Use the output and an appropriate table to compute the P-value for the test of H0:μ≥73.6 versus H1:μ<73.6. Use the output and an appropriate table to compute a 99% confidence interval for μ.
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Use the output and an appropriate table to compute the P-value for the test of H0:μ≥73.6 versus H1:μ<73.6.
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Use the output and an appropriate table to compute a 99% confidence interval for μ.
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- A sample of size 16 was taken from a very large population. Sample statistics, x¯ and s, were used to find that the 50% confidence interval was (158.825, 169.175). x¯=s=Gary observed the fuel efficiency of his SUV. After the first 100 times he filled up the tank, he found the mean was 23.4 kilometers per gallon (kpg) with a population standard deviation of 0.9 kpg. Compute the 90 percent confidence interval for his kpg.Construct a 90% confidence interval for u, - Ho with the sample statistics for mean cholesterol content of a hamburger from two fast food chains and confidence interval construction formula below. Assume the populations are approximately normal with unequal variances. Stats X = 122 mg, s, = 3.72 mg, n, = 12 X2 = 51 mg, s, =2.17 mg, n2 = 14 %3D %3D Confidence interval when (X1 – X2) -t variances are not equal(1a) letter b plsAssume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value tα/2, (b) find the critical value zα/2, or (c) state that neither the normal distribution nor the t distribution applies. Here are summary s tatistics for randomly selected weights of newborn girls: n=250, x=31.6 hg, s=6.6 hg. The confidence level is 90%. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. tα/2=nothing (Round to two decimal places as needed.) B. zα/2=nothing (Round to two decimal places as needed.) C. Neither the normal distribution nor the t distribution applies.A sample of size n = 10 is drawn from an approximately normal population whose standard deviation is 12.5. The sample mean is x = 50.9. Construct a 99% confidence interval for μ.A sample of 20 fossil skeletons of an extinct species of bird has been collected. The mean length of the skulls in this sample is 6.2 cm and the standard deviation of the sample is 0.35cm. Assuming that such measurements are normally distributed, find a 90% confidence interval for the population mean length of the skulls of this species of bird. You may want to use one of these: qt (p=0.10, df-19, lower.tail=FALSE)=1.327728 qt (p=0.05, df-19, lower.tail=FALSE)=1.729133 qnorm(0.10, mean=0, sd=1, lower.tail=FALSE) =1.281552 qnorm(0.05,mean=0, sd=1, lower.tail=FALSE)=1.644854 O(6.065, 6.335) (5.624, 6.776) (5.751, 6.649) (5.595, 6.805)You take 7 measurements and obtain a sample mean of M7 = 3.51 and a sample variable of V7 = 0.94. Select the value of such that [M] is a confidence interval for the mean with confidence level 0.9. Enter your answer up to three decimal places.Construct a 99% confidence interval for H1 H2 with the sample statistics for mean cholesterol content of a hamburger from two fast food chains and confidence interval construction formula below. Assume the populations are approximately normal with unequal variances. Stats x₁ = 135 mg, s₁ = 3.82 mg, n₁ = 18 Confidence interval when (x-2)- variances are not equal 2 AA warehouse owner wants to know the average weight of books at his facility. He weighs 30 books and finds that the sample has a mean weight of 7.28 pounds and standard deviation of 2.44 pounds. Construct a 99%confidence interval for the population mean of book weights. Assume the population is normally distributed.Choose the correct confidence interval and critical value used in the calculation. (6.24,8.32)Zc=2.326) (6.13,8.43)Zc=2.576) (6.06,8.5) tc=2.744) (6.05,8.51 tc=2.75) (6.05,8.51)tc=2.7564)We wish to give a 90% confidence interval for u. Here, u denotes the mean value of a normally distributed random variable Y. In order to develop this confidence interval, we have obtained a random sample of 5 elements from the population on which Y is defined. The data for the sample are Y=4,6,7,8,10.Give the margin of error for the 90% confidence interval for uConstruct a 90% confidence interval for u, -la with the sample statistics for mean chalesterol content of a hamburger from two fast food chains and confidence interval construction formula below Assume the populations are approximately normal with unequal variances Stats X =71 mg. s, = 3.99 mg. n = 15 X2 = 59 mg. s2= 2.16 mg na Confidence interval when variances are not equal df is the smaller of n1 or n, - 1 Enter the andpoints of the intanial I Round to the nearest intoger as needed )SEE MORE QUESTIONSRecommended textbooks for youA First Course in Probability (10th Edition)ProbabilityISBN:9780134753119Author:Sheldon RossPublisher:PEARSONA First Course in Probability (10th Edition)ProbabilityISBN:9780134753119Author:Sheldon RossPublisher:PEARSON