Which of the following is NOT a normal distribution?a. grades of students in a heterogeneous classb. weights of students in feeding programc. ages of jeepney driversd. heights of Grade 11 studentsWhat does the mean of a normal curve represent?a. skewnessb. height of the curvec. width of the curved. location of the curveWhat does the standard deviation of a normal curve represent?a. height of the curveb. location of the curvec. skewnessd. width of the curve

Given problem Given that Which of the following is NOT a normal distribution ? Ans) grades of…

Answered: Which of the following is NOT a normal…

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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Explain why a distribution with median M=82, mean=71, and standard deviation σ=11 cannot be a normal distribution. Choose the correct answer below. A. The mean is not equal to the median. B. The mean is not equal to the standard distribution. C. The median is not equal to the standard distribution. D. The median is within one standard distribution of the mean.
According to one study, brain weights of men are normally distributed with a mean of 1.10 kg and a standard deviation of 0.12 kg. Use the data to answer parts (a) through (e). Click here to view page 1 of the table of areas under the standard normal curve. Click here to view page 2 of the table of areas under the standard normal curve. a. Determine the sampling distribution of the sample mean for samples of size 3. Interpret your answer in terms of the distribution of all possible sample mean brain weights for samples of three men. The mean of the sample mean is µ, kg. (Type an integer or a decimal. Do not round.) The standard deviation of the sample mean is o, = kg. (Round to four decimal places as needed.) Interpret these answers in context. For the brain weights have a normal distribution with a mean of kg and a standard deviation of kg. (Type integers or decimals rounded to four decimal places as needed.) b. Repeat part (a) for samples of size 12. The mean of the sample mean is µ;…
Assume the average amount of caffeine consumed daily by adults is normally distributed with a mean of 230 mg and a standard deviation of 47 mg. In a random sample of 600 adults, how many consume at least 310 mg of caffeine daily? Click here to view page 1 of the standard normal distribution table. LOADING... Click here to view page 2 of the standard normal distribution table. LOADING... Question content area bottom Part 1 Of the 600 adults, approximately enter your response here adults consume at least 310 mg of caffeine daily.
What are the two parameters that determine the shape of normal distribution? a. Median / Standard deviation b. Median / Interquartile range c. Mean / Standard deviation d. Mode / Variation
In a bell-shaped, normal distribution, a. mode = 0 b. median > mean c. median < mean d. median = mean
A? Thanks
Suppose that a committee is studying whether or not there is waste of time in our judicial system. It is interested in the mean amount of time individuals waste at the courthouse waiting to be called for jury duty. The committee randomly surveyed 81 people who recently served as jurors. The sample mean wait time was 8 hours with a sample standard deviation of 4.6 hours. 1. Which distribution should you use for this problem? Explain your choice. a. The standard Normal distribution should be used because the population standard deviation is known. b. The Student's tt-distribution for 81 degrees of freedom should be used because we do not know the population standard deviation. c. The Student's tt-distribution for 80 degrees of freedom should be used because we do not know the population standard deviation. d. The standard Normal distribution should be used because the sample standard deviation is known.\ 2. Construct a 95% confidence interval for the…
According to the Carnegie unit system, the recommended number of hours students should study per unit is 2. Are statistics students' study hours less than the recommended number of hours per unit? The data show the results of a survey of 13 statistics students who were asked how many hours per unit they studied. Assume a normal distribution for the population. 2.1, 3.4, 1.9, 3, 2.5, 2.6, 0.2, 3.4, 1.2, 1.7, 3, 1, 0.2 What can be concluded at the αα = 0.05 level of significance? For this study, we should use The null and alternative hypotheses would be: H0:H0: H1:H1: The test statistic = (please show your answer to 3 decimal places.) The p-value = (Please show your answer to 4 decimal places.)
According to the Carnegie unit system, the recommended number of hours students should study per unit is 2. Are statistics students' study hours less than the recommended number of hours per unit? The data show the results of a survey of 11 statistics students who were asked how many hours per unit they studied. Assume a normal distribution for the population. 3.2, 0, 0, 0, 3.2, 3.2, 1.1, 0.8, 0.5, 1.3, 3.5 What can be concluded at the a = 0.05 level of significance? a. For this study, we should use b. The null and alternative hypotheses would be: Select an answer Ho: Select an answer O H1: Select an answer O c. The test statistic ? 0 = (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is ? e a f. Based on this, we should Select an answer e the null hypothesis. g. Thus, the final conclusion is that ... The data suggest the populaton mean is significantly less than 2 at a = 0.05, so there is sufficient evidence…
a. (True or False) The weekly consumption of favorite beverages from this survey hasapproximately a normal distribution, explain your decision. b. Based on the histogram, which one is greater: mean or median? Explain why.c. Which summary statistic would be a better representation of the center for this sample:mean or median?
Save In a study on infants, one of the characteristics measured was head circumference. The mean head circumference of 9 infants was 34.9 centimeters (cm). Complete parts (a) through (d) below. Click here to view Page 1 of the table of areas under the standard normal curve. Click here to view Page 2 of the table of areas under the standard normal curve. a. Assuming that head circumferences for infants are normally distributed with standard deviation 2.4 cm, determine a 95% confidence interval for the mean head circumference of all infants. The confidence interval for the mean head circumference of all infants is from cm to decimal place as needed.) cm. (Round to one

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