A randomly selected package from a competing company producing mixed nuts provides the information shown in Exhibit 12.43.
Is there evidence of a difference in the proportion of types of nuts for the two companies? Use α = 5%.
Answer to relevant Questions24. Based on the sample evidence in Exhibits 12.42 and 12.43 in Exercises 21 and 23, is there evidence of a difference in the proportions of peanuts in the mixed-nuts packages of the two companies? Use α = 5%. A random sample of new members of a large downtown fitness club was selected, and tracked over six months. Of the 60 members who joined the club to participate in fitness classes, 38 were still working out regularly six ...If appropriate, test to see whether there is evidence of a positive relationship between monthly income and monthly spending on restaurant meals for the data collected for households in Vancouver. Use α = 0.04. If appropriate, create a 95% prediction interval for the amount of monthly spending on restaurant meals, based on a monthly income of $6,000. Check the requirements for regression for the data set of the TSX and the DJI described in Exercise 8.Is this data set a random sample?
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