Suppose you have a data set about whether a person received a new drug or a sugar pill and the number of hours of deep sleep.a. Which of the sources of data best describe the data set?b. Is the data set based on a sample or a population?...a. Choose the correct answer below.O A. These data are results of an observational study.O B. These data are collected by ongoing business activities.OC. These data are outcomes of a designed experiment.O D. These data are responses from a survey.O E. These data are distributed by an organization.b. Choose the correct answer below.O A. The data was taken based on a population.O B. The data was taken based on a sample.O C. There is no way to know whether the data was taken based on a sample or a population.

Here, the data set collects data about whether a person received a new drug or a sugar pill and the…

Answered: Suppose you have a data set about…

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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Indicate whether each of the given statements could apply to a dataset consisting of 500 different values. a. The 20th percentile is less than the 30th b. The median is greater than the first quartile. c. The mean is equal to the mode. d. The range is less than zero. e. There are multiple means.
1. A researcher is interested in choice and decisions. He looks at what people buyfor lunch in a university cafeteria. Which of the following best describes the data hecollects? a. He collects favorite lunch meal which is qualitative. He also collects data on how often each person buy that meal, which is also qualitative data. b. He collects how often participants buy their favorite meal, and this is a form of quantitative data.c. He asks participants to name their most frequently purchased meal, and this is qualitative data.d. He asks participants to tell him how many times a week they skip lunch because of their work, and this is qualitative data.
Health coverage, frequencies. The Behavioral Risk Factor Surveillance System (BRFSS) is an annual telephone survey designed to identify risk factors in the adult population and report emerging health trends. The following table summarizes two variables for the respondents: health status and health coverage, which describes whether each respondent had health insurance. Health No Coverage Yes Total Excellent 459 4,198 4,657 Very good Health Status Good Fair Poor Total 385 99 2,524 727 854 6,245 4,821 1,634 578 17,476 6,972 5,675 2,019 677 20,000 If one individual is drawn at random, what is the probability that the respondent has excellent health or doesn't have health coverage? Round your answer to five decimal places.
Two sections of statistics are offered, the first at 8 a.m. and the second at 10 a.m. The 8 a.m. section has 25 women, and the 10 a.m. section has 15 women. A student claims this is evidence that women prefer earlier statistics classes than men do. What information is missing that might contradict this claim? Question content area bottom Part 1 Choose the best answer below. A. The professor may be female in one class and male in the other, which could affect the female students' class preference. B. The percentage of female students in the two classes is unknown. There may be more females in the 8 a.m. because there are more students in the 8 a.m. class than the 10 a.m. class. This claim could be true only if the classes were the same size. C. The age and class standing of the students is unknown. Older female students may prefer later classes, so it may be only younger female students who prefer earlier classes. D. No information is…
Use the given data to complete parts (a) and (b) below. y 2.2 3.8 4 1.5 2.9 3.7 4.6 4.9 (b) Draw a scatter diagram of the data with the additional data point (10.4,9.3). Choose the correct answer below. OA. OB. Oc. OD 124 12- 12- 12 8- 8- 8- 4- 4.
11 Find the mode(s) for the following group of data items. 4.3, 6.5, 7.7, 5.4, 6.9, 6.9, 5.9, 7.4, 6.3, 5.2, 5.2 Select the correct choice below and, if necessary, fill in the answer box within your choice. A.The mode(s) is/are ______. ��(Use a comma to separate answers as needed.) B.There is no mode.
1. EA Sports is interested in how much money, on average, their customers spend on in- game items. Using their records, they draw a sample of 10,000 customers and calculate each customer's average spending on in-game items. A. Identify the population, sample, parameter, statistic, variable, and data for this example. Population Sample I. II. III. parameter
Which of the following statements about in-control and out-of-control processes is (are) true? I. The mean chart and range chart always show that processes are in control. II. A mean chart can be in control, while a range chart can be out of control. III. A mean chart can be out of control, while a range chart can be in control A. I only B. II only C. II and III D. I and III
Statistics. Grouped Data. I would like to ask if how to answer these question. I really need to lean thank you!
Several studies showed that after eating a low-fat cereal for two meals a day, subjects had lost some weight.A cereal companyfinanced this research. Identify what is wrong. Choose the correct answer below. A. Since the research is composed of voluntary response samples, there may be key data points missing. B. The data used in the studies is not reliable because it was not measured by the administrator. C. It is questionable that the sponsor is a cereal company because this sponsor can be greatly affected by the conclusion. D. It is not possible to take accurate measurements.
C2. Using the information listed below, explore the educational attainment of GSS 2018 respondents. Frequencies and percentages are reported by sex of respondent. a. Calculate the IQR for both groups. What do the IQRS reveal about the degree of diversity for males and females? b. What is the limitation to applying IQR to ordinal data? Highest Educational Degree Males Females Less than high school 63 80 12.9% 12.7% High school graduate 256 296 52.5% 47.1% Junior college 30 72 6.1% 11.4% Bachelor's degree 90 111 18.4% 17.6% Graduate degree 49 70 10% 11.1% 488 629 Total 100% 100% CHAPTER 4 MEASURES C

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