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 width. (Enter without a dollar sign) $999 O $1999.50, $2999.50, $3999.50, $4999.50 O $1,000 $4000

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 width. (Enter without a dollar sign) $999 O $1999.50, $2999.50, $3999.50, $4999.50 O $1,000 $4000

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 1MCQ

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Abdomen data: 83.0, 87.9, 85.2, 88.6, 77.1, 85.3, 100.0, 94.4, 81.9, 88.5, 82.5, 100.5, 76.5, 86.4, 90.7, 83.6, 106.8, 77.6, 102.9, 90.9, 79.7, 73.9, 79.1, 72.8, 88.2, 100.1, 89.6, 95.9, 98.8, 76.3, 83.5 105.0, 90.8, 83.5, 84.5 101.8, 76.6, 76.4, 88.7, 92.4, 81.2, 91.6, 97.5, 80.0, 88.7, 100.5, 95.6, 92.1, 96.4, 74.6, 83.4, 106.0, 96.4, 92.8, 95.1, 90.4, 100.4, 115.9, 90.8, 81.9, 75.0, 90.3, 90.3, 108.8, 79.4, 83.2, 110.3, 91.6, 92.7, 76.0, 79.5, 86.1, 104.5, 104.6 Assume that the abdomen circumference of males have a distribution that isapproximately bell-shaped. Using the mean (= 89.7) and standard deviation (=9.9) as estimates of the population mean and standard deviation, a. Construct a diagram, using the Empirical Rule, to illustrate the percentagesof data values in each of the 8 sections that diagram includes.b. Between what two measurements will about 95% of the abdomencircumferences fall?
Use Excel2. The monthly issues of the Journal of Finance are available on the Internet. The table below shows the number of times an issue was downloaded over the last 33 months. Suppose you wish to summarize the number of downloads with a frequency distribution. 312 2,753 2,595 6,057 7,624 6,624 6,362 6,575 7,760 7,085 7,272 5,967 5,256 6,160 6,238 6,709 7,193 5,631 6,490 6,682 7,829 7,091 6,871 6,230 7,253 5,507 5,676 6,974 6,915 4,999 5,689 6,143 7,086 a. Find the mean, median, mode, minimum and maximum values as well as variance, standard deviation, range, b. find Q1,Q2,Q3 and if there are any outliers c. Find the 35th percentile and the 90th percentile of the data
A website that reviews recent movies lists 6 five-star films (the highest rating), 17 four-star films, 12 three-star films, 9 two-star films, and 6 one-star films. Make a frequency table for the data set. Include columns for relative frequency and cumulative frequency. Complete the table. (Type integers or decimals rounded to the nearest tenth as needed.) Stars Frequency Relative frequency Cumulative frequency 5 %
* Question Completion Status: O b. ($10,098.9004, $35,228.6996) O C. None of the answers is correct O d. ($10.0989/salesperson, $35.2287/salesperson) O e. ($100,989.0040/salesperson, $352,286.9960/salesperson) QUESTION 3 Suppose you wish to see if there is a relationship between the price (units=$1000) and the rating (units=10 points) of laptop computers tested by Consumer Reports. A regression analysis on 15 computers revealed Exj = 21.00, Ex = 33.30, Eyj = 119.40, Ey²; = 956.14, and Ex¡y = 171.57. What is the interpretation of B1? O a. For an increase of 10 points in the Consumer Report rating, the mean price of a laptop increases by $771.5185. O b. For an increase of $1000 in price, the mean Consumer Report rating increases by 11.3077 points. O C. For an increase of 10 points in the Consumer Report rating, the mean price of a laptop increases by $113.0768. O d. For an increase of $1000 in price, the mean Consumer Report rating increases by 1.1308 points. Oe. ·None of the answers is…
Select one answer. In 1912, the RMS Titanic, a British passenger ship, sank in the North Atlantic Ocean after colliding with an iceberg. 10 points Historians do not know the exact passenger list, so the death toll is estimated. Here is data from the 2201 passengers on board, by cabin class. First Second Third Crew Row Class Class Class totals Died 122 167 528 673 1490 Survived 203 118 178 212 711 Column 325 285 706 885 2201 Totals Wikipedia, RMS Titanic. (2015). Retrieved from: http://en.wikipedia.org/wiki/RMS_Titanic#Survivors_and_victims Which proportions are most useful in analyzing the relationship between passenger class and surviving the Titanic? A. O 122 / 325 and 203 / 325 B. O 203 / 325 and 528 / 706 C. O 203 / 325 and 178 /706 D. O 203 / 711 and 178 / 711
A website that reviews recent movies lists 4 five-star films (the highest rating), 13 four-star films, 17 three-star films, 10 two-star films, and 6 one-star films. Make a frequency table for the data set. Include columns for relative frequency and cumulative frequency.Complete the table.(Type integers or decimals rounded to the nearest tenth as needed.)Stars 5FrequencyRelative frequencyCumulative frequency
What is the difference between a frequency histogram and a relative frequency histogram? A histogram uses numbers to record how many observations are in a data set, and a relative histogram uses categories. A histogram uses categories to record how many observations are in a data set, and a relative histogram uses counts. A histogram uses counts to record how many observations are in a data set, and a relative histogram uses proportions. A histogram uses proportions to record how many observations are in a data set, and a relative histogram uses counts.
Use the following table: $386 $328 $265 $428 $245 446 254 587 326 345 417 326 312 363 385 Prepare a frequency distribution from the above weekly salaries of teachers at Pikes Peak Community College. Use the following intervals: Salaries. Frequency $200 - $299.99. ?? 300 - 399.99. ?? 400 - 499.99. ?? 500 - 599.99. ??
x1: New England Crime Rate 3.3, 3.7, 4.0, 4.1, 3.3, 4.1, 1.8, 4.8, 1.9, 3.1 x2: Rocky Mountain Crime Rate 3.5, 4.3, 4.7, 5.3, 3.3, 4.8, 3.5, 2.4, 3.1, 3.5, 5.2,2.8 Assume that the crime rate distribution is approximately normal in both regions. Use a calculator to calculate x1, s1, x2, and s2. (Round your answers to four decimal places.) x1: s1: x2: s2: What is the value of the sample test statistic? Compute the corresponding z or t-value as appropriate. (Test the difference ?1 − ?2. Do not use rounded values. Round your answer to three decimal places.) Find a 98% confidence interval for ?1 − ?2. (Round your answers to two decimal places.) lower limit: _________ upper limit: _________
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