the question are from ecn 221 Hypothesis Testing

Assignment - Unit #10B - Hypothesis Testing Questions Started: Apr 18 at 11:20pm Question 1 Quiz Instructions Question 2 Question 3 Complete this assignment covering Units #09 and #10. You have unlimited attempts and the highest grade achieved Question 4 will be recorded. Question 5 @ Question 6 IMPORTANT: For all questions where the answer is a probability, put your answer in percentage form (e.g. Question 7 72.4218 not 0.724218) and then round to four decimal places. You do not need to include a % sign. Time Elapsed: Hide Attempt due: Apt 27 at 11:59pm 0 Minutes, 36 Seconds D Question 1 2 pts de Use the following information to calculate the t-statistic X - 44.02 SX = 29.95 n = 33 urces Ho : M = 30 Round your answer to four decimal places. D Question 2 2 pts Use the following information to calculate the t-statistic. X = 48.29 Sx =21 1 = 39 Ho : H > 26 Round your answer to four decimal places. e ALIENWARE F3 F4 F5 F6 F7 F8 F9 F10 F12 MUTE T-PADD Question 3 2 pts After collecting a random sample of 101 individuals living in Arizona, you find that the average income is $67,886. Using this sample, you determine that the 95% confidence interval for the sample mean is (61,881; 73,891). Which of the following statements is correct? There is a 95% chance that the average income for the population of Arizona falls between $61,881 and $73,891. About 95% of the Arizona population have an income between $61,881 and $73 891 About 95% of the 100 people sampled have an income between $61,881 and $73,891. There is a 95% chance that our sample mean falls between $61,881 and $73,891 D Question 4 2 pts After collecting a random sample of 101 individuals living in Aaszona, you determine that the 95% confidence interval for the mean income is (58,656, 72, 119). What was the standard deviation of income for the sample? Hint: you'll need to find the critical value for t using a t-table a Round your answer to four decimal places. D Question 5 2 pts Suppose we gather the following sample X 48 31 26 28 12 39 28 M526b/quizzes/263656/take Bicycle Parking and.. New Tab Essential Guide to B... Q Chapter 13: Busines... Scene creati Question 5 2 pts Suppose we gather the following sample X 48 31 26 28 12 39 28 34 36 41 Using this sample, calculate the t-statistic for the hypothesis: /4 = 10.2. Round your answer to four decimal places. Question 6 2 pts Suppose we gather the following sample X 17 31 13 48 15 25D Question 6 2 pts Suppose we gather the following sample: X 17 31 13 48 15 25 35 25 27 45 Using this sample, calculate the upper bound for the 95% confidence interval. Hint: you'll need to find the critical value for t using a t-table v Round your answer to four decimal places. hs D Question 7 2 pts Suppose we gather the following sample X 48 17 37 28 16 10 28 16 26 22Using this sample, calculate the upper bound for the 95% confidence interval. Hint: you'll need to find the critical value for t using a t-table Round your answer to four decimal places D Question 7 2 pts Suppose we gather the following sample: X 48 17 37 28 16 10 28 16 26 22 Using this sample, calculate the lower bound for the 95% confidence interval. Hint: you'll need to find the critical value for t using a t-table Round your answer to four decimal places. No new data to save. Last checked at 11:21pm Submit Quiz V