Not long ago, a popular car magazine raced a Dodge Viper SRT- 10 on an airport runway to see how fast it could go. They used GPS to record how many seconds the Dodge Viper SRT-10 took to reach different speeds as it accelerated down the track. That data is shown below. time (sec) speed (mph) 4.4 60 9.6 100 12.5 116.8 19.5 142.1 24.1 150 25.6 152.1 31.4 159.7 a) Use logarithmic regression to find a logarithmic function that best fits this data. Round each value to at least three decimal places. y = b) Use logistic regression to find an logistic function that best fits this data. Round each value to at least three decimal places. y =

Not long ago, a popular car magazine raced a Dodge Viper SRT- 10 on an airport runway to see how fast it could go. They used GPS to record how many seconds the Dodge Viper SRT-10 took to reach different speeds as it accelerated down the track. That data is shown below. time (sec) speed (mph) 4.4 60 9.6 100 12.5 116.8 19.5 142.1 24.1 150 25.6 152.1 31.4 159.7 a) Use logarithmic regression to find a logarithmic function that best fits this data. Round each value to at least three decimal places. y = b) Use logistic regression to find an logistic function that best fits this data. Round each value to at least three decimal places. y =

Intermediate Algebra

19th Edition

ISBN:9780998625720

Author:Lynn Marecek

Publisher:Lynn Marecek

Chapter10: Exponential And Logarithmic Functions

Section10.3: Evaluate And Graph Logarithmic Functions

Problem 10.53TI: In 1906, San Francisco experienced an intense earthquake with a magnitude of 7.8 on the Richter...

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Approximately 2 percent of women ages 40-50 have breast cancer. A woman has a 92 percent chance of a positive test from a mammogram given she has breast cancer (a true positive result). A woman has a 15 percent chance of a positive test from a mammogram given she does not have breast cancer (a false positive result). Complete the table below, then answer the questions below the table. Give all answers as decimals to 4 decimal places. Positive test result Negative test result Total Has breast cancer Does not have breast cancer Total What is the probability a woman has breast cancer given that she just had a positive test? Give answer as decimals to 4 decimal places.
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Kahuna's Credit Union conducted a survey as to how long customers claimed to wait in the checkout line until their turn. Let X = time in line. The table below displays the ordered real data (in minutes): 0.50 4.25 5 6 7.25 1.75 4.25 5.25 6 7.25 2 4.25 5.25 6.25 7.25 2.25 4.25 5.5 6.25 7.75 2.25 4.5 5.5 6.5 8 2.5 4.75 5.5 6.5 8.25 2.75 4.75 5.75 6.5 9.5 3.25 4.75 5.75 6.75 9.5 3.75 5 6. 6.75 9.75 3.75 5 6.75 10.75 Calculate the sample mean and the sample standard deviation to the nearest hundreths.
Kahuna's Credit Union conducted a survey as to how long customers claimed to wait in the checkout line until their turn. Let X = time in line. The table below displays the ordered real data (in mînutes): 0.50 4.25 5 6. 7.25 1.75 4.25 5.25 6 7.25 4.25 5.25 6.25 7.25 2.25 4.25 5.5 6.25 7.75 2.25 4.5 5.5 6.5 8 2.5 4.75 5.5 6.5 8.25 2.75 4.75 5.75 6.5 9.5 3.25 4.75 5.75 6.75 9.5 3.75 5 6.75 9.75 3.75 5 6. 6.75 10.75 Calculate the sample mean and the sample standard deviation to the nearest hundreths. O Mean is 7.51 and standard deviation 4.15 Mean is 5.51 and standard deviation 2.15 Mean is 6.55 and standard deviation 2.45 O Mean is 4.51 and standard deviation 3.15
John was calculating the peeds (mph) of vehicles traveling down Maple Street on two separate days at 9 am for an hour. Below is the data she collected. Wednesday's speeds: 32,28,24,17,39,44,64,33,27,21,38,40,60,30,25,37,30,25,35,30 Sunday's speeds: 18,27,34,37,49,55,63,61,48,30,27,17,17,15,26,46,25 1. Calculate the mean and median of each day. 2. Calculate the five-number summary of each day. a. Wednesday's Five-Number Summary. b. Sunday's Five-Number Summary. 3. Test each day for outliers. If they have outliers, identify them and adjust the five-number summary to reflect the outlier. (Remember to find IQR and then Upper and Lower Limits) a. Wednesday's Outlier Test b. Sunday's Outlier Test 4. Create a stacked box-and-whisker plot using the five-number summaries from Wednesday and Sunday. 5. What do you notice about the box-and-whisker plots? Describe the spread in each specifically.
he Environmental Protection Agency (EPA) uses a measure called the Pollutant Standards Index (PSI) to measure air quality in a city. A PSI reading over 100 indicates a day when the air quality is considered unhealthy. The measurements represent the number of days in 1995 that the PSI was over 100 for twenty metropolitan areas in the U.S. Midwest.0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 3, 4, 4, 4, 4, 5, 7, 7, 11, 14A careless employee originally recorded a number that was at least 20 times larger than 14:0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 3, 4, 4, 4, 4, 5, 7, 7, 11, (much larger than 14)The employee's mistake would have the following effect:The median would stay the sameincrease decrease The mean would decreaseincrease stay the same The mode would increasestay the same decrease The IQR would increasedecrease stay the same The standard deviation would decreaseincrease stay the same