A farm claims that the chicken eggs it produces contains 6.80g of protein on average. A large sample of eggs taken at random from the farm yields a sample mean of 6.10g of protein. Using the sample, a 95% confidencelevel for the population mean is constructed as (5.36, 6.84). Let udenote the average amount of protein (in g) in the eggs produced at the farm.(a) A two-tail test of the null hypothesis Ho μ = 6.80 versus the alternative H₁: 6.80 at the 5% level of significance is carried out.What is the conclusion of the test? In the answer box, enter R for 'reject Ho' and enter DNR for 'do not reject Ho. Enter N if there is insufficient information to draw a conclusion.Answer:(b) A one-tail test of the null hypothesis Ho = 6.80 versus the alternative hypothesis H₁ μ< 6.80 at the 5% level of significance is carried out.What is the conclusion of the test? In the answer box, enter R for 'reject Ho' and enter DNR for 'do not reject Ho'. Enter N if there is insufficient information to draw a conclusion.Answer:

The given data is as follows:The claim is that the mean protein in chicken eggs is 6.80g.Sample…

Answered: A farm claims that the chicken eggs it…

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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Similar questions

Let x represent the number of mountain climbers killed each year. The long-term variance of x is approximately σ2 = 136.2. Suppose that for the past 11 years, the variance has been s2 = 116.2. Use a 1% level of significance to test the claim that the recent variance for number of mountain-climber deaths is less than 136.2. Find a 90% confidence interval for the population variance. A) Find the value of the chi-square statistic for the sample. (Round your answer to two decimal places.) B) Find or estimate the P-value of the sample test statistic. C) Based on your answers in parts (a) to (c), will you reject or fail to reject the null hypothesis?
Let x = age in years of a rural Quebec woman at the time of her first marriage. In the year 1941, the population variance of x was approximately σ2 = 5.1. Suppose a recent study of age at first marriage for a random sample of 41 women in rural Quebec gave a sample variance s2 = 3.0. Use a 5% level of significance to test the claim that the current variance is less than 5.1. Find a 90% confidence interval for the population variance. Find the requested confidence interval for the population variance. (Round your answers to two decimal places.) lower and upper limit
A sample of 20 items provides a sample standard deviation of 4.
In a large design class, the scores on the "PDI" project were normally distributed with u = 100. The professor examined a sample of n= 56 students who used extra resources instead of only one resource like the other students in the class He found that the mean for students who used extra resources was M= 104.125. He used a one-sample t test to analyze the results, and part of the SPSS output is shown below. %3D One-Sample Statistics Std Error Mean N. Mean Std Deviation pdi 56 104.1250 12.58435 1 68165 One-Sample Test Test Value 100 95% Confidence Interval of the Difference Mean Difference df Sig (2-tailed) 55 Lower Upper 7.4951 pdi 2453 017 4.12500 7549 A. What are the professor's null and altemative hypotheses? B. 2. reject H, b. do not reject H, What is the professor's decision? C. resources. Identify this inform2tion and explain how you used it. You can use certain information from the table to answer Part B without referring to any other
A researcher conducts an independent- measures research study and obtains t = 2.070 with df = 28. How many individuals participated in the entire research study? Using a two- tailed test with α = .05, is there a significant difference between the two treatment conditions? Compute r2 to measure the percentage of variance accounted for by the treatment effect.
How large of a sample is required for a to construct a 99% confidence interval around a mean with an error of less than 1.5. Assume the standard deviation is 42.
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 =
A researcher conducts an independent- measures research study and obtains t = 2.070 with df = 28. How many individuals participated in the entire research study? Using a two- tailed test with α = .05, is there a significant difference between the two treatment conditions? Compute r2 to measure the percentage of variance accounted for by the treatment effect.
A company manufactures tennis balls. When its tennis balls are dropped onto a concrete surface from a height of 100 inches, the company wants the mean height the balls bounce upward to be 54.8 inches. This average is maintained by periodically testing random samples of 25 tennis balls. If the t-value falls between −t0.98 and t0.98, then the company will be satisfied that it is manufacturing acceptable tennis balls. A sample of 25 balls is randomly selected and tested. The mean bounce height of the sample is 56.6 inches and the standard deviation is 0.25 inch. Assume the bounce heights are approximately normally distributed. Is the company making acceptable tennis balls? Find −t0.98 and t0.98. −t0.98 = t0.98= Find the t-value
The population of healthy female adults, the mean red blood cell count (RBC) is 4.8 (millions of cells per cubic millimeter of whole blood). A researcher thinks the RBC is underestimated, so she conducts a test of significance using Null Hypothesis: µ ≤ 4.8 vs. Alternative Hypothesis: µ >4.8. If the true mean RBC is 4.75 and the null hypothesis is rejected, out of the four options below, what has occured? Type 1 Error, Type 2 Error, No error, OR can’t tell without knowing the degrees of freedom?
A company manufactures tennis balls. When its tennis balls are dropped onto a concrete surface from a height of 100 inches, the company wants the mean height the bails bounce upward to be 55.4 inches. This average is maintained by periodically testing random samples of 25 tennis balls. If the t-value falls between - to 90 and to so. then the company will be satisfied that it is manufacturing acceptable tennis balls. A sample of 25 balls is randomly selected and tested. The mean bounce height of the sample is 56.2 inches and the standard deviation is 0.25 inch. Assume the bounce heights are approximately normally distributed. Is the company making acceptable tennis balls? Find - to so and to so -o s0 to so O (Round to three decimal places as needed.)

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