T-Mobile Wi-Fi ?1 9:55 AM• 36%Done14 of 18FOLFIL FLLMF OUpdatei studeri.desmas.comiactivitybuilider/student/8088bcoe08264d0cod3ee897#screentc-beabee6: a5ct-4575-a535-f32a107ab362E Sian in PView Portrait Pro.O Nursing: Tracition.6 Legin Sessien Exolration.b Seling Assotiwe.Car tetiny tho..O Emeloymert CemterAups a ntourse Carncc.く10 of 14Next >Unit 4. Lesson 14: Using Normal Distributions for Exper.Destry OrceuRescarchers are tagging sharks using two different types of devices and want to know if the devices affect the heart rate of tho sharks. They tag one aroupof 8 sharks with a small device that collects a small amount of data and thoy tag another group of 8 sharks with a larger device that collects a large amountof data. They then measure the mean heart rate of the different groups and find that the difference in means is 2.5 beats per minute.Rescarchers run 1,000 simulations regrouping the data into 2 groups at random and record the differences in means for the groups in each simulation. Thehistogram shows the differences in maans from the simulations. They determine that the mean of the differences of means from the simulations is 0.028grams and the standard deviation for the differences of means from the simulations is 1.124 grams.What features of the distribution in the histogram let youknow that modeling with a norrnal distribution isreasonable?504540 +3530252015Model the simulations using a rormal distribution with amean of 0.028 and a standard deviation of 1.124. Whatis the area unider this nomal curve that is more extremethan 3?105-2 -1 0 1 2difference of means-4-334Submland Explain%2369.dcicteERTYADGKs lockretuCVBontroloptioncommandcommandoption!!

a) From the given histogram it is evident that the shape of the histogram is symmetrical around the…

What features of the distribution in the histogram iet you know that modeling with a nornal distribution is reasonable? Model the simulations using a normal distribution with a mcan of 0.028 and a standard deviation of 1.124, What is the area under this nomal curve that is more extreme than 37

What features of the distribution in the histogram iet you know that modeling with a nornal distribution is reasonable? Model the simulations using a normal distribution with a mcan of 0.028 and a standard deviation of 1.124, What is the area under this nomal curve that is more extreme than 37

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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A company that manufactures batteries used in electric cars is reporting that their newest model of battery has a mean lifetime, µ, of 18 years. To test the company's claim, a competitor has selected 56 of these batteries at random. The mean lifetime of the sample is 18.9 years. Suppose the population standard deviation of these lifetimes is known to be 4.8 years. Is there enough evidence to reject the claim that the mean lifetime of the newest model is 18 years? Perform a hypothesis test, using the 0.05 level of significance. (a) State the null hypothesis H, and the alternative hypothesis H,. Ho: 0 O
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On a Normal curve what z-score marks the 16th percentile? Put your answer rounded to 2 decimal places if needed On your paper, hand sketch the standard normal curve, mark the horizontal axis in standard deviation units and shade the area on the normal curve that you found.
please put your answers in excel sheet.**** Open the Excel program In our last computer assignment we learned how to find the standard normal distribution up to the given score value a, that is we found P(Z < a). We used Excel instead of the standard normal distribution table and evaluated P(Z<-1.72) with the command =NORMDIST(1.72,B1,B2,TRUE) and we obtained 0.042716 approximately. Here Z is standard normal distribution. In this exercise we will learn how to go backwards, that is from the probability P(Z < a) to the score a. In cell A1 type mean and in cell B1 type 0. That way we are letting mean be zero. Next click on cell A2 and type SD and in cell B2 type 1. That means that we let standard deviation be one. That is, our normal distribution is standard. Suppose we know that the percentile of the score is 4.2716%. We would like to find the corresponding score. Type 0.042716 in B6. That is the given probability of Z<a. We would like to find the…
Find the area of the shaded region. The graph depicts the standard normal distribution with mean 0 and standard deviation 1. Click to view page 1 of the table. Click to view page 2 of the table. The area of the shaded region is (Round to four decimal places as needed.) ew an example Get more help. Clear all ^ Z=0.29 Ch AutoPlay Apple iPhone Select t o
#6 Please answer. Hypotheses and summary sample statistics are given for a test for a proportion. Test H0 : p=0.5 vs Ha : p<0.5 when the sample has p^=0.42 and n=80 . Find the value of the standardized z-test statistic and then use the standard normal distribution to find the p-value. Round your answers to three decimal places. z-test statistic = Enter your answer; z-test statistic p-value = What is the conclusion using a 5% significance level? Reject H0. Do not reject H0.