QUESTION 12 Find the critical value for 0.95 and 10 O 1.960 2.201 2.262 0 2.228 QUESTION 13 It the underlying population

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Question 12 Find The Critical Value For 0 95 And 10 O 1 960 2 201 2 262 0 2 228 Question 13 It The Underlying Population 1 (33.92 KiB) Viewed 80 times

QUESTION 12 Find the critical value for 0.95 and 10 O 1.960 2.201 2.262 0 2.228 QUESTION 13 It the underlying population is normally distributed, which of the following would produce the widest confidence interval for u? O 95% confidence interval with n = 18 95% confidence interval with n= 180 90% confidence interval with n = 18 QUESTION 14 A random sample of 18 light bulbs is drawn from a normally distributed population. The sample me 40 hours and the population standard deviation is 40 hours. Provide the upper confidence limit (UCL) for a 90% confidence interval for the mean life of all light bulbs of this type. Round you wwer to the nearest Integer 496 464 498 490 QUESTION 15 35 students were randomly selected from a large group of students taking a calculus test. The mean score of the 35 students ww, und the Wandard deviation was 2.3. Asume that the scores are normally distributed Construct a 99% confidence interval for the mean score of all students taking the test. Round your answer up to two decimal places. (82.95, 83.05) (2.82, 83.18) (2.99, 83.00) 1.94, 14.06) Click to Submit to be and submit. Click Save All Anesto save all aruten