reply asap both please Bob's Slurpee store offers 10 different varieties of Slurpees. To investigate how popular the differentvarieties of his drinks are with his customers, Bob conducts a survey and illustrates the results inwhich type of graph?Select one:O a. a time series graphO b. a scatter diagramO c. a pie chartO d. all of the aboveO e. none of the above The table below shows that, in one day, Jean can bake either 150 batches of cookies or 50 batchesof doughnuts, while John can bake either 180 batches of cookies or 60 batches of doughnuts.Which one of the following statements is true?Batches of cookiesBatches of doughnutsJean15050John18060Select one:O a. Jean has a lower opportunity cost than John for baking 1 batch of doughnutsO b. Jean has a higher opportunity cost than John for baking 1 batch of cookiesO c. John has a higher opportunity cost than Jean for baking 1 batch of cookiesO d. Jean and John have equal opportunity costsO e. none of the above

Answered: Bob's Slurpee store offers 10 different…

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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waiting time at the drive-through of a fast-food restaurant from the time an order is placed to the time the order is received is 83.8 seconds. A manager devises a new drive-through system that he believes will decrease wait time. As a test, he initiates the new system at his restaurant and measures the wait time for 10 randomly selected orders. The wait times are provided in the table to the right. Complete parts (a) and (b) below.
In a lumberjack competition, a contestant is blindfolded and spun around 9 times. The blindfolded contestant then tries to hit the target point in the middle of a horizontal log with an axe. The contestant receives 15 points if his hit is within 3 cm of the target, 10 points if his hit is between 3 cm and 10 cm of the target, 5 points if his hit is between 10 cm and 20 cm of the target, and Zero points if his hit is 20 cm or more away from the target. Let Y record the position of the hit, so that Y=y>0 corresponds to missing the target point to the right by y cm Y=-y<0 corresponds to missing the target to the left by y cm. Assume that Y is normally distributed with mean mu=0 and variance 100 cm2. Find the expected number of points that the contestant wins.
The following question is on statistics. An automatic car wash takes exactly 5 minutes to wash a car. On average, 10 cars per hour arrive at the car wash. Suppose that 30 minutes before closing time, 5 cars are in line. If the car wash is in continuous use until closing time, is it likely anyone will be in line at closing time?
For each successive presidential term from Franklin Pierce (the 14th president, elected in 1853) to George W. H. Bush (41st president), the party affiliation controlling the White House is shown below, where R designates Republican and D designates Democrat. (Reference: The New York Times Almanac.)Historical Note: We start this sequence with the 14th president because earlier presidents belonged to political parties such as the Federalist or Wigg party (not Democratic or Republican). In cases in which a president died in office or resigned, the period during which the vice president finished the term is not counted as a new term. The one exception is the case in which Lincoln (a Republican) was assassinated and the vice president Johnson (a Democrat) finished the term. D D R R D R R R R D R D R R R R D D R R D D D D D R R D D R R D R R R Test the sequence for randomness at the 5% level of significance. Use the following outline. (b) Find the number of runs R, n1, n2,…
In 42 of the 64 years from 1950 through 2014,the S& P 500 finished higher after the first five days of trading (in 2011 there was virtually no change). In 37 out of 42 years, the S&P 500 finished higher for the year. Is a good first week a good omen for the upcoming year? The following table gives the first-week and annual performance over this 64-year period. S&P 500's Annual Performance First week Higher Lower Total Higher 37 5 42 Lower 11 11 22 Total 48 16 64 a) If a year is selected at random,what is the probability that the S&P 500 finished lower for the year? b) Given that the S&P fiished lowerr after the first five days of trading, what is the proability that it finished lower for the year? c) Are the two events "first week performance" and "annual performance" independent?
Using the same question as in question 1 (restated below), answer the following question: A consumer psychologist asked to test a claim by a swimming school that its instructors could teach the average seven-year-old to swim across an Olympic-sized pool in less than 2 minutes. The psychologist arranged for eight randomly selected seven-year-old children to take lessons at the school and recorded how long it took each child to swim across a pool at the end of the lessons. The times (in seconds) were 60, 65 100, 80, 70, 90, 100, and 100, which averages to 83.125 . The known population's mean was 120 seconds. If you ran a statistical test on this data and came up with the following results, would you say that the lessons resulted in a significant change in time taken to swim across the pool? Cutoff t score needed = +/-1.895 t = 2.88 Is the t score given more extreme than the cutoff score in the desired direction? Select one: a. No, it is not significant. b. Yes, it is…
A coin that has a probability p of appearing head is flipped in succession until two of the last three throws are heads. If N indicates the number of flipping activities. (Note that if the first two reversals are heads, then N = 2.) Determine the value of E[N] = ?
Can you provide any explanation for these results? For THE 3 TABS BELOW: Tab 1, Tab 2 & Tab 3 TAB 1. Year Age of Miss America Murder by steam, hot vapors and hot objects Dev(x) Dev(y) CP 1999 24 7 1.9 2.5 4.69 2000 24 7 1.9 2.5 4.69 2001 24 7 1.9 2.5 4.69 2002 21 3 -1.1 -1.5 1.69 2003 22 4 -0.1 -0.5 0.05 2004 21 3 -1.1 -1.5 1.69 2005 24 8 1.9 3.5 6.60 2006 22 4 -0.1 -0.5 0.05 2007 20 2 -2.1 -2.5 5.32 2008 19 3 -3.1 -1.5 4.78 2009 22 2 -0.1 -2.5 0.23 Mean 22.1 5 Sum 34.45 Standard Deviation 1.75810 2.25227 Covariance 3.45 Correlation Coefficient 0.87013 0.87013 TAB 2 Year Letter in Winning World of Scripps National Spelling Bee Number of people Killed by venomous spider Dev(x) Dev(y) CP 1999 9 6 -1.0 -1.4 1.36 2000 8 5…

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