Mileage Significance: National Versus Dealer's Average

Related BrainMass Solutions

• Hypothesis testing problems

  Is the dealer's mean significantly greater than the national average of 30,000 miles for 2-year leased vehicles, using the 10 percent level of significance?

• Hypothesis Testing for Mother and Daughter Heights

  When the cars were returned in 2006, the mileage was recorded (see below). Is the dealer's mean significantly greater than the national average of 30,000 miles for 2-year leased vehicles, using the 10 percent level of significance?

• Statistics Problem Set and Signficance Levels

  At the .05 significance level, can we conclude that the mean waiting time is less than 3 minutes? 7. A recent national survey found that high school students watched an average (mean) of 6.8DVDs per month.

• Hypothesis Testing & Confidence Interval

  mileage of tyres ≥ 32000 (µ ≥ 32000) The alternative hypothesis is H1: Average mileage of tyres < 32000 (µ < 32000) Significance level = 0.05 Test Statistic used is .

• Hypothesis Testing

  mileage is same for all types of gas) H1:(Average mileage is not same for all types of gas) Significance level =5% On performing ANOVA-Single factor Analysis with the help of MS Excel for above data, we get following result.

• The answer to Hypotheses testing problems

  The mean monthly mileage over the years for Citrus cars has been about 1550 miles per month. Recently, though, Citrus purchased thousands of new cars, and the company claims that the average mileage of its cars is now less than in the past.

• t-test of mean

  The manufacturer of the Ososki motorcycle advertises that the cycle will average 87 miles per gallon of gasoline.

• Four hypothesis test questions

  Brigden conclude that she is earning an average of more than $20 in tips?

• The manufacturer of the X-15 steel-belted radial truck tire claims that the mean mileage the tire can be driven before the tread wears out is 60,000 miles.

  The Crosset Truck Company bought 48 tires and found that the mean mileage for their trucks is 59,500 miles. Is Crosset's experience different from that claimed by the manufacturer at the .05 significance level? 18.