A researcher wanted to determine if the year the Star Spangled Banner was sung at a Super Bowl can be used as a linear predictor of the length of time (in seconds) the song was sung.  Data were collected and after checking all conditions, a linear regression analysis was produced.  Select Rguroo output is provided below.   What is the value of the t-test statistic hidden above?  Remember, the general form of the test statistic is (observed statistic – null parameter)/standard error.

Which of the following values best represent the value of the correlation between the ages of husbands and wives?

A random sample of records of home sales from March 1 to July 1, 2010 from the files maintained by the Charlottesville Board of Realtors gives the Price (in dollars) and Size (in square feet) of 32 homes.  The regression model is as follows: Predicted Price = 47,820 + [ 61 × (Size) ] In this context, does the y-intercept have a reasonable interpretation?

If you were testing whether the difference between two population means were equal (thus your H0: μ1 = μ2), what value would you find in the center of your randomization distribution?

Use the following situation to answer the next three questions. A random sample of records of home sales from March 1 to July 1, 2010 from the files maintained by the Charlottesville Board of Realtors gives the Price (in dollars) and Size (in square feet) of 32 homes.  The regression model is as follows: Predicted Price = 47,820 + [ 61 × (Size) ] What price would you predict for a 2,500 square-foot house in this market?

The following table gives information on majors at a certain college.     Major Percentage Humanities 26 Social Science 39 Math and Science 15 Interdisciplinary 20 Which of the following is an appropriate graph for showing the given distribution?

Which of the following samples taken from the sample 7, 27, 43, 49, 52, 60 could be a bootstrap sample?

A random sample taken with replacement from the original sample and is the same size as the original sample is known as a:

Suppose we have the following five number summary: Min = 6        Q1 = 11     Median = 12        Q3 = 14    Max = 19 Then, according to the fence rule formula: [LF = Q1 – 1.5(IQR) and UF = Q3 + 1.5(IQR)]:

Identify the appropriate parameter to conduct inference on based on the description of the survey/experiment conducted. Will humans swim faster or slower in syrup?  Twenty swimmers each swam a specified distance in a water-filled pool and in a pool in which the water was thickened with food grade guar gum to create a syrup-like consistecy.  Velocity, in meters per second, was recorded.  The order of the substance was selected randomly and each swimmer swam in both substances.