le) Wite the cdaim mathematicaly and idenily Ho and H,b) Find the critical value
ID: 2908313 • Letter: L
Question
le) Wite the cdaim mathematicaly and idenily Ho and H,b) Find the critical valueto) and identify the rejection region(o) (e)Find the standardized ost statatie ) Decide whether to reject or fail to reject the null hypothesis. An environmental agency recent y da med more han 25% of consumers have stopped bu ng a certain product because o environmental concerns. In a random sample of 1050 consumers, you find 30% have stopped buying the product. At . 0.01, do you have enough evidence to support the daim? a) Which of the folowing correctly states Ho and H,? A. HO:p2025 Ha: p025 Ha: p50.25 O B. Ho: P-0.25 Ha: p 0.25 E. Ho: p 0.25 Ha: p>0.25 (Use a comma to separate answers as needed. Round to two decimal places as tor Click to select ols g-- ec"?" t..?. ào @ w?.. Or P. ? MacBook Pro g0 00d 4 19 F2 F3Explanation / Answer
Answer to the question is as follows. Please see the answer and the formula. Here' the answer to the question with full concept. Please don't hesitate to give a "thumbs up" in case you're satisfied with the answer
(a) the claim goes to alternate hypothesis i.e. p>.25
The null hypothesis is Ho: p<=.25
C is right
(b) zo = (p-p0)/sqrt(p0*p0'/n) = (.25-.30)/sqrt(.3*.7/1050) = -3.54
The p(zo<-3.54) = .0002, which is less than alpha = .01, We therefore reject null hypothesis and conclude claim is correct 'OR' more than 25% of consumers have stopped buying a cetain product because of environment concerns.
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