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Weekly Assignment on Chapter 8 and 9 1. The makers of a soft drink want to identify the average age of its consumers. A sample of 16 consumers is...

1.The makers of a soft drink want to identify the average age of its consumers. A sample of 16 consumers is taken. The average age in the sample was 22.5 years with a standard deviation of 5 years. Assume the population of consumer ages is normally distributed.

a. Using the confidence interval method, test the claim that the average age of consumers is at least 30 years ( α= 0.05).
b. Test the same claim by using the test statistics method ( Z or T test).
c. Test the same claim by using the P-Value method ( Z or T test).

Weekly Assignment on Chapter 8 and 9 1. The makers of a soft drink want to identify the average age of its consumers. A sample of 16 consumers is taken. The average age in the sample was 22.5 years with a standard deviation of 5 years. Assume the population of consumer ages is normally distributed. Chapter 8- Confidence Interval: Construct a 95% confidence interval for the average age of all the consumers. Interpret the margin of error and interpret the confidence interval. From last week: I am 95% sure that the Average age of All customers is between 19.84 to 25.16. Interpret the margin of error and interpret the confidence interval. Show every step and interpret your findings in details. I am 95% sure that the my sample Average( X-Bar= 22.5) differs from the average age of All customers by no more than 2.66 years. Chapter 9- Test of Significance: a. Using the confidence interval method , test the claim that the average age of consumers is at least 30 years ( α= 0.05). Show every step and interpret your findings in details.
b. Test the same claim by using the test statistics method ( Z or T test). Show every step and interpret your findings in details. c. Test the same claim by using the P-Value method ( Z or T test). Show every step and interpret your findings in details.
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1. The makers of a soft drink want to identify the average age of its consumers. A sample
of 16 consumers is taken. The average age in the sample was 22.5 years with a standard
deviation of 5...

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