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1. (Revision of Exercise 7.3 on p.257) An random sample is selected from an approximately normal population with an unknown standard deviation. For each the

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1. (Revision of Exercise 7.3 on p.257) An random sample is selected from an approximately normal population with an unknown standard deviation. For each the given set of hypotheses, sample size and the Tstatistic, nd the pvalue, draw a tcurve and shade the region of which the area the pvalue indicates. As it's not possible to nd the precise P-values using a t-table, it sufces to give a range. (a) HA: ,u.>0.5,n=26,T=2.6 (b) HA:,u,70.5,n=26,T=2.6 (c) HAzp,

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