Refer to Exercise 16.9. The company has just hired a 22-year-old telemarketer. Predict with 95% confidence how long he will stay with the company.
Answer to relevant QuestionsRefer to Exercise 16.10. Predict with 95% confidence the number of sick days for individuals who smoke on average 40 cigarettes per day.Refer to Exercise 16.15. Predict the food budget of a family whose household income is $60,000. Use a 90% confidence level.Refer to Exercise 16.51. Annual income of someone who is 45 years old.Refer to Exercise 16.63. Number of years of education of a person whose father had 15 years of education.Refer to Exercise 16.7.a. Does it appear that the errors are normally distributed? Explain.b. Does it appear that heteroscedasticity is a problem? Explain.
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