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Author Question: If the graph of a distribution of data shows that the graph is skewed to the right then the A) ... (Read 144 times)

neverstopbelieb

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on: Jul 25, 2018
If the graph of a distribution of data shows that the graph is skewed to the right then the
 
  A) Mean  Median
  B) Mean < Median
  C) No conclusion about the relative position of the mean and the median can be made
  D) Mean > Median

Question 2

A marketing survey involves product recognition in New York and California. Of 558 New Yorkers surveyed, 193 recognized the product while 196 out of 614 Californians recognized the product.
 
  At the 5 significance level, do the data provide sufficient evidence to conclude that the recognition rate in New York differs from the recognition rate in California?


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Andromeda18

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Reply #1 on: Jul 25, 2018
Answer to Question 1

D

Answer to Question 2

H0: p1 = p2, Ha: p1  p2.
 = 0.05
Test statistic: z = 0.97. P-value = 0.332
Do not reject the null hypothesis. At the 5 significance level, the data do not provide sufficient evidence to conclude that the recognition rate in New York differs from the recognition rate in California.


neverstopbelieb

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Reply #2 on: Jul 25, 2018
Thank you!


Andromeda18

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Reply #3 on: Jul 25, 2018
Always glad to help...


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