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## StatisticswithApplications

by: Chyna Hettinger

10

0

3

# StatisticswithApplications STA120

Chyna Hettinger
CSU Pomona
GPA 3.83

Staff

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COURSE
PROF.
Staff
TYPE
Class Notes
PAGES
3
WORDS
KARMA
25 ?

## Popular in Statistics

This 3 page Class Notes was uploaded by Chyna Hettinger on Saturday October 3, 2015. The Class Notes belongs to STA120 at California State Polytechnic University taught by Staff in Fall. Since its upload, it has received 10 views. For similar materials see /class/218379/sta120-california-state-polytechnic-university in Statistics at California State Polytechnic University.

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Date Created: 10/03/15
Stats 120 Practice Test 1 Determine whether the given value is a sample statistic or a parameter 1 A sample of students is selected and the average mean number of textbooks purchased this semester is 42 In a study of all 2223 passengers aboard the Titanic it was found that 706 survived when it sank Determine whether the given values are from discrete or continuous data set 3 A statistics student obtains sample data and nds that the mean weight of cars in the sample is 3126 lb When 19218 gas masks from branches of the US military were tested it was found that 10322 of them were defective The following data give the political party of each of the rst 30 US presidents In the data D stands for democrat DR for Democratic Republican F for Federalist R for Republican and W for Whig F F DR DR DR DR D D W W D W W D D R D R R R R D R D R R R D R R a Prepare a frequency distribution table for these data b Calculate the relative frequency and percentage distributions c Draw a bar graph for the relative frequency distributions and a pie chart for the percentage distribution d What percentage of these presidents were Whigs Suppose the lowest value of a data set is 40 and the largest is 102 Complete the following table Use 7 classes Class Limit Class Boundaries Midpoint 397 397 392 What is the class width Given the following data 34 44 31 52 41 47 38 35 32 39 28 24 46 41 49 53 57 33 27 37 30 27 45 38 34 46 36 30 47 50 Create a stemandleaf display 8 Data Set Weight of bears in lbs 80 344 416 348 166 220 262 360 204 144 332 34 140 180 105 166 204 26 120 436 125 132 90 40 220 46 154 116 182 150 65 356 316 94 86 150 270 202 202 79 a Prepare a frequency distribution with 6 classes b Calculate the relative frequencies and percentages for all classes c Create a frequency histogram and draw the polygon 9 Using the data set above create the ogive 10 Listed below are ages of motorcyclists when they were fatally injured in traffic crashes Create a boxandwhisker plot 17 38 27 14 18 34 16 42 28 24 40 20 23 31 37 21 30 25 11 Find the mean variance and standard deviation for each of the two samples then compare the two sets of results Mickey D vs Jack When investigating times required for drivethrough service the following results are obtained McDonald s 287 128 92 267 176 240 192 118 153 254 193 136 Jackinthe box 190 229 74 377 300 481 428 255 328 270 109 109 12 The blood alcohol concentrations of a sample of drivers involved in fatal crashes and then convicted with jail sentences are given below Find the mean mode and median 027 017 017 016 013 024 029 024 014 016 012 016 021 017 018 13 Given the data set above find the following P P and Pgo 10 75 Find the mean and standard deviation for the following distributions 14 Speed Frequency 15 Outcome Frequency 4245 25 1 27 4649 14 2 31 5053 7 3 42 5457 3 4 40 5 861 1 5 28 6 32 15 If the heights of women have amean of 636 inches and a standard deviation of 25 inches if the data set is not a bellshaped distribution what can you conclude about the percentage of women between 586 inches and 686 inches 16 Suppose the data set in 15 is a bellshaped distribution what is the approximate percentage of women between 611 in and 661 in 561 in and 711 in Challenge Approximate the percentage of women between 611 in and 711 in Chapter 4 125 127 131 133 135 137 147

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