MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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- Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 77.7 Mbps. The complete list of 50 data speeds has a mean of x = 18.55 Mbps and a standard deviation of s=31.38 Mbps. a. What is the difference between carrier's highest data speed and the mean of all 50 data speeds? b. How many standard deviations is that [the difference found in part (a)]? c. Convert the carrier's highest data speed to a z score. d. If we consider data speeds that convert to z scores between 2 and 2 to be neither significantly low nor significantly high, is the carrier's highest data speed significant? a. The difference is Mbps. (Type an integer or a decimal. Do not round.)arrow_forwardWe have provided simple data sets for you to practice the basics of finding measures of variation. For each data set, determine the a. range. b. sample standard deviation. 4, 2, 0, 2, 2arrow_forwardHelp me pleasearrow_forward
- We have provided simple data sets for you to practice the basics of finding a a. population mean. b. population standard deviation. 3, 5, 7arrow_forwardThe weight of football players is normally distributed with a mean of 200 pounds and a standard deviation of 25 pounds. What is the minimum weight of the top 2% of players? Do Not Use Excel. Show the formula used and show your work. Use Z table if neccessary. Group of answer choices 151.75 pounds 251.25 pounds 148.75 pounds 158.25 poundsarrow_forwardThe state and will spend 15 hours average a week and class and the standard deviation is 2 hours what percentage of students spend less than 12 hours in classarrow_forward
- Solve the problem. Round results to the nearest hundredth.The mean of a set of data is -2.91 and its standard deviation is 3.88. Find the z score for a value of 2.80.arrow_forwardYour cat weighs 13 lbs. If the mean for weight of cats is 10 pounds and the standard deviation is two pounds, what percentage of cats weigh more than your cat? Round to the nearest hundredth of a percent. Example: 0.0125 would be written as 1.25% Answer = Blank 1% of cats weigh more than your catarrow_forwardhomework #19arrow_forward
- Mario's weekly poker winnings have a mean of $353 and a standard deviation of $67. Last week he won $185. How many standard deviations from the mean is that?arrow_forwardIn Statsville there’s a city-wide speed limit of 30 mph.If you are caught speeding the fine is $100 plus $10 forevery mile per hour you were over the speed limit. Forexample, if you’re ticketed for going 45 mph, your fine is100 + 10145 - 302 = +250. Last month all the driverswho were fined for speeding averaged 42 mph with astandard deviation of 7 mph. What were the mean andstandard deviation of the fines?A) $120 and $70 B) $220 and $7C) $220 and $70 D) $220 and $170E) $420 and $70arrow_forwardIn Exercise, we have provided simple data sets for you to practice the basics of finding measures of variation. For each data set, determine the a.range.b.sample standard deviation. 3, 5, 7arrow_forward
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