The Nielson Home Technology Report provided information about home technology and cell phone usage. The following data are the hours of daily cellphone usage for a random sample of college students.HoursofRelativeUsage Frequency Frequency0.0->2.953.0-5.9286.0-8.989.0->11.9612.0-14.93Find the relative frequency of college students who use their cell phone between 12.0 and 14.9 hours.a.0.30b.0.12Oc. 0.06d.0.03

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Answered: The Nielson Home Technology Report…

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 marketing firm is doing research for an internet-based company. It wants to appeal to the age group of people who spend the most money online. The company wants to know if there is a difference in the mean amount of money people spend per morith on Internet purchases depending on their age bracket. The marketing firm looked at two age groups, 18-24 years and 25-30 years, and collected the data shown in the following table. Let Population 1 be the amount of money spent per month on internet purchases by people in the 18-24 age bracket and Population 2 be the amount of money spent per month on internet purchases by people in the 25-30 age bracket. Assume that the population variances are not the same. Internet Spending per Month 18-24 Years Answer Mean Amount Spent Standard Deviation Sample Size Step 1 of 2: Construct a 99 % confidence interval for the true difference between the mean amounts of money per month that people in these two age groups spend on Internet purchases. Round the…
Consider the following data representing the price of refrigerators (in dollars). 1260, 1446, 1106, 1269, 1443, 1424, 1118, 1132, 1177, 1115, 1156, 1262, 1215, 1236, 1243, 1169, 1437, 1191, 1401, 1439, 1365 Answer Class 1093-1152 1153-1212 1213-1272 1273-1332 1333-1392 1393-1452 Price of Refrigerators (in Dollars) Frequency Relative Frequency Cumulative Frequency Step 3 of 4: Calculate the relative frequency of the sixth class. Determine your answer as a simplified fraction. Tables Keybe Previous
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