GVM Weights for White Vehicles – Management Assignment Help

Assignment Task

Task

1) Test if the mean number of cylinders of Nissan vehicles is less than Mercedes vehicles.

2) Test if the mean number of seats is different for each colour. If so, determine which colour has a statistically different mean.

3) .Use Bootstrapping to compute a 92?% confidence interval for the difference between Tare and GVM weights for white vehicles?

• Compute a 92?% confidence interval for the difference between Tare and GVM weights for white vehicles by using approximation.
• Can we conclude that Tare weights are different than GVM weights for white vehicles (Don’t do a hypothesis test)?
• Test the hypothesis that Tare weights are greater than GVM weights for white vehicles. 7 marks

4) Test if there is a difference in proportions of the bronze vehicles between Ford and Volkswagen?

5) The recent trend shows that people tend to buy heavier vehicles. We would like to investigate whether there is a linear relationship between the registration year and the mean of the GVM weight.

a) Decide if the mean GVM weight and the registration year are linearly related?

b) If so, compute the equation to predict mean GVM weight by using the registration year and discuss the significance of this equation? What is your estimate of the population mean GVM weight when the year is 19901990?

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