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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A recent report stated that in 1990, there were approximately 9.7 million employment opportunities in a Science, Technology, Engineering or Mathematics (STEM) related field. There is a reported 17.3 million positions available in a STEM related field in 2019. What is the relative change in the number of STEM positions available from 1990 to 2019? A. 7.6% B. 56.1% C. 43.9% D. 78.4%
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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hello I just need help with the 3rd and fourth part
The monthly rents (in dollars) paid by 7 people are given below. (Note that these are already ordered from least to greatest.) 790, 930, 1015, 1025, 1060, 1075, 1098 Send data to calculator Suppose that one of the people moves. His rent changes from $790 to $720. Answer the following. (a) What happens to the median? O It decreases by $ O It increases by O It stays the same. (b) What happens to the mean? O It decreases by $ It increases by O It stays the same.
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Here is a set of data. 27 231 276 283 299 308 321 407 567 584 587 625 737 830 966 974 Identify the 5 number summary (min, Q1, median, Q3, max)
Which of the following must be entries from the original data set? the mode the range the third quartile the median the maximum
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