Answered: Ages Number of students 15-18 3 19-22 4…

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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Ages	Number of students
15-18	3
19-22	4
23-26	2
27-30	7
31-34	2
35-38	8

Similar questions

make frequency distribution table where there is the class interval and the frequency. use appropriate solution for class interval. use Sturges formula for number of classes and range over the no. of classes for the class size. this will lead to creating class interval.
random sample of 16 subjects The ages were: Assuming that age is normally distributed in the population, can we conclude that the mean age of the population is less than 60 years? Let α = 0.05.
A uniform distribution has a minimum of six and a maximum of ten. A sample of 50 is taken.Find the 70th percentile for the sums. (Round your answer to two decimal places.) How is the central limit theorem for sums z-score formula used to find the percentile?
Describing the sampling distribution of the sample means from an infinite population. The best way to solve this is to use the CENTRAL LIMIT THEOREM.
The government of a particular country reports its literacy rate as 52%. A nongovernmental organization believes it to be less. The organization takes a random sample of 600 inhabitants and obtains a literacy rate of 42%. Perform the relevant test at the 0.5% (one-half of 1%) level of significance. a) Draw and state the rejection region in interval notation. b) State the test statistic and decsion
Isle Royale, an island in Lake Superior, has provided an important study site of wolves and their prey. Of special interest is the study of the number of moose killed by wolves. In the period from 1958 to 1974, there were 296 moose deaths identified as wolf kills. The age distribution of the kills is as follows. Age of Moose in Years Number Killed by Wolves Calf (0.5 yr)1-56-1011-1516-20 1105074575 Consider all ages in a class equal to the class midpoint. Find the expected age of a moose killed by a wolf and the standard deviation of the ages. (Round your answers to two decimal places.)
A chi-square distribution with 8 degrees of freedom is a graphed below. The region under the curve to the right of x2-0.05 is shaded . The area of this region is 0.05.
Your hypothesis test for a mean with n = 18 has a two-tailed critical region. The test statistic is tt = -1.38. Find the p-value accurate to 2 decimal places.
The age of children in kindergarten on the first day of school is uniformly distributed between 4.88 and 5.94 years old. A first time kindergarten child is selected at random. Round answers to 4 decimal places if possible. If such a child is at the 87th percentile, how old is that child? ____ years old.
19. Beer Consumption. In the Global Status Report on Alcoholand Health 2014, the World Health Organization has provided thepercentage of beer consumption in a 44 Asian and European countries. （picture） a. Identify the classes for grouping these data, using limit groupingwith classes of equal width 9.1 and a first class of 9.5–18.5.b. Identify the class marks of the classes found in part (a).c. Construct frequency and relative-frequency distributions of thebeer consumption based on your classes obtained in part (a).d. Draw a frequency histogram for beer consumption based on yourgrouping in part (a).e. Classify the shape of the distribution of beer consumption for thegiven 44 countries both generally and specifically.
Construct a frequency table. Consider the scores of 50 Grade 12 students in Physics exam. Construct a frequency distribution and compute the indicated positions using Table 1 and Table 2. The lowest value is the first lower class limit of Table 2.Number of Classes k: 2k ≥ n k=_____ Class interval or width C= Range/K=________
PROBABILITY DISTRIBUTIONS DISCRETE AND CONTINUOUS A calibration study needs to be conducted to see if the readings on 15 test machines are giving similar results. In how many ways can 5 of the 15 machines be selected for the initial investigation?

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Ages Number of students 15-18 3 19-22 4 23-26 2 27-30 7 31-34 2 35-38 8 Based on the frequency distribution above, find the relative frequency for the class with lower class limit 27 Relative Frequency = ___%