-!. ?*" pipe is mnu%ctured &ith men dimeter o% .565 nd stndrd deition
o% /.//cm. ind the pro##i$ity tht rndom smp$e o% n B 9 sections o% pipe &i$$ he
smp$e en dimeter greter thn .56/cm nd $ess thn .57/cm.
(#) Exercise 7- No 7-57-5. synthetic C#er used in mnu%cturing crpet hs tensi$e strength tht is norm$$y
distri#uted &ith men 5/:Nm nd stndrd deition 5:Nm. ind the pro##i$ity
tht rndom smp$e o% n B 6 C#er specimens &i$$ he smp$e men tensi$e strength
tht exceeds 55:Nm.
4. () Exercise -1 No -1.-1.An rtic$e in the
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(c) 2uppose tht you &nted to #e 95O conCdent tht the error in estimting the
men temperture is $ess thn degrees "e$sius. ht smp$e siHe shou$d #e
used+(d) 2uppose tht you &nted the tot$ &idth o% the t&o-sided conCdence inter$
on men temperture to #e 1.5 degrees "e$sius t 95O conCdence. ht smp$e
siHe shou$d #e used+
5. (A) 2upp$ement$ Exercise No -6 (#cde)-9.An rtic$e in the
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