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A sample of experienced typists revealed that their mean typing speed is 85 words per minute and the median is 74. The standard deviation is 16.9 words per minute. What is the Pearson's coefficient of skewness? +1 -1 +2.0 -2.0

QUESTION ONE: The Director of Planning for Devine Dining, Inc., wishes to study the relationship between the gender of a guest and whether the guest orders dessert. To investigate the relationship the manager collected the following information on 200 recent customers. Gender Dessert Ordered Yes No Total Male Female Total 33 77 36 74 69 151 110 110 220 (a) What is the level of measurement of the two variables? Both variables are nominal. Both variables are ordinal. (b) What is the above table called? Frequency table Contingency table (c) Does the evidence in the table suggest men are more likely to order dessert than women? No Yes QUESTION TWO: Consider the following chart. (a) What is this chart called? Dot plot Histogram (b) How many observations are in the study? (c) What are the maximum and the minimum values? Maximum Minimum (d) Around what values do the observations tend to cluster? and QUESTION THREE: The box plot shows the undergraduate in-state charge per credit hour at four-year public colleges. (a) Estimate the median. (b) Estimate the first and third quartiles. Q1 Q3 (c) Determine the interquartile range. (d) Beyond what point is a value considered an outlier? (e) Identify any outliers and estimate their value. If there are no outliers type \"none\". (f) Is the distribution symmetrical or positively or negatively skewed? positively skewed negatively skewed symmetric QUESTION FOUR: In the following set of data, what are the first, second, and third quartiles? 4, 7, 12, 17, 24, 25, 96 7, 17, and 25. 7, 12, and 25. 4, 17, and 96. 4, 12, and 96. QUESTION FIVE: Using the following statistics to describe a distribution of data, what is the interquartile range? Minimum = 13 Q1 = 28 Median = 46 Q3 = 70 Maximum = 92 28. 83. 15. 42. QUESTION SIX: A large oil company is studying the number of gallons of gasoline purchased per customer at self-service pumps. The mean number of gallons is 10 with a standard deviation of 2 gallons. The median is 10.75 gallons. What is the Pearson's coefficient of skewness? rev: 03_01_2013_QC_27450 1.13 + 1.00 1.00 + 1.13 QUESTION SEVEN: What is the value of the Pearson coefficient of skewness for a distribution with a mean of 18, median of 10 and standard deviation of 5? +1 +4.8 -1 -4.8 QUESTION EIGHT A sample of experienced typists revealed that their mean typing speed is 85 words per minute and the median is 74. The standard deviation is 16.9 words per minute. What is the Pearson's coefficient of skewness? +1 -1 +2.0 -2.0