Find the critical values χ2L and χ2R for the given confidence level c and sample size n. c=0.99, n=29
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Q: Find the value of ta for a 99% confidence interval when sample size is 30
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- Find the critical value to for the confidence level c = 0.99 and sample size n = 25. tc= Click the icon to view the t-distribution table. (Round to the nearest thousandth as needed.) t-Distribution Table d.f. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Level of confidence, c One tail, a Two tails, a d.f. 1 0.80 0.90 0.95 0.98 0.99 0.10 0.05 0.025 0.01 0.005 0.20 0.10 0.05 0.02 0.01 3.078 6.314 12.706 31.821 63.657 1.886 2.920 4.303 6.965 9.925 2 1.638 2.353 3.182 4.541 5.841 3 1.533 2.132 2.776 3.747 4.604 4 1.476 2.015 2.571 3.365 4.032 5 1.440 1.943 2.447 3.143 3.707 6 1.415 1.895 2.365 2.998 3.499 7 1.397 1.860 2.306 2.896 3.355 8 1.383 1.833 2.262 2.821 3.250 9 1.372 1.812 2.228 2.764 3.169 10 1.363 1.796 2.201 2.718 3.106 11 1.356 1.782 2.179 2.681 3.055 12 1.350 1.771 2.160 2.650 3.012 13 1.345 1.761 2.145 2.624 2.977 14 1.341 1.753 2.131 2.602 2.947 15 1.337 1.746 2.120 2.583 2.921 16 1.333 1.740 2.110 2.567 2.898 17 1.330 1.734 2.101 2.552 2.878 18 1.328…Use technology to construct the confidence intervals for the population variance o2 and the population standard deviation o. Assume the sample is taken from a normally distributed population. c = 0.95, s2 = 15.21, n= 30 The confidence interval for the population variance is (Round to two decimal places as needed.) The confidence interval for the population standard deviation is (Round to two decimal places as needed.)A physical therapist wanted to know whether the mean step pulse of men was less than the mean step pulse of women. She randomly selected 54 men and 70 women to participate in the study. Each subject was required to step up and down a 6-inch platform. The pulse of each subject was then recorded. The following results were obtained. Two sample T for Men vs Women N Mean StDev SE Mean Men Women 98% CI for mu Men - mu Women (- 12.20, - 1.00) T-Test mu Men = mu Women (vs H2 O C. Ho: H1 = H2; Ha: H1 #H2 (b) Identify the P-value and state the researcher's conclusion if the level of significance was a = 0.01. What is the P-value? P-value =
- Test the claim about the population mean, μ, at the given level of significance using the given sample statistics. Claim: μ≠5000; α=0.08; σ=393. Sample statistics: x=5400, n=37 Calculate the standardized test statistic. _____? The standardized test statistic is _____? .(Round to two decimal places as needed.) Determine the critical value(s). Select the correct choice below and fill in the answer box to complete your choice. (Round to two decimal places as needed.) A. The critical value is _____? . B. The critical values are ± _____? Determine the outcome and conclusion of the test. Choose from the following. A.Reject H0. At the 8% significance level, there is enough evidence to reject the claim. B.Fail to reject H0. At the 8% significance level, there is not enough evidence to reject the claim. C.Reject H0. At the 8% significance level, there is enough evidence to support the claim. D. Fail to reject H0. At the 8% significance…Pick a, b, or cDetermine the critical zz-values (z α/2 )(z α/2 ) corresponding to the confidence levels in the table below. Round answers to 3 decimal places for right tail areas and 2 decimal places for critical values Confidence Level Right Tail Area (α/2)(α/2) Critical Value (zα/2)(zα/2) 94% 86% 99% 82% 83%
- Construct the confidence interval for the population mean u. c= 0.95, x= 6.1, o = 0.6, and n = 40 A 95% confidence interval for u is ( D. (Round to two decimal places as needed.)Find the critical value t, for the confidence level c = 0.99 and sample size n = 12. Click the icon to view the t-distribution table. (Round to the nearest thousandth as needed.) View an example Get more help - Help me solve thises A sample of 12 fossil skeletons of an extinct species of bird has been collected. The mean length of the skulls in this sample is 5.29 cm and the standard deviation of the sample is 0.21 cm. 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-11, lower. tail-FALSE)=1.36343 qt(p-0.05, df-11, lower.tail-FALSE) =1.795885 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 (4.945, 5.635) O (4.913, 5.667) O (5.021, 5.559) O (5.181, 5.399)
- Determine the 95% confidence interval estimate for the population mean of a normal distribution given n= in 144, o = 128, and x= 1,100, The 95% confidence interval for the population mean is from to. (Round to two decimal places as needed. Use ascending order.)A psychologist would like to know whether the 4 seasons have any consistent effect on Amazon shopping. In the middle of each season, a psychologist selects a random sample of n=23n=23 students. Complete the following, ANOVA summary table (α=0.10α=0.10). Round values for SS and MS to 3 decimal places as needed. Round p-value to 4 decimal places. Source SS df MS F P Between 1.339 Within 1090.32 TOTALUse the data to calculate the sample variance, s. (Round your answer to five decimal places.) n = 7: 1.6, 3.5, 1.6, 2.1, 3.1, 2.9, 3.0 %3D Construct a 95% confidence interval for the population variance, of. (Round your answers to two decimal places.) to Test Ho: = 0.8 versus H: of + 0.8 using a = 0.05. State the test statistic. (Round your answer to two decimal places.) x2 State the rejection region. (If the test is one-tailed, enter NONE for the unused region. Round your answers to two decimal places.) x2 > x² State the conclusion. H, is rejected. There is sufficient evidence to indicate that the population variance is different from 0.8. H, is rejected. There is insufficient evidence to indicate that the population variance is different from 0.8. H, is not rejected. There is sufficient evidence to indicate that the population variance is different from 0.8. O Ho is not rejected. There is insufficient evidence to indicate that the population variance is different from 0.8.
