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RObbiespigs RObbiespigs
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6 years ago
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 was collected to test this hypothesis.
 
  88 85 93 86 86 90
  94 88 87 87 84
 
  The p-value for this hypothesis test is ________.
  A) 0.0219
  B) 0.0345
  C) 0.0547
  D) 0.0710

Q. 2

Adding additional independent variables to the regression equation will always decrease the coefficient of determination.
 
  Indicate whether the statement is true or false

Q. 3

Soffritto Italian Grill served 220 dinners last Saturday night. The Chef's Special was ordered by 15 of the customers. A random sample of 50 customer orders from that evening was selected.
 
  What is the probability that between 8 and 12 of these orders were the Chef's Special?A) 0.3912
  B) 0.5210
  C) 0.7418
  D) 0.8267

Q. 4

A random sample of 150 mortgages in the state of Mississippi was randomly selected. From this sample, 17 were found to be delinquent on their current payment.
 
  Using this sample, the point estimate for the proportion of delinquent mortgages in Mississippi is ________.A) 0.080
  B) 0.102
  C) 0.113
  D) 0.137

Q. 5

A statistics class has 140 students of which 55 are female. A random sample of 40 students was selected. What is the probability that 24 or more from this sample will be female?
 
  A) 0.0505
  B) 0.1469
  C) 0.2266
  D) 0.2611
Textbook 
Business Statistics

Business Statistics


Edition: 2nd
Author:
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charles654charles654
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6 years ago
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RObbiespigs Author
wrote...
6 years ago
Makes more sense now, TY
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