Use the given information to find the number of degrees of freedom, the critical values x2 and x², and the confidence interval estimate of o. It is reasonable to assume that a simple random sample has been selected froma population with a normal distribution.White Blood Counts of Women 95% confidence; n = 149, s= 1.97 (1000 cells/μL).

From the given information we find the 95% confidence interval for sd.

Answered: Use the given information to find the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Use the given information to find the number of degrees of freedom, the critical values χ2L and χ2R, and the confidence interval estimate of σ. It is reasonable to assume that a simple random sample has been selected from a population with a normal distribution.Platelet Counts of Women 98% confidence; n=27, s=65.8df=
Use the given information to find the number of degrees of freedom, the critical values x2 and x2, and the confidence interval estimate of o. It is reasonable to assume that a simple random sample has been selected from a population with a normal distribution. White Blood Counts of Women 90% confidence; n = 148, s= 1.96 (1000 cells/μL). df = (Type a whole number.) x2=0 (Round to two decimal places as needed.) X²R = (Round to two decimal places as needed.) The confidence interval estimate of ois (1000 cells/μL)
Cigarette Smoking A researcher found that a cigarette smoker smokes on average 30 cigarettes a day. She feels that this average is too low. She selected a random sample of 9 smokers and found that the mean number of cigarettes they smoked per day was 32 . The sample standard deviation was 2.4. At α=0.10, is there enough evidence to support her claim? Assume that the population is approximately normally distributed. Use the critical value method and tables. (a)State the hypotheses and identify the claim. H0: claim/ do not claimH1: claim/do not claim This hypothesis test one tailed/two tailed a (Choose one) test. (b)Find the critical value. Round the answer to at least two decimal places. Critical value is c)Compute the test value. Round the sample standard deviation and score value to at least two decimal places as needed. F= P= (d)Make the decision. Reject/ do not reject (Choose one) the null hypothesis (e)Summarize the results. There ▼(Choose one) enough evidence to support…
Use the given information to find the number of degrees of freedom, the critical values x and x6, and the confidence interval estimate of o. It is reasonable to assume that a simple random sample has been selected from a population with a normal distribution. Platelet Counts of Wormen 95% confidence; n=23, s 65.5.
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Test the claim about the population mean μ at the level of significance α. Assume the population is normally distributed. Claim: μ<5115; α=0.05 Sample statistics: x=5317, s=5949, n=55
Q1A Hi wonderful Bartleby team, I need help with this exercise, please provide answer and short explanation for all the answers. Thanks in advance. The last part of it is the sentence and the options are: -(Reject/ Fail to reject) the null hypothesis. There (Is / Not) sufficient evidence to support the claim that those treated with magnets have a greater mean reduction in pain than those given a sham treatment.
Use a t-distribution to find a confidence interval for the difference in means μ = μ₁ - ₂ using the relevant sample results from paired data. Assume the results come from random samples from populations that are approximately normally distributed, and that differences are computed using d = x₁ - x₂. A 99% confidence interval for using the paired data in the following table: best estimate- i margin of error- i The 99% confidence interval is i Save for Later Case Treatment 1 Treatment 2 1 22 19 2 to 3 27 30 Give the best estimate for 4, the margin of error, and the confidence interval. Enter the exact answer for the best estimate, and round your answers for the margin of error and the confidence interval to two decimal places. 28 24 4 5 25 28 21 21
Use the given information to find the number of degrees of freedom, the critical values χ2L and χ2R, and the confidence interval estimate of σ.It is reasonable to assume that a simple random sample has been selected from a population with a normal distribution. Platelet Counts of Women 98% confidence; n=24, s=65.9. df=(type as whole number)
Test the claim about the population mean, μ, at the given level of significance using the given sample statistics. Claim: μ≠7000; α=0.05; σ=324. Sample statistics: x=7300, n=39 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 values are B. The critical value is
Use the t-distribution table to find the critical value(s) for the indicated alternative hypotheses, level of significance a, and sample sizes n, and n2. Assume that the samples are independent, normal, and random. Answer parts (a) and (b). Ha: H1 ), use "One Tail, a" column with a positive sign two-tailed (+), use “Two Tails, a" column with a negative and a positive sign. (a) Find the critical value assuming that the population variances are equal. Read the T Table when d.f. = n,+ n2 -2 (Type an integer or decimal rounded to three decimal places as needed. Use a comma to separate answers as needed.) (b) Find the critical value assuming that the population variances are not equal. Read the T Table when d.f.= smaller of n,-1 or n2 -1 (Type an integer or decimal rounded to three decimal places as needed. Use a comma to separate answers as needed.)
Q2

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