(b)1,436critical value:1,833Calculate0.0002.0000.832Confidence interval of90%:7,241±0.832+4.000Based on the sample, plot the confidence interval of the 90%for the population mean of all lengths of adult male killer whales.• Enter the upper bound and lower bound values on the graph to display the confidence interval.●Under the dot (◆), enter the statementfrom the article.90% confidence interval:6.4096.0007.2418.0738.0000.00510040=2,82110045 2,262YO30=1,833XYO160 1,38310.000Ś partially correct(b): Your answer is wrong.Assume that the population lengths of adult male killer whales follow approximately a normal distribution. A recent article published in the journal Zoology Nowstates that the mean of this population is6.99 m. You want to test the claim in the article, so you select a random sample of 10adult male killer whales and recordthe lengths of each.Follow these steps to construct a confidence interval for the90%for the population mean of all lengths of adult male killer whales. Then, indicate whether theconfidence interval that you construct contradicts the article's statement. (If necessary, you can refer to a list of formulas .)(to) Click "Take Sample" to see the results of your random sample.Take a samplenumber of killer whalesSample size:1010sample mean7,241sample standardStandard error:deviationEnter the values for the sample size, point estimate of the mean, sample standard deviation, and critical value that you need to construct theconfidence interval for the90%. (Choose the correct critical value from the critical value table provided). When finished, click on "Calculate".1,436XŚ

The claimed population length of adult male killer whales is μ=6.99 m.The no. of killer whales is…

Answered: Assume that the population lengths of…

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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Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout. Suppose a friend tells you that the average length of trout caught in Pyramid Lake is μ = 19 inches. However, a survey reported that of a random sample of 46 fish caught, the mean length was x = 18.6 inches, with estimated standard deviation s = 3.4 inches. Do these data indicate that the average length of a trout caught in Pyramid Lake is less than μ = 19 inches? Use α = 0.05. What is the value of the sample test statistic? (Round your answer to three decimal places.)Estimate the P-value. a) P-value > 0.250 b) 0.100 < P-value < 0.250 c) 0.050 < P-value < 0.100 d)0.010 < P-value < 0.050 e) P-value < 0.010 Sketch the sampling distribution and show the area corresponding to the P-value. Based on your answers in parts (a) to (c), will you reject or fail to reject the null hypothesis? Are the data statistically significant at level α? a) At the α = 0.05…
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It takes an average of 9.1 minutes for blood to begin clotting after an injury. An EMT wants to see if the average will decline if the patient is immediately told the truth about the injury. The EMT randomly selected 49 injured patients to immediately tell the truth about the injury and noticed that they averaged 8 minutes for their blood to begin clotting after their injury. Their standard deviation was 3.31 minutes. What can be concluded at the the a = 0.05 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Hint: Ho: ? H₁: ? Select an answer Select an answer C c. The test statistic? is -2.326. Enter it here d. The p-value is 0.0121364015. Enter it here e. The p-value is ? a f. Based on this, we should Select an answer the null hypothesis. g. Thus, the final conclusion is that ... (please show your answer to 3 decimal places.) (Please show your answer to 4 decimal places.) The data suggest the populaton mean is…
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a data set has a mean of 210 and a standard deviation of 40, what is the z- Score for a ralue of140 If

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