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It is given that Total frequency n = 38, then Frequency for class 10-14 = 38 - (1 + 5 + 4 + 10 + 3)…

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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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Similar questions

Suppose that we know that 33.8% of the people born in the United States between 1936 and 1951 have BLUE eyes. Three randomly selected Americans are selected and examined for eye color. If you let success correspond to an American having BLUE eyes, calculate the following. Calculate the mean.
Use the results from a survey of a simple random sample of 1048 adults. Among the 1048 respondents, 89% rated themselves as above average drivers. We want to test the claim that 4/5 of the adults rate themselves as above average drivers. A. Identify the actual number of respondents who rated themselves as above average drivers
Assume that you want to find the probability that when five consumers are randomly selected, exactly two of them are comfortable with delivery by drones. Also assume that 42% of consumers are comfortable with the drones (based on a Pitney Bowers survey). 1. Identify the values of n, x, p, and q. 2. Find the mean and the standard deviation.
Use the results from a survey of a simple random sample of 1108 adults. Among the 1108 respondents, 84% rated themselves as above average drivers. We want to test the claim that 3/4 of adults rate themselves as above average drivers. a. Identify the actual number of respondents who rated themselves as above average drivers.
In recent years, approximately 55% of eligible voters take the time to vote in presidential elections. A poll based on a random sample of 200 eligible voters finds that 128 plan to vote in the next presidential election. Does this data provide convincing evidence at the ?α = 0.05 level that the proportion of eligible voters who will take time to vote in the next presidential election differs from 0.55?
Consider 110 single students in a college class as the population of interest. The mean number of different individuals dated in the past month for these students is 2.0. A simple random sample of 10 students was selected, and their mean was 1.5. The values 1.5 and 2.0 are _________ and __________, respectively
. It has been found that 85.6% of all enrolled college and university students in the United States are undergraduates. A random sample of 500 enrolled college students in a particular state revealed that 420 of them were undergraduates. Is there sufficient evidence to conclude that the proportion differs from the national percentage? Use a = 0.05.
A sheriff wanted to see if there was a difference in the number of arrests in a certain city for four types of crimes. A random sample of 160 arrests showed a distribution of 38 arrests for larceny thefts, 50 for property crimes, 28 for drug use, and 44 for driving under the influence.. Is there enough evidence to reject the claim that the number of arrests for each category of crimes is the same? Use α = 0.05
n a population-based cohort study, an entire community was interviewed regarding smoking habits and then followed for one year. Upon ascertainment of all lung cancer deaths, the investigator obtained the following data: Number of Individuals Lung Cancer Deaths Smokers 24,500 15 Nonsmokers 10,500 2 Calculate the proper measure of association of smoking and lung cancer death. Round to the tenth decimal.
In tests of a computer component, it is found that the mean time between failures is 520 hours. A modification is made which is supposed to increase the time between failures. Tests on a random sample of 10 modified components resulted in the following times (in hours) between failures.
.In sampling a large number of electronic chips manufactured by a machine, the mean number of defective electronics chips in a sample of 30 is 3 out of 1000 such a sample. How many would be expected to contain at least 3 defective electronics chips?
Mario made a claim that 95% of college male students in their school join triathlon. His friend, Baste, finds this hard to believe and decided to check the validity of such claim, so he took a random sample and found out that 75 out of 90 had joined the race. 1. What is the population proportion? 2. What is the sample proportion? 3. Is the sample large enough to use the Central Limit Theorem?

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