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(if notdon't bother)Question 1 (1 point) Suppose x = 30, s=5 and n=210. What is the 95% confidence interval for μ. a) 29.29<μ<30.71 b) 19.36<u<20.63 c) 29.20<μ<30.80 d) 29.32<μ<30.68 e) 29.25 μ<30.75
Question 2 (1 point) Suppose X₁,...,x is a sample of successes and failures from a Bernoulli population with probability of success p. Let Ex=335 with n=440. Then a 85% confidence. interval for p is: O a) .7614 ± .0393 b) .7614.0589 Oc) .7614 ± .0293 d) .7614 ± .0582 e) .7614 ± .0689
Question 3 (1 point) Consider the sample 92, 90, 118, 97, 96, 99, 108, 115, 94, 93 from a normal population with population mean μ and population variance o². Find the 95% confidence interval for u. a) 100.2±10.33 b) 100.2+7.10 c) 100.2+5.78 d) 100.2+9.54 e) 100.2+9.28
Question 4 (1 point) Suppose x = 20, s=5 and n=300. What is the 95% confidence interval for u. a) 19.72<u<20.28 b) 19.64<u<20.17 O c) 19.43<u<20.57 d) 19.60<u<20.40 e) 19.36<u<20.63
Question 5 (1 point) Suppose X₁,...,xn is a sample of successes and failures from a Bernoulli population with probability of success p. Let [x=280 with n=400. Then a 75% confidence interval for p is: Please choose the best answer. a) .70 ±.0288 Ob) .70 ± .037 c) .70 ± .0323 d) .70 ±.0263 e) .70 ± .0258
Question 6 (1 point) Suppose X₁,...,xn is a sample of successes and failures from a Bernoulli population with probability of success p. Let [x=288 with n=430. Then a 80% confidence interval for p is: a) 0.6698 ± 0.0290 b) 0.6698 ± 0.0560 c) 0.6698 ± 0.1323 d) 0.6698 ± 0.0320 e) 0.6698 ± 0.5420
Question 7 (1 point) Suppose = 30, s=12 and n=55. What is the 90% confidence interval for μ. a) 27.34<μ<32.66 b) 19.77<µ<20.23 c) 14.46<u<25.54 d) 19.60<u<20.40 e) 14.20<u<2540
Question 8 (1 point) Suppose X₁,...,x is a sample of successes and failures from a Bernoulli population with probability of success p. Let [x=288 with n=380. Then a 90% confidence interval for p is: a) 0.7579 ± 0.2360 b) 0.7579 ± 0.0289 c) 0.7579 ± 0.0313 d) 0.7579 ± 0.0361 e) 0.7579 ± 0.5363
Question 9 (1 point) Suppose x = 25, s=10 and n=100. What is the 95% confidence interval for u. Please choose the best answer. a) 23.04<u<26.96 b) 23.41<u<25.59 c) 23.24<µ<26.15 d) 23.02<u<26.42 e) 23.37<μ<25.78
Question 10 (1 point) Suppose x = 20, s=4 and n=40. What is the 95% confidence interval for μ. a) 19.77<u<20.23 b) 19.72<µ<20.28 c) 18.76<u<21.24 d) 19.43<u<20.57 e) 19.60<μ<20.40
Question 11 (1 point) Consider the sample 33, 51, 61, 40, 62, 54, 58, 47, 32, 26 from a normal population with population mean μ and population variance o2. Find the 95% confidence interval for u. a) 46.4±10.54 Ob) 46.4±9.28 O c) 46.4±10.21 d) 46.4±9.14 e) 46.4±11.12
Question 12 (1 point) Consider the sample 34, 12, 49, 53, 42, 61, 40, 56 from a normal population with population mean μ and population variance o2. Find the 95% confidence interval for H. a) 43.375± 12.953 b) 43.375± 10.251 c) 43.375± 6.754 d) 43.375± 8.601 e) 43.375± 11.295
Question 13 (1 point) Suppose X₁,...,x is a sample of successes and failures from a Bernoulli population with probability of success p. Let [x=280 with n=400. Then a 95% confidence interval for p is: a) .7 ± .04491 b) .7 ±.08497 c) .7 ± .02491 d) .7 ±.03391 e) .7 ±.04691
Question 14 (1 point) Consider the sample 81, 89, 72, 85, 90, 75, 70, 71, 76, 77, 78, 79 from a normal population with population mean μ and population variance o2. Find the 95% confidence interval for u. a) 78.58±3.42 b) 78.58±5.12 c) 78.58±5.18 d) 78.58±4.21 e) 78.58±6.68
Question 15 (1 point) Consider the sample 52,55,79, 69, 72, 63, 70, 73, 66, 70,86 from a normal population with population mean μ and population variance o². Find the 95% confidence interval for u. Please choose the best answer. a) 68.64±4.53 b) 68.64±8.53 68.64±6.53 d) 68.64±1.53 e) 68.64±3.53