Variance on Miles per Gallon

Related BrainMass Solutions

• How Many Test Runs for a Sample Size?

  on the highway to within 2 miles per gallon with 95% confidence, if a good guess is that the variance of the population of miles per gallon is about 100?

• A citizen's action committee against nuclear power is comprised of 4 Democrats, 8 Republicans, and 3 Conservatives. If one person is randomly selected from this committee:

  A consumer testing agency selects 50 of these cars and finds that the sample mean is 25 miles per gallon and the variance for this sample is 9 miles per gallon. Is the manufacturer's claim accurate? (alpha = 0.05) 3).

• One sample t test for checking quality of motors

  Calculate the mean average miles per gallon. Compute the sample variance and sample standard deviation. 3. Construct the appropriate statistical test for your hypothesis, using a 0.05 significance level. Please see the answers.

• Testing of variance with chi-square

  You find that a random sample of the miles per gallon of 25 of the manufacturer's hybrid vehicles has a variance of 8.0. Let OX = 0:05. 13. Identify H0 and Ha. (Note: Remember you are not testing the mean, so 2, not  should be used.) 14.

• Develop a multiple linear regression model & compare

  A sample of twenty automobiles was taken, and the miles per gallon (MPG), horsepower and total weight were recorded. Develop a linear regression model to predict MPG using horsepower as the only independent variable.

• Hypothesis testing problems : ANOVA

  432076 Hypothesis testing problems : ANOVA vehicle Miles per gallon xbar variance Panzer 9.3, 9.3 9.3 8.6 8.7 9.3 9.3 9.91 0.10

• Ratios for miles per gallon.

  Number of miles per gallon for car x = p / k Number of miles per gallon for car y = r / s Number of miles per gallon for car x / Number of miles per gallon for car y = ( p / k ) / ( r / s )

• Obtaining Data from a Frequency Table

  The number of cars that got over 30 miles per gallon B. The number of cars that got less than 10 Miles per gallon C. The number of cars that got 30 miles per gallon D.

• Questions on Mileage and Lake Depth

  Suppose your car averages 35 miles per gallon on the highway if your average speed is 50 miles per hour, and it averages 27 miles per gallon on the highway if your average speed is 69 miles per hour. Answer parts (a) and (b) below. a.