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To provide more consistent customer service, the manager of a local fast-food restaurant would like to know the dispersion of customer service times about their average value for the facility’s drive-up window. The table below provides summary measures for the customer service times (in minutes) for a sample of 50 customers collected over the past week. Summary Statistic Value Count 50.000 Mean 0.873 Median 0.885 Standard deviation 0.432 Minimum 0.077 Maximum 1.608 Variance 0.187 Skewness -0.003 Hint: The distribution has a skewness value very close to zero (-0.003), indicating it closely resembles a normal distribution. Approximately what percentage of the customer service times will fall between 0.873 ± 2(0.432), that is between 0.009 and 1.737 minutes? (Do not include a percentage sign, provide a value between 0-100 and round to one decimal if needed)

Please write a thesis statement in response to the following prompt: Tell me about a specific, influential person in your life.   *NOTE: You are NOT writing a complete essay or paragraph here. Instead, you are drafting a one-sentence thesis statement in response to the prompt. Demonstrate the characteristics of an effective thesis statement. You may use either an enumerative or an umbrella approach. 

A random sample of 399 Michigan families was surveyed. The data include family size (small or large), number of cars owned by family (1, 2, 3, or 4), and whether family owns a foreign car. Excel® produced the pivot table shown below. Use this pivot table to determine how family size and number of cars owned influence the likelihood that a family owns a foreign car.

A statistics professor has just given a final examination in his statistical inference course. He is particularly interested in learning how all students who took the course this semester performed. He has the following grades from his class of 40 student’s performance on the exam. The scores are shown below. You may copy and paste the table directly into Excel for calculations. 77 81 74 77 79 73 80 85 86 73 83 84 81 73 75 91 76 77 95 76 90 85 92 84 81 64 75 90 78 78 82 78 86 86 82 70 76 78 72 93 What is the variance on this exam? Round your answer to two decimals.

Use a pivot table to find counts of movies by various distributors. The count for Columbia is equal to (round to the next integer if needed):

Create a pivot table and corresponding pivot chart that: Shows the average and standard deviation of Ratio1 Breaks down these statistics by Distributor New (rows) Includes Decade as a filter option Your pivot table should allow you to analyze how different distributors perform in terms of US Gross to Budget ratio, with the ability to filter by decade. In 1990s, the standard deviation for Ratio 1 for Sony is equal to (round to three decimals if needed):

Consider a fire truck with a water tank 16 feet long whose vertical cross-sections are ellipses modeled by the equation     Find the volume of the tank.       Click ‘True’ when finished

Which one of the following describes a bladder diverticulum? a.  Cystic enlargement of the bladder orifice b.  Echogenic mass of the bladder wall c.  Herniation of the bladder wall d.  Focal thickening of the bladder wall

The normal range in size of the kidney is __________________? a.  4 to 7 cm b.  7 to 9 cm c.  9 to 14 cm d.  13 to 17 cm

Hydronephrosis may be best demonstrated sonographically by which one of the following patterns? a.  Distorted shape of the kidney outline b.  Multiple cystic masses throughout the renal parenchyma c.  Fluid-filled pelvocaliceal collecting system d.  Hyperechoic pelvocaliceal collecting system