A certain chromosome defect occurs in only 1 in 220 adult Caucasian males. A random sample of n = 100 adult Caucasian males is to be obtained.(a) What is the mean value of the sample proportion p, and what is the standard deviation of the sample proportion? (Round your answers to four decimal places.)meanstandard deviation(b) Does have approximately a normal distribution in this case? Explain. (Select all that apply.)the sampling distribution of p is approximately normalthe sampling distribution of p is not approximately normalis less than 10npnp equals 10Onp is greater than 10On(1 p) is less than 10O n(1 p) equals 10On(1 p) is greater than 10(c) What is the smallest value of n for which the sampling distribution of p is approximately normal? (Round your answer to the nearest whole number.)adult Caucasian malesn =

Population proportion, Sample size, n=100

Answered: A certain chromosome defect occurs in…

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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To describe a normal distrribution, whicch two of the following are absolutely necesssary? Group of answer choices the standard deviation (or variance) of the distribution the median of the distribution the shape of the distribution the maxmium and minimum of the distribution the mean of the distributionn the size of the distribution
31
When asked: "What is the distribution of X ? X ~ N(___,___)." This notation is referring to N, a normal distribution, with the mean given in the first space and the standard deviation in the second space. Remember that the standard deviation of the sample means is different from the population standard deviation. The lengths of adult males' hands are normally distributed with mean 190 mm and standard deviation 7 mm. Suppose that 11 individuals are randomly chosen. Round final answers to 4 decimal places. a. What is the distribution of x? x N( b. For the group of 11, find the probability that the average hand length is more than 189. c. Find the first quartile for the average adult male hand length for this sample size. d. For part b), is the assumption that the distribution is normal necessary? Yes No
In general, the standard error of the sampling distribution is __________the standard deviation from the related population distribution.. Group of answer choices unrelated to smaller than larger than equal to
D, e, f and h
For the population proportion is… (select answer) Skewed right Uniform Approximately normal Skewed left With the… (select answer) True population proportion True population mean True population standard deviation As it’s… (select answer) Proportion Mean Standard deviation
Use the normal distribution to the right to answer the questions. Standardized Test Composite Scores (a) What percent of the scores are less than 19? (b) Out of 1500 randomly selected scores, about how many would be expected to be greater than 21? µ = 20.7 o = 5.4 19 21 Score
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Standardized tests: In a particular year, the mean score on the ACT test was 22.3 and the standard deviation was 5.3. The mean score on the SAT mathematics test was 504 and the standard deviation was 100. The distributions of both scores were approximately bell-shaped. Round the answers to at least two decimal places. Find the z-score for an ACT score of 30.
Which of the following are true? There is more than one correct answer.
Only D & E
Listed below are the numbers of hurricanes that occurred in each year in a certain region. The data are listed in order by year. Find the range, variance, and standard deviation for the given sample data. Include appropriate units in the results. What important feature of the data is not revealed by any of the measures of variation? 12 The range of the sample data is (Round to one decimal place as needed.) The standard deviation of the sample data is (Round to one decimal place as needed.) 20 2 The variance of the sample data is (Round to one decimal place as needed.) What important feature of the data is not revealed through the different measures of variation? 55 18 A. The measures of variation do not reveal the difference between the largest number of hurricanes and the smallest number of hurricanes in the data. OB. The measures of variation reveal no information about the scale of the data. ⒸC. The measures of variation reveal nothing about the pattern over time. D. The measures of…

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