1 GmailST"FCloudy"ttabcaps lockYouTube Maps SThe creator of the t-test, Gosset (who worked under the pseudonym Student)studied the effects of laevohysocyamine hydrobromide (LH) on sleep. Thequestion was, does the chemical provide additional hours of sleep? He studieda random sample of 10 people using LH and these are the additional hours ofsleep and found the average additional hours of sleep to be 2.33 hours, with astandard deviation of s = 2.00 hours.escConstruct and interpret a 95% confidence interval for the average additionalsleep that would be obtained for the population of all people using LH. Roundto the nearest thousandth.95% CI: (fnIvec.instructure m/courses/3662733/quizzes/10082290/takeF17QAEZⓇ2WSXaltA3E+D$4CQ SearchRF5VTGA6BYH7NUJ8MIprt scK(9<.altOhomQO UpdateOL30ctrl^ GAp<9:55 PM4/17/20230LCZEZZ ISLW15cw 127LLEVE S962BESS CEN01110 SESESECES DELIC(5958 19ZZELEZZE OCEZS2 LYSBL00645 32LEZSZZYS9451426909coses19:2905081520 10645.2392221 1910*5394 195C3000 C20140CO 10230213680SYCES SLLLL09894504529001 069LL39+02 605GEBCCLS2950215125 50 VC1129111ZEL 9596L2190505088 2168c45001058 LLLZL90088 61640C994 820Y81969-6106(92860925252.45taa

Sample size, n=10 Sample mean, x¯=2.33 Sample sd, s=2

Answered: The creator of the t-test, Gosset (who…

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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The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 245.4 and a standard deviation of 63.6. (All units are 1000 cells/μL.) Using the empirical rule, find each approx. percentage below. a. What is the approx. percentage of women with platelet counts within 3 standard deviations of the mean, or between 54.6 and 436.2? b. what is the approx. percentage of women with platelet counts between 118.2 and 372.6?
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 increase if the patient is immediately told the truth about the injury. The EMT randomly selected 45 injured patients to immediately tell the truth about the injury and noticed that they averaged 9.1 minutes for their blood to begin clotting after their injury. Their standard deviation was 0.91 minutes. What can be concluded at the the αα = 0.10 level of significance? For this study, we should use Select an answer t-test for a population mean z-test for a population proportion The null and alternative hypotheses would be: H0:H0: ? μ p Select an answer > < ≠ = H1:H1: ? μ p Select an answer = < ≠ > The test statistic ? z t = (please show your answer to 3 decimal places.) The p-value = (Please show your answer to 4 decimal places.) The p-value is ? ≤ > αα Based on this, we should Select an answer accept fail to reject reject…
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It takes an average of 12.5 minutes for blood to begin clotting after an injury. An EMT wants to see if the average will change if the patient is immediately told the truth about the injury. The EMT randomly selected 54 injured patients to immediately tell the truth about the injury and noticed that they averaged 12.4 minutes for their blood to begin clotting after their injury. Their standard deviation was 2.25 minutes. What can be concluded at the the αα = 0.10 level of significance? For this study, we should use     The null and alternative hypotheses would be: H0:H0:                  H1:H1:               The test statistic     =  (please show your answer to 3 decimal places.) The p-value =  (Please show your answer to 4 decimal places.) The p-value is     αα Based on this, we should      the null hypothesis. Thus, the final conclusion is that ... The data suggest the populaton mean is significantly different from 12.5 at αα = 0.10, so there is statistically significant…

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