The population mean and standard deviation are given below. Find the required probability and determine whether the given sample mean would be considered For a sample of n= 68, find the probability of a sample mean being less than 24.5 if u= 25 and o = 1.16. 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= 68, the probability of a sample mean being less than 24.5 if u = 25 and o = 1.16 is (Round to four decimal places as needed.) Would the given sample mean be considered unusual? V be considered unusual because it has a probability that is than 5%. The sample mean

The population mean and standard deviation are given below. Find the required probability and determine whether the given sample mean would be considered For a sample of n= 68, find the probability of a sample mean being less than 24.5 if u= 25 and o = 1.16. 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= 68, the probability of a sample mean being less than 24.5 if u = 25 and o = 1.16 is (Round to four decimal places as needed.) Would the given sample mean be considered unusual? V be considered unusual because it has a probability that is than 5%. The sample mean

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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Use the normal distribution of SAT critical reading scores for which the mean is 514 and the standard deviation is 115. Assume the variable x is normally distributed. (a) What percent of the SAT verbal scores are less than 650? (b) If 1000 SAT verbal scores are randomly selected, about how many would you expect to be greater than 550? Click to view page 1 of the standard normal table. LOADING... Click to view page 2 of the standard normal table. LOADING... Question content area bottom Part 1 (a) Approximately 1.181.18% of the SAT verbal scores are less than 650. (Round to two decimal places as needed.) Part 2 (b) You would expect that approximately 0.880.88 SAT verbal scores would be greater than 550. (Round to the nearest whole number as needed.)
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A developmental psychologist is interested in studying how long babies gaze at a photograph of a human face. To test this question, she shows a picture to a sample of six babies and records the length of their gaze in seconds. The data are as follows: 12, 17, 18, 20, 20, 29. Calculate the mean, median, mode, range, variance and standard deviation for the sample.
The height of women ages 20-29 is normally distributed, with a mean of 63.8 inches. Assume o = 2.8 inches. Are you more likely to randomly select 1 woman with a height less than 65.2 inches or are you more likely to select a sample of 23 women with a mean height less than 65.2 inches? Explain. Click the icon to view page 1 of the standard normal table. Click the icon to view page 2 of the standard normal table. What is the probability of randomly selecting 1 woman with a height less than 65.2 inches? (Round to four decimal places as needed.)
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