A private college advertised that last year their freshman students, on average, had a score of 1100 on thecollege entrance exam. Assuming that average refers to the mean, which of the following claims must betrue based on this information?Note: More than one statement could be true. If none of the statements is true, mark the appropriate box.OLast year all of their freshman students had a scoreof 1100 or above on the exam.Next year some of their freshman students will havea score of at least 1100 on the exam.Last year, the number of their freshman studentswho had a score of more than 1100 on the exam wasequal to the number of their freshman students whohad a score of less than 1100 on the exam.Last year some of their freshman students had ascore of more than 950 on the exam.Last year at least one of their freshman studentshad a score of exactly 1100 on the exam.None of the above statements are true.X

A private college advertised that last year their freshman students, on average, had a score of 1100…

Answered: A private college advertised that last…

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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A weight-loss clinic advertised that last month its patients, on average, lost 7 lbs. Assuming that average refers to the mean, which of the following claims must be true based on this information? Note: More than one statement could be true. If none of the statements is true, mark the appropriate box. Last month at least one of their patients lost 7 lbs or more. This month at least one of their patients will lose at least 7 lbs Last month, the number of their clients who lost more than 7 lbs was equal to the number of their clients who lost less than 7 lbs Last month all of their patients lost less than 11 lbs. Last month some of their patients lost exactly 7 lbs. None of the above statements is true.
A researcher conducts a study comparing anxiety levels in teens based on their social media usage. Teens with higher scores on the anxiety measure are considered more anxious. Below is a table made from their results. Briefly interpret the results by explaining both descriptive and inferential statistics identified.
You saw back in Chapter 2 that the mean, median, mode, and midrange are used to indicate where data is centered in a data set, or in other words what a typical value in the set is. A question that is often asked is, "If they're all supposed to do the same thing, why is there more than one?" Isn't one enough? In this exercise, you will be given two small sets of data. For each set, a. find the mean, median, mode and midrange b. in your opinion, decide which of the measures BEST represents all the values in the set (best indicates a typical value), and which one does this the WORST. c. post your responses and justify them by explaining why Don't forget to respond to at least one of your classmate's posts. With this exercise, "more is better." I'll elaborate after the deadline. • Set A: the salaries of 10 employees at a company (in thousands of dollars): 50, 50, 50, 50, 50, 50, 50, 50, 50, 500 • Set B: the grades of 9 students on an exam: 20, 25, 30, 35, 40, 45, 100, 100, 100
Solve it on the paper.
A private college advertised that last year their freshman students, on average, had a score of 1180 on the college entrance exam. Assuming that average refers to the mean, which of the following claims must be true based on this information? Note: More than one statement could be true. If none of the statements is true, mark the appropriate box. Last year at least one of their freshman students had a score of at least 1180 on the exam. Last year, the number of their freshman students who had a score of 1180 or below on the exam was equal to the number of their freshman students who had a score of 1180 or above on the exam. Last year all of their freshman students had a score of more than 950 on the exam. Last year at least one of their freshman students had a score of exactly 1180 on the exam. Next year some of their freshman students will have a score of at least 1180 on the exam. None of the above statements are true.
These next questions come after part B. Which of the statements correctly describes the relationship between the mean and median in the histogram of the number of servings of fruit per day claimed by the 7474 seventeen‑year‑old girls? A) The mean and median are about equal because the distribution is right‑skewed. B) The mean is larger than the median because the distribution is right‑skewed. C) The median is larger than the mean because the distribution is right‑skewed. D) There is not enough information to tell us about the relationship between the mean and median in the histogram. (c) In general, you cannot find the exact values of median, quartiles, or mean from the histogram. What is special about the histogram of the number of servings of fruit that allows you to do this? Select an answer choice. A) We know exactly how many observations fall in each bin because of the way the bins are constructed. B) The sample size only consists of only 74…
Last year over 7000 students took an entrance exam at a certain state university. Kareem's score was at the 44th percentile. Lella's score was at the 93rd percentile. (a) Which of the following must be true about Kareem's and Leila's scores? Both Kareem and Leila scored higher than the median. O Both Kareem and Lella scored below than the median. O Leila scored higher than Kareem. O Kareem scored higher than Leila. (b) Which of the following must be true about Kareem's score? O About 44% of the students who took the exam scored lower than Kareem. O Kareem got about 44% of the questions correct. O Kareem's score was in the top half of all scores. O Kareem missed 56 questions. Explanation Check X 3 Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center
In Statsville there’s a city-wide speed limit of 30 mph.If you are caught speeding the fine is $100 plus $10 forevery mile per hour you were over the speed limit. Forexample, if you’re ticketed for going 45 mph, your fine is100 + 10145 - 302 = +250. Last month all the driverswho were fined for speeding averaged 42 mph with astandard deviation of 7 mph. What were the mean andstandard deviation of the fines?A) $120 and $70 B) $220 and $7C) $220 and $70 D) $220 and $170E) $420 and $70
A job placement agency advertised that last year its clients, on average, had a starting salary of $39,500 . Assuming that average refers to the mean, which of the following claims must be true based on this information? Note: More than one statement could be true. If none of the statements is true, mark the appropriate box. Last year some of their clients had a starting salary of less than $35,000 . Two years ago some of their clients had a starting salary of at least $39,500 . Last year, the number of their clients who had a starting salary of more than $39,500 was equal to the number of their clients who had a starting salary of less than $39,500 . Last year at least one of their clients had a starting salary of exactly $39,500 . Last year all of their clients had a starting salary of at least $39,500 . None of the above statements are true.
In a city with three high schools, all the ninth graders took a Standardized Test, with these results: Number of ninth graders (Frequency) Mean Test Score High School Glenwood 82 262 Central 92 311 Lincoln 67 168 The city's PR manager, who never took statistics, claimed the mean score of all ninth graders in the city was the average of 82, 92, and 67, whic incorrect. What is the mean score for all ninth graders in the city? Round to one decimal place 80.3. Of course, that is Mean of all ninth grader's scores *
Suppose there are 5 students in a room. The mean age is 19.8 years, and the median age is 19. If the youngest person leaves and is not replaced by another person, what happens to the mean and the median? O The mean and median increase. The mean increases, and the median either increases or stays the same. The mean increases, but it is impossible to determine whether the median increases, decreases, or stays the same. The mean increases, and the median stays the same. The median increases, and the mean either increases or stays the same.
Irondale County has two school districts, Anaconda and Copper Canyon. In the Anaconda School District, the average score of fifth graders on the Iowa Test of Basic Skills (ITBS) was 50. In the Copper Canyon School District, the average ITBS score for 5th graders was 72. Can we conclude that the average score for all fifth graders in Irondale County who took the test is 61, the mean of 50 and 72? If so, explain why. If not, tell what additional information would be needed in order calculate the mean ITBS score for all their fifth graders.

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