A t\alpha=0.05$, test the claim that the mean salary is$22,300. T h e ann u a lp a y f or a r an d o m s am pl eo f 10 f u ll − t im e ma l e w or k ers w i t h o u t ahi g h sc h oo l d i pl o mai s l i s t e d. The annual pay for a random sample of 10 full-time male workers without a high school diploma is listed. The 11 predictor variables were standardized to have mean 0 and variance 1, after which logistic regression analysis was carried out. T h e a n n u a l p a y f o r a r a n d o m s a m p l e o f 10 f u l l − t i m e m a l e w o r k e r s w i t h o u t a h i g h s c h o o l d i p l o m a i s l i s t e d. (e) interpret the decision in the context of the original claim.Īssume the population is normally distributed.Īnnual Pay An employment information service claims the mean annual pay for full-time male workers over age 25 and without a high school diploma is 22, 300. (d) decide whether to reject or fail to reject the null hypothesis. ![]() (c) find the standardized test statistic. ![]() (b) find the critical value(s) and identify the rejection region(s). ![]() (a) write the claim mathematically and identify H 0 H_0 H 0 and H a H_a H a . (a) Standardize the X j X_j X j by letting r.v.s with mean μ \mu μ, variance σ 2 \sigma^2 σ 2, and skewness γ \gamma γ.
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