all of these pls D) In repeated sampling, 95% of the sample means will fall within the interval created. 4) A retired statistician was interested in determising the average cost of a $200,000.00 t...
D) In repeated sampling, 95% of the sample means will fall within the interval created. 4) A retired statistician was interested in determising the average cost of a $200,000.00 term lle insurance policy for a 60-year-old male non-smoker. He randomly sampled 63 subjects (60-year-old male non-smokers) and constructed the following 95 percent c mean cost of the term life insurance: ($850.00, $1050.00) State the appeopriate confidence interval for the interpretation for this term life insurance cost of the retired statistician's insurance policy falls between $850.00 and confidence interval. Note that all answers begin with "We are 95 percent A) The $1050.00 The average term life insurance .cost for sampled 65 subjects falls between $850.00 and $1050.00 C) The term life insurance cost for all 60-year-old male non-smokers insurance policies falls between $850.00 and $1050.00 D) The average term life insurance costs for all 60-year-old male non-smokers falls betwern $850.00 and $1050.00 6. A revenue department is under orders to reduce the time small business owners spend filling out pension form ABC-5500. Previously the average time spent on the foem was 5.7 hours the time to fill out the form has been reduced, a sample of 86 small business owners w form was randomly chosen, and their completion times recorded. The mean form was 5.5 hours with a standard deviation of 2.3 hours. In order to test that the time to complete the form has been reduced, state the appropriate mull and alternative hypotheses A) Ho: H-5.7 5.7 hours. In onder to test whether completion time foe ABC-5500 C) Ho: u>57 #57 Ha: μ < 5.7 На: 7) How many tissues should a package of tissues contain? Researdhers have determined that a person uses an of 41 tissues during a cold. Suppose a random sample of 10,000 people yielded the following data on the number of tissues used during a cold: x -35, s 18 alternative hypothesis for a test to determine if the mean number of tissues used during a cold is less than 41 A) HO: μ > 41 vs. Ha: μ 41 C)H0ιμ-41 vs. Ha: μ < 41 Identify the rall and D)Ho: μ . 41 vs. Ha: μ > 41 9) A local eat-in pizza restaurant wants to investigate the possibility of starting to deliver pizzas The owner of the store has determined that home delivery will be successful only if the average time spent on a delivery does not exceed 37 minutes. The owner has randomly selected 15 customers and delivered pizzas to their homes What hypotheses should the owner test to demonstrate that the pizza delivery will not be successful? A) Ho: μ-T7 vs. Ha: μ < 37 B)Ho: μ < 37 vs. Ha: μ-37 D)Ho: μ-37 vs. Ha:p337 10) Researchers have claimed that the average number of headaches per student during a semester of Statistics is 11. Statistics students believe the average is higher. In a sample of n -16 students the mean is 12 headaches with a deviation of 2.4. Which of the following represent the null and alternative hypotheses necessary to tes the students' belief? A) Ho: μ-11 vs. Ha: μ > 11 C)H0: μ-37 vs. Ha: μ>37 D)HO, μ-11 vs. Ha: μ #11 C)Ho: μ < 11 vs. Ha: μ-11
D) In repeated sampling, 95% of the sample means will fall within the interval created. 4) A retired statistician was interested in determising the average cost of a $200,000.00 term lle insurance policy for a 60-year-old male non-smoker. He randomly sampled 63 subjects (60-year-old male non-smokers) and constructed the following 95 percent c mean cost of the term life insurance: ($850.00, $1050.00) State the appeopriate confidence interval for the interpretation for this term life insurance cost of the retired statistician's insurance policy falls between $850.00 and confidence interval. Note that all answers begin with "We are 95 percent A) The $1050.00 The average term life insurance .cost for sampled 65 subjects falls between $850.00 and $1050.00 C) The term life insurance cost for all 60-year-old male non-smokers insurance policies falls between $850.00 and $1050.00 D) The average term life insurance costs for all 60-year-old male non-smokers falls betwern $850.00 and $1050.00 6. A revenue department is under orders to reduce the time small business owners spend filling out pension form ABC-5500. Previously the average time spent on the foem was 5.7 hours the time to fill out the form has been reduced, a sample of 86 small business owners w form was randomly chosen, and their completion times recorded. The mean form was 5.5 hours with a standard deviation of 2.3 hours. In order to test that the time to complete the form has been reduced, state the appropriate mull and alternative hypotheses A) Ho: H-5.7 5.7 hours. In onder to test whether completion time foe ABC-5500 C) Ho: u>57 #57 Ha: μ 41 vs. Ha: μ 41 C)H0ιμ-41 vs. Ha: μ 41 9) A local eat-in pizza restaurant wants to investigate the possibility of starting to deliver pizzas The owner of the store has determined that home delivery will be successful only if the average time spent on a delivery does not exceed 37 minutes. The owner has randomly selected 15 customers and delivered pizzas to their homes What hypotheses should the owner test to demonstrate that the pizza delivery will not be successful? A) Ho: μ-T7 vs. Ha: μ 37 D)HO, μ-11 vs. Ha: μ #11 C)Ho: μ
