For a sample of n= 65, find the probability of a sample mean being less than 24.1 if µ = 24 and o = 1.17. E Click the icon to view page 1 of the standard normal table. Click the icon to view page 2 of the standard normal table. For a sample of n= 65, the probability of a sample mean being less than 24.1 if u = 24 and o = 1.17 is. (Round to four decimal places as needed.) Would the given sample mean be considered unusual? The sample mean be considered unusual because it has a probability that is than 5%.

For a sample of n= 65, find the probability of a sample mean being less than 24.1 if µ = 24 and o = 1.17. E Click the icon to view page 1 of the standard normal table. Click the icon to view page 2 of the standard normal table. For a sample of n= 65, the probability of a sample mean being less than 24.1 if u = 24 and o = 1.17 is. (Round to four decimal places as needed.) Would the given sample mean be considered unusual? The sample mean be considered unusual because it has a probability that is than 5%.

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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Answer the following questions using the z-score chart( attached below) or by using a spreadsheet. Find the z-score for x = 8 if the mean is 7 and the standard deviation is 2. Find the percentile for x = 8 if the mean is 7 and the standard deviation is 2. For a mean of 20 and standard deviation of 5, find . For a mean of 75 and a standard deviation of 3, find .
Determine which of the following are characteristics of a normal curve.
.Gentle Ben is a Morgan horse at a Colorado dude ranch. Over the past 8 weeks, a veterinarian took the following glucose readings from this horse (in mg/100ml).93 88 83 105 99 110 87 89Let x be a random variable representing glucose readings taken from Gentle Ben. We may assume that x has a normal distribution, and we know from past experience that ? = 12.8 . The mean glucose level for horses should be ? = 86 mg/100 ml. Do these data indicate that Gentle Ben has an overall average glucose level higher than 86? Use ? = 0.05. d. What sampling distribution will you use? Explain the rationale for your choice of sampling distribution.e. Compute the sample test statistic.f. Using Critical region method, find (or estimate) the critical value. Sketch the sampling distribution and show the area corresponding to the critical region.
Use the standard normal table to find the z-score that corresponds to the given percentile. If the area is not in the table, use the entry closest to the area. If the area is halfway between two entries, use the z-score halfway between the corresponding z-scores. If convenient, use technology to find the z-score. P20 z 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0.00 −3.4 0.0002 0.0003 0.0003 0.0003 0.0003 0.0003 0.0003 0.0003 0.0003 0.0003 −3.3 0.0003 0.0004 0.0004 0.0004 0.0004 0.0004 0.0004 0.0005 0.0005 0.0005 −3.2 0.0005 0.0005 0.0005 0.0006 0.0006 0.0006 0.0006 0.0006 0.0007 0.0007 −3.1 0.0007 0.0007 0.0008 0.0008 0.0008 0.0008 0.0009 0.0009 0.0009 0.0010 −3.0 0.0010 0.0010 0.0011 0.0011 0.0011 0.0012 0.0012 0.0013 0.0013 0.0013 −2.9 0.0014 0.0014 0.0015 0.0015 0.0016 0.0016 0.0017 0.0018…
For the standard normal curve, find the z-score that corresponds to the third quartile. Click here to view page 1 of the standard normal table. Click here to view page 2 of the standard normal table. O A. 0.77 B. - 0.23 O C. -0.67 O D. 0.67
Assume the samples are random and independent, the populations are nomally distributed, and the population variances are equal. The table available below shows the prices (in dollars) for a sample of automobile batteries. The prices are classified according to battery type. At a = 0.10, is there enough evidence conclude that at least one mean battery price is different from the others? Complete parts (a) through (e) below. E Click the icon to view the battery cost data. (a) Let u1. P2. H3 represent the mean prices for the group size 35, 65, and 24/24F respectively. Identify the claim and state Ho and H. H Cost of batteries by type The claim is the V hypothesis. Group size 35 Group size 65 Group size 24/24F 101 111 121 124 D 146 173 182 278 124 140 141 89 (b) Find the critical value, Fo, and identify the rejection region. 90 79 84 The rejection region is F Fo, where Fo = (Round to two decimal places as needed.) (c) Find the test statistic F. Print Done F= (Round to two decimal places as…
Suppose a sample of O-rings was obtained and the wall thickness (in inches) of each was recorded. Use a normal probability plot to assess whether the sample data could have come from a population that is normally distributed.. Click here to view the table of critical values for normal probability plots Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. 0.180 0.188 0.192 0.199 0.213 0.218 0.227 0.240 0.264 0.266 0.287 0.288 0.303 0.304 0.317 0.308 Using the correlation coefficient of the normal probability plot, is it reasonable to conclude that the population is normally distributed? Select the correct choice below and fill in the answer boxes within your choice. (Round to three decimal places as needed.) OA. Yes. The correlation between the expected z-scores and the observed data, data come from a normal population. OB. No. The correlation between the expected z-scores and the observed data, that…
A student who took Stat 2 last semester learns that their overall course score was at the 85th percentile. Assuming that a histogram of all the Stat 2 course scores from last semester follows the normal curve, this means that this student had a score that was how many SDs above the average score? Choose the answer that is closest. Group of answer choices 1.15 1.05 1.10 1.0 PreviousNext
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If P(Z>z1)=0.10 in the standard normal distribution, which of the following is the nearest value for z1? Please select one: a. 2.29 b. 1.96 c. 1.10 d. 1.28 e. 1.64
Use a table of areas for the standard normal curve to find the z-score having area 0.09 to its left under the standard normal curve. Click here to view page 1 of the normal distribution table. Click here to view page 2 of the normal distribution table. ..... A. z= - 1.39 O B. z= - 1.34 O C. z= - 1.26 O D. z= -1.45
The population mean and standard deviation are given below. Find the required probability and determine whether the given sample mean would be considered unusual. For a sample of n = 67, find the probability of a sample mean being less than 22,5 if u= 23 and g = 1.21. E Click the icon to view page 1 of the standard normal table. E Click the icon to view page 2 of the standard normal table. For a sample of n = 67, the probability of a sample mean being less than 22.5 if u = 23 and o =1.21 is (Round to four decimal places as needed.)