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preety5445
preety5445
27.06.2019 • 
Mathematics

Of its tortilla chips is1.21. a dietician is asked to test this claim and finds that a random sample of 19 servings has a variance of 1.05. at α=0.10, is there enough evidence to reject the manufacturer's claim? assume the population is normally distributed. complete parts (a) through (e) below.(a) write the claim mathematically and identify h0 and ha.a.h0: σ2 ≥1.21ha: σ2 < 1.21 (claim)b.h0: σ2 ≠1.21ha: σ2 =1.21 (claim)c. h0: σ2 =1.21 (claim)ha: σ2 ≠1.21d. h0: σ2 ≤1.21 (claim) ha: σ2 > 1.21(b) find the critical value(s) and identify the rejection region(s).the critical value(s) is(are) (round to three decimal places as needed. use a comma to separate answers as needed.)choose the correct statement below and fill in the corresponding answer boxes.a. the rejection region is χ2 < . the rejection region is χ2 > . the rejection regions are χ2< χ2greater than> (c) find the standardized test statisticχ(round to three decimal places as needed.)(d) decide whether to reject or fail to reject the null hypothesis, and (e) interpret the decision in the context of the original claim. fill in the correct answers below.a-fail to rejectb- rejecth0.therea- is notb-isenough evidence to at the 10% level of significance to reject the manufacturer's claim that the variance of the number of grams of carbohydrates in servings of its tortilla chips is 1.21.

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