Biology Forums - Study Force

When testing for the presence of positive autocorrelation and the Durbin-Watson statistic is less than the lower critical value, which one of the following statements is true?
 
  A) We fail to reject the null hypothesis and conclude that a positive autocorrelation is present in the time series.
  B) We fail to reject the null hypothesis and conclude that no positive autocorrelation is present in the time series.
  C) We reject the null hypothesis and conclude that a positive autocorrelation is present in the time series.
  D) The hypothesis test is inconclusive.

Q. 2

The Fortune 500 is comprised of Fortune magazine's annual list of the top 500 companies in the U.S. ranked by revenues. According to Catalyst, 16 of positions on corporate boards at Fortune 500 companies were held by women in a recent year.
 
  A random sample of 100 Fortune 500 companies was selected. The standard error of the proportion is ________.A) 0.0125
  B) 0.0329
  C) 0.0467
  D) 0.0592

Q. 3

The number of home runs hit by the best hitter on the baseball team is an example of _______ data.
 
  A) nominal
  B) ordinal
  C) interval
  D) ratio

Q. 4

Excel requires that the independent variables be located in adjacent columns in the spreadsheet.
 
  Indicate whether the statement is true or false

Q. 5

Apple would like to estimate the web browsing battery life of the iPad. The following data represents the battery life, in hours, experienced by six users.
 
  10 13 12 16 10 8Using this sample, the point estimate for the age of cars sold for the first time is ________.A) 9.68
  B) 10.19
  C) 11.50
  D) 13.26

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Makes more sense now, TY