The following table displays the amount of data that Steve has used each month, in GB, with his ...

The following table displays the amount of data that Steve has used each month, in GB, with his iPhone during the past six months.
 
  Month 1 2 3 4 5 6
  Data 5 3 9 7 10 11
 
  The trend projection slope for this data is ________.
  A) 1.4000
  B) 1.7955
  C) 1.9021
  D) 2.6611

Q. 2

The adjusted multiple coefficient of determination modifies, or adjusts, the multiple coefficient of determination by accounting for the number of independent variables and the sample size used to develop a multiple regression model.
 
  Indicate whether the statement is true or false

Q. 3

The following data represent the end-of-month stock price of Facebook rounded to the nearest dollar from June to December.
 
  Date Price
  June 25
  July 37
  August 41
  September 50
  October 49
  November 47
  December 55
 
  The mean absolute deviation using trend projection is ________.
  A) 1.73
  B) 1.98
  C) 2.55
  D) 3.35

Q. 4

The p-value for the hypothesis test for the overall regression model represents the probability of obtaining an F-test statistic at least as extreme as the one observed from the sample if the alternative hypothesis were indeed true.
 
  Indicate whether the statement is true or false

Q. 5

You have been assigned to test the hypothesis that the variability for the number of hours per week that an American works is equal to the variability for the number of hours per week that a Swede works.
 
  The following data summarizes the sample statistics for the number of hours worked per week for workers in each country. American SwedeSample standard deviation 7.1 hours 4.3 hoursSample size 17 13The degrees of freedom for the critical value for Population 1 would be ________.A) 11
  B) 12
  C) 14
  D) 16

Q. 6

A golfer claims that his median golf score at the course he plays regularly is less than 90. The following random sample from 11 rounds were collected to test this hypothesis.
 
  88 85 93 86 86 90
  94 88 87 87 84
 
  The appropriate nonparametric procedure for this analysis is the _________________ test.
  A) Wilcoxon rank-sum
  B) sign
  C) Wilcoxon signed-rank
  D) Kruskal-Wallis

Q. 7

Gamers are described as people who regularly play video games. A random sample of 80 people was selected and 50 were found to be male. The 90 confidence interval for the proportion based on this sample is ________.
 
  A) (0.598, 0.652)
  B) (0.571, 0.679)
  C) (0.463, 0.787)
  D) (0.536, 0.714)