Tay recorded the number of imported cars that drove by his house during rush hour. He collected data for 5 working days. Taye’s
sister Tiffany determined that an average of 15 imported cars drove by their house. Which cannot be a cause of the variation in Taye’s and Tiffany’s estimates?
A. Taye and Tiffany collected their data in different locations.
B.Taye and Tiffany collected their data during different weeks.
C. Taye and Tiffany collected their data in different locations.
D. Taye’s and Tiffany samples were not random samples.
A. Taye and Tiffany collected their data in different locations.
B.Taye and Tiffany collected their data during different weeks.
C. Taye and Tiffany collected their data in different locations.
D. Taye’s and Tiffany samples were not random samples.
1 answer:
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Answer:
0.1463
Step-by-step explanation:
Number of observations = 10
Sample mean = 10.5
Sum of standard deviation = 264.5
X = 14
We are to calculate The leverage statistic for study hour 14 using the data above
= 1/10 + (14-10.5)²/264.5
= 1/10 + 3.5²/264.5
= 0.1 +12.25/264.5
= 0.1+0.04631
= 0.1463 is the leverage statistic for the study
