Answered: sample of 350 Mathematicians is…

sample of 350 Mathematicians is selected and several variables are recorded. Which of the following statements is correct

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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Choose whether these data are Discrete or Continuous:a. Number of bottles are used each year ( )b. Weight of 3 years old babies ( )c. Velocity of cars on the highway ( )d. The number of students with long hair ( )e. The number of brown-eye monkeys at the zoo. ( )Choose whether these data are Nominal, Ordinal, Interval or Ratio:f. Speed of a car ( )g. Degree of agreement or disagreement of respondents about the appropriateness of a television program for children below 10 years old ( )h. Body temperature of dengue patients in Hospital X ( )i. Type of languages ( )j. Socioeconomic status of residents of Surabaya ( )Tell whether the variable will yield quantitative or qualitative data.k. Employee turnover rate ( )l. Gross domestic product ( )m. Civil status ( )
Which one of the following statements is related to qualitative variable? a. The water capacity of a water tanker is 2000 liters b. Number of cars sold by a showroom in a day Classification of students in a college based on their intelligence Od. The profit of a bákery in one month is 1200 OMR Who defined Statistics as Dumerical statement.of facts in any department of other search
Answer d & e only
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Five students taking a Business Statistics module at MANCOSA were asked to provide an example of a variable they have encountered in their day-to-day life. Their responses are as follows: Student Variable Lungani Nsika Thembekile Mduduzi The body temperature of a patient diagnosed with COVID-19 The price of a technology company stock on the NASDAQ The age of his bull mastiff The number of female students in Mduduzi's Python class Which student provided a variable which does not have a true zero? A. Nsika B. Lingani and Nsika C. Thembekile and Mduduzi D. Lungani
A social media app is conducting a study on the amount of time users spend on the app. They collect the following variables. Age Years: How old they are in years? Income: Monthly Income Location: What country do they live in? Device: Do they use an iPhone, Samsung, other? Service: Who provides their mobile phone service? For example: T-Mobile, At&t, Verizon, ect Hours: How many hours do they spend on the app per week. A) Which variable could the research construct a one proportion z-interval for? B) The social media app just launched a new algorithm that suggest content in an effort to increase the amount of time the user spends on the app. The researchers want to use the survey results to see if there is statistically significant evidence that on average users spend more than 10 hours per week on the social media app. The researchers found in their sample of 44 users, the mean hours spent on the app is 10.5 hours with a standard deviation of 5.675 hours. Which type of hypothesis test…
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Some research situations are summarized below. For each situation, identify all variables.Then, for each variable, note the level of measurement AND whether it is an independent or dependent variable. a.Ahealth researcher is interested in studying patient compliance (whether or not patients take the medicine their doctor prescribes). She surveys 800 diabetic patients, and finds compliance to be linked to patient age, education, gender, and socioeconomic status. b. A market researcher is hired by Target to see how customers buying habits have changed before and after COVID. The researcher studies how much each customer spent (in $s), how frequently they visited the website each month, how frequently they visited the store each month. They report that, since March, customers are spending less, visiting the website more frequently, and shopping in person less frequently.