2.99
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The fill amount of bottles of a soft drink is normally distributed, with a mean of 2.0 liters and a standard deviation of 0.05 liter. If you select a random sample of 25 bottles, what is the probability that the sample mean will be

a. between 1.99 and 2.0 liters?

b. below 1.98 liters?

c. greater than 2.01 liters?

d. The probability is 99% that the sample mean amount of soft drink will be at least how much?

e. The probability is 99% that the sample mean amount of soft drink will be between which two values (symmetrically distributed around the mean)?

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** >** The file CigaretteTax contains the state cigarette tax ($) for each state and the District of Columbia as of January 1, 2017. a. Construct an ordered array. b. Plot a percentage histogram. c. What conclusions can you reach about the differences in the

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** >** Given a standardized normal distribution (with a mean of 0 and a standard deviation of 1, as in Table E.2), what is the probability that a. Z is less than 1.57? b. Z is greater than 1.84? c. Z is between 1.57 and 1.84? d. Z is less than 1.57 or greater t

** >** The file DomesticBeer contains the percentage alcohol, number of calories per 12 ounces, and number of carbohydrates (in grams) per 12 ounces for 158 of the best-selling domestic beers in the United States. Determine whether each of these variables appea

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** >** Medical billing errors and fraud are on the rise. According to Medical Billing Advocates of America, three out of four times, the medical bills that they review contain errors. Source: Kelly Gooch, “Medical billing errors growing, says Medical Billing A

** >** The file Property Taxes contains the property taxes on a $176K home for the 50 states and the District of Columbia. Decide whether the data appear to be approximately normally distributed by a. comparing data characteristics to theoretical properties.

** >** The file DomesticBeer contains the percentage alcohol, number of calories per 12 ounces, and number of carbohydrates (in grams) per 12 ounces for 158 of the best selling domestic beers in the United States. Source: Data extracted from www.beer100.com/bee

** >** The evening manager of a restaurant was very concerned about the length of time some customers were waiting in line to be seated. She also had some concern about the seating times—that is, the length of time between when a customer is seated and the time

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** >** What is the difference between the arithmetic mean and the geometric mean?

** >** What is the difference between skewness and kurtosis?

** >** What is meant by the property of shape?

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** >** What does the Z score measure?

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** >** What is meant by the property of central tendency?

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** >** Using the three-year return percentage variable in Retirement Funds: a. Construct a table that computes the mean for each combination of type, market cap, and rating. b. Construct a table that computes the standard deviation for each combination of typ

** >** Using the three-year return percentage variable in Retirement Funds: a. Construct a table that computes the mean for each combination of type, market cap, and risk. b. Construct a table that computes the standard deviation for each combination of type,

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** >** Facebook’s stock price in 2015 increased by 34.15%, and in 2016, it increased by 9.93%. Source: Data extracted from finance.yahoo.com, January 9, 2017. a. Compute the geometric mean rate of return per year for the twoyear period 2015–2016. b. If you purc

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** >** A bank branch located in a commercial district of a city has the business objective of developing an improved process for serving customers during the noon-to-1:00 p.m. lunch period. The waiting time, in minutes, is defined as the time the customer enter

** >** The file HotelAway contains the average room price (in US$) paid by various nationalities while traveling abroad (away from their home country) in 2016: 124 101 115 126 114 112 138 85 138 96 130 116 132 Source: Data extracted from hpi.hotels.com/. a. Com

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** >** The file MobileCommerce contains the following mobile commerce penetration values, the percentage of the country population that bought something online via a mobile phone in the past month, for 28 of the world’s economies: 23 27 26 25 40 19 26 36 23 33

** >** The file AccountingPartners contains the number of partners in a cohort of rising accounting firms that have been tagged as “firms to watch.” The firms have the following numbers of partners: 37 41 26 14 22 29 36 11 16 29 30 20 20 20 26 21 17 21 14 28 24

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