Question 1(CO6) From a random sample of 68 businesses, it is found that the mean time that employees spend on personal issues each week is 4.9 hours with a standard deviation of 0.35 hours. What is the 95% confidence interval for the amount of time spent on personal issues? A)(4.71, 5.09) B)(4.83, 4.97) C)(4.55, 5.25) […]
Question 6(CO6) What is the 97% confidence interval for a sample of 104 soda cans that have a mean amount of 15.10 ounces and a standard deviation of 0.08 ounces? A)(15.940, 15.260) B)(15.083, 15.117) C)(12.033, 12.067) D)(15.020, 15.180) Question 7 (CO6) Determine the minimum sample size required when you want to be 98% confident that […]
Question 11 In a sample of 15 stuffed animals, you find that they weigh an average of 8.56 ounces with a standard deviation of 0.09 ounces. Find the 92% confidence interval. A)(8.528, 8.591) B)(8.516, 8.604) C)(8.526, 8.594) D)(8.510, 8.610) Question 12 Market research indicates that a new product has the potential to make the company […]
Question 16(CO7) A company claims that its heaters last at most 5 years. Write the null and alternative hypotheses and note which is the claim. A)Ho: μ ≤ 5 (claim), Ha: μ > 5 B)Ho: μ = 5 (claim), Ha: μ ≥ 5 C)Ho: μ > 5 (claim), Ha: μ ≤ 5 D)Ho: μ ≤ […]
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