Statistics Problems Speech or Presentation Example | Topics and Well Written Essays - 1250 words

Statistics Problems - Speech or Presentation ExampleThe mean of the distribution was 60,000 miles and the standard divergency 2,000 miles.38. The mean amount purchased by a typical customer at Churchills Grocery come in is $23.50 with a standard deviation of $5.00. Assume the distribution of amounts purchased follows the normal distribution. For a sample of 50 customers, resultant role the following questions.54. Families USA, a monthly magazine that discusses issues related to health and health be, surveyed 20 of its subscribers. It found that the one-year health insurance premiums for a family with coverage through an employer averaged $10,979. The standard deviation of the sample was $1,000.42. During recent seasons, major League Baseball has been criticized for the length of the games. A report indicated that the average game lasts 3 hours and 30 minutes. A sample of 17 games revealed the following times to completion. (Note that the minutes have been changed to fractions o f hours, so that a game that lasted 2 hours and 24 minutes is inform at 2.40 hours.)58. The amount of income spent on accommodate is an important chemical element of the cost of living. The total costs of housing for homeowners might include mortgage payments, property taxes, and utility costs (water, heat, electricity). An economist selected a sample of 20 homeowners in New England and then calculated these total housing costs as a percent of monthly income, five years ago and now. The information is reported below. Is it reasonable to conclude the percent is less now than five years ago?42. Martin Motors has in transmit three machines of the same make and model. The president would like to compare the gas consumption of the three cars (labeled car A, car B, and car C) using four different types of gasoline. For each trial, a gallon of gasoline was added to an vitiate tank, and the car was driven until it ran out of