2,5002,3002,1001,9001,700-1,500$1,500$1,400$1,300$1,200$1,100$1,000$900$800112233445566WC FrequenLinear TrendWC SeverityLinear Trend The graphs above show the<>of frequ

The term, "loss severity," can apply to any type of insurance loss.Here severity refers to the…

Answered: 2,500 2,300 2,100 1,900 1,700- 1,500…

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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4.25
Formulating directional and nondirectional hypotheses David McCandless, Lee Byron, and their team scanned more than 10,000 Facebook status updates and set out to learn more about the timing of relationship breakups. They found that there was a peak in breakups on Valentine’s Day and Mondays with a dip on Christmas Day. [Source: McCandless, D. (July 2010). The beauty of data visualization. TEDGlobal talks.] Suppose you are a researcher. You conduct a hypothesis test to determine whether the mean number of breakups on Wednesdays is greater than the mean number of daily breakups. Assume that the mean number of daily breakups is 10.3 breakups (the population mean). You obtain a sample of 10,000 Facebook status updates, which yields a sample mean of M = 11.4 breakups. Let μ denote the mean number of breakups on Wednesdays. Formulate your null and alternative hypotheses by selecting the appropriate values in the blue dropdown menus that follow.
11
Student Gender Hours online/week Friends1 female 12 1102 male 5 2503 female 6 2404 female 2 505 male 4 1206 female 5 607 female 8 3408 female 7 1709 male 4 5010 female 6 8011 female 4 15012 male 8 43013 male 6 15014 male 3 20015 female 12 38016 female 4 5017 male 6 18018 male 10 45019 female 5 7020 male 7 12021 female 4 280 The mean for the number of hours online per week is? (Type an integer or a decimal rounded to two decimal places as needed.)
We will rank the y-values of the following data set: x y -1 0.6 -0.5 -5.2 1.7 6 2.6 7.2 3.2 11.6 5.1 15.3 6.7 7.7 8.8 17.1 9.4 22.4 10.1 13.8 Fill in the following table: x y x-rank y-rank -1 0.6 1 -0.5 -5.2 2 1.7 6 3 2.6 7.2 4 3.2 11.6 5 5.1 15.3 6 6.7 7.7 7 8.8 17.1 8 9.4 22.4 9 10.1 13.8 10
We will rank the y-values of the following data set: x y -5 2.8 -2.9 -1.7 -1.2 3.9 0 2.7 1.3 -6.6 2.2 -6.9 3.3 5.9 Fill in the following table: x y x-rank y-rank -5 2.8 1 -2.9 -1.7 2 -1.2 3.9 3 0 2.7 4 1.3 -6.6 5 2.2 -6.9 6 3.3 5.9 7
a. Obtain the linear trend equation for the following data on new checking accounts at Fair Savings Bank and use it to predict expected new checking accounts for periods 16 through 19. (Round your intermediate calculations and final answers to 2 deci places.) Period New Accounts Period, New Accounts Period New Accounts 1 2 3 4 Y Y16 Y17 Y18 Y19 200 214 211 220 235 6 7 8 9 10 237 248 250 258 267 11 12 13 14 15 281 275 287 288 316
Activity 3 A property developer analyzed the amount of office space available in 40 office blocks in the CBD of Gobabis. The following floor areas were recorded. 175 150 178 144 182 172 126 143 146 116 182 140 162 155 176 140 165 165 142 165 168 120 160 155 170 162 177 164 158 118 135 162 195 124 135 150 178 190 160 185 Is the data Continuous or discrete Quantitative or qualitative. Nominal, ordinal, ratio or interval scaled? Determine the range of the data. Use Sturges Rule to determine k, the number of classes, also determine the class width and the appropriate class limits. Construct a frequency distribution for the data. Construct a histogram for the data. Interpret your histogram. Construct a frequency polygon and interpret it. Construct a less than ogive for the data. Construct a more than ogive for the data. From your graph what percentage of office blocks has available…
We will rank the y-values of the following data set: x y 3 -7.5 4.3 6.5 4.9 -7.5 6.9 -0.1 8 4.8 9.2 -7.3 10.1 -3 10.8 2.5 11.9 -13.1 Fill in the following table: x y x-rank y-rank 3 -7.5 1 4.3 6.5 2 4.9 -7.5 3 6.9 -0.1 4 8 4.8 5 9.2 -7.3 6 10.1 -3 7 10.8 2.5 8 11.9 -13.1 9
1. (Pie chart question) What is the "average" based on the measures of central tendency? Choose one: -don't know/refused -very confident -not very/at all confident - somewhat confident 2. (Table chart question) Which residual plot indicates a linear best fit? Choose one: -Graph 2 -Graph 1 and 2 -Graph 1
The following frequency distribution gives the credit card debt of bank customers. Debt Frequency $0- $999 100 $1000 $1999 300 $2000 - $2999 1200 $3000 - $3999 1100 $4000 $4999 600 $5000 - $5999 200 Give the class boundaries. $999 O $1999.50, $2999.50, $3999.50, $4999.50 $1999.05, $2999.05, $3999.05, $4999.05 O $1000 « Previous
which trend and would it be negative or postive or neither

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2,500 2,300 2,100 1,900 1,700- 1,500 $1,500 $1,400 $1,300 $1,200 $1,100 $1,000 $900 $800 1 1 2 2 3 3 4 4 5 5 6 6 WC Frequen Linear Trend WC Severity Linear Trend