RelativeHeights of adult males are known to have a normaldistribution. A researcher claims to have randomly selectedadult males and measured their heights with the resultingrelative frequency distribution as shown here. Identify twomajor flaws with these results.Height (cm) Frequency D130–14423%145–15924%160–17421%175–18926%190–20428%.....Select all that apply.A. The relative frequencies were recorded as percents instead of counts.B. All of the relative frequencies appear to be roughly the same. If they are from a normal distribution, they should start low, reach a maximum, and thendecrease.C. All of the relative frequencies are different. If they are from a normal distribution, they should all be exactly the same.D. The classes do not allow for the possibility that an adult male could be between 144 cm and 145 cm tall, or between 159 cm and 160 cm tall, and so on.E. The sum of the relative frequencies is 122%, but it should be 100%, with a small possible round-off error.F.The classes do not allow for the possibility that an adult male could be less than 130 cm tall or greater than 204 cm tall.

Answered: Image /qna-images/answer/c3abc782-d3f1-4c3d-a7dd-b039ee55f9be.jpg

Answered: Heights of adult males are known to…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Exhibit 2 The management of a department store is interested in estimating the difference between the mean credit purchase of customers using the stores credit card versus those customers using a national major credit card. You are given the following information: STORES CARD MAJOR CREDIT CARD Sample Size 75 52 Sample Mean $185 $150 Sample Std Dev $12 $8 Q21a = Refer to Exhibit 2. A Point estimate for the difference between the mean purchases of the users of the two credit cards is:
For a certain type of computers, the length of time between charges of the battery is normally distributed with a mean of 62 hours and a standard deviation of 11 hours. John owns one of these computers and wants to know the number of hours when the computer would have 12% of its battery life left. Sketch the region in question. Write a sentence describing what your answer represents about the problem's specefics.
Compare the appropriate measures of center and variability for the two sets of data. Data Set A has a higher mean value of 8.8, and Data Set B has a lower range value of 8. Data Set A has a higher median value of 9, and Data Set B has a lower IQR value of 2.5. Data Set A has a lower mean value of 8.8, and Data Set B has a higher range value of 8. Data Set A has a lower median value of 9, and Data Set B has a higher IQR value of 8.
AFDA Main Ideas: Module 9 Review 1) The measures of center: 2) Measures of spread: 3). When describing a data set, the mean is used with used with 4) Z-scores are used to compare data that is 5). What is the formula for finding the z-score? 14 6). The z-score of the mean is always z = 7). What are the characteristics of a normal distribution? and and and the median is 8). What two characteristics make a distribution go from "normal" to "standard normal?"
The heights of adult females are normally distributed. If you were to construct a histogram of 40 randomly selected women, what shape would the histogram of those heights have and what pattern would you expect in a normal quantile plot of these data? A) The histogram would be approximately bell-shaped, and the normal quantile plot would have data points have follow a straight-line pattern. B) The histogram would by approximately bell-shaped, and the normal quantile plot would have data points that would be bell-shaped. C) The histogram would by non-symmetric, and the normal quantile plot would have data points that would be non-linear. D) The histogram would by approximately bell-shaped, and the normal quantile plot would have data points that would be non-linear.
Use a z-table such as https://www.math.arizona.edu/~rsims/ma464/standardnormaltable.pdf or an online calculator such as http://onlinestatbook.com/2/calculators/normal_dist.html to answer the following question: This question again refers to the study on blood pressure which has a normally-distributed set of blood pressures with a mean of 120.1 mmHg and a standard deviation of 15.1 mmHg. If you picked a member of the population at random, would it be more likely that you randomly select someone that: Has a blood pressure between 104 mmHg and 114 mmHg, or Has a blood pressure between 124 mmHg and 134 mmHg? Show any values calculated and explain your reasoning in the space provided below.
Suppose the distribution of heights of a group of 300 children is normal, with a mean of 150 centimeters and a standard deviation of 12 centimeters. About how many of these children are taller than 162 centimeters? children
It seems that of engaged women buy a wedding dress at least one size smaller than their current size. Why? Cornell researchers reported an alarming tendency for women who are engaged to sometimes attempt to lose an unhealthy amount of weight prior to their wedding (Neighbors & Sobal, 2008). The researchers found that engaged women weighed, on average, 152.1 pounds. The average ideal wedding weight reported by 227 women was 136.0 pounds. The data below represent the fictional weights of eight women on the day they bought their wedding dress and on the day they got married. Did women lose weight for their wedding day? Dress purchase Wedding day 163 158 144 139 151 150 120 118 136 132 158 152 155 150 145 146 Conduct the six steps of hypothesis testing using a one-tailed test and an alpha level of 0.05. Report the test statistic in APA format. Calculate the confidence interval for the paired-samples t test that you conducted in part (a). Compare the…
Suppose a data set has size 10. Indicate which of the following would change if the maximum of the data set was replaced with a larger value. (a)First quartile (b)Median (c)Range (d)Mean
Explain the concept of Range Restriction, and the issue it may pose to correlation statistics

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS

Heights of adult males are known to have a normal distribution. A researcher claims to have randomly selected adult males and measured their heights with the resulting relative frequency distribution as shown here. Identify two major flaws with these results.