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90. A sales manager for an advertising agency believes that there is a relationship between the number of contacts that a sales person makes and the...

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the 95% confidence interval for 30 call is?

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EH1 A sales manager for an advertising agents}.F believes that there is a relatibnshjp between the
number (if mutants that a sales persan makes and the arnaunt bf the sales dollars earned. A regressibn analysis shows the faflawing results Standard
Grief tenants Ermr I Sm! P—mfius [nturcc 1 42.2131 6.5450 —l.EfiD (111]!) Number of
Contacts 2.1.95 11.1?6 12.5EI'5 Ctflflfl

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