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:
a. The sampling distribution for the sample mean will be skewed to the left centered at the average u, and standard deviation will be ∅
b. The sample distribution will be normal in shape and will be centered at the average u, . standard deviation will be ∅1
c. As the size of the sample increases, the sample distribution should draw near and resemble the distribution of the population
Step-by-step explanation:
A sample is chosen randomly from a population that was strongly skewed to the left. a) Describe the sampling distribution model for the sample mean if the sample size is small. b) If we make the sample larger, what happens to the sampling distribution model’s shape, center, and spread? c) As we make the sample larger, what happens to the expected distribution of the data in the sample?
The following answers will march the questions above:
a. The sampling distribution for the sample mean will be skewed to the left centered at the average u, and standard deviation will be ∅
b. The sample distribution will be normal in shape and will be centered at the average u, . standard deviation will be ∅1
c. As the size of the sample increases, the sample distribution should draw near and resemble the distribution of the population