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bonganh1996 bonganh1996
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Posts: 336
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6 years ago
Recently, 18.3 of visitors to the Travelocity website hailed from the Google search engine. A random sample of 130 visitors on the Travelocity was selected. The standard error of the proportion is ________.
 
  A) 0.0206
  B) 0.0339
  C) 0.0466
  D) 0.0548

Q. 2

Suppose Apple would like to test the hypothesis that the standard deviation for the web browsing battery life of the iPad equals 3.0 hours. The following data represents the battery life, in hours, experienced by a random sample of six users.
 
  10 14 12 16 10 6The sample standard deviation is ________.A) 2.41
  B) 2.66
  C) 3.19
  D) 3.50

Q. 3

The No Child Left behind Act of 2001 (NCLB) established standards-based guidelines to determine the effectiveness of public schools. According to a recent study, 45.5 of U.S.
 
  public schools failed to make adequate progress in a recent year as defined by NCLB. A random sample of 67 public schools was selected. The standard error of the proportion is ________.A) 0.0294
  B) 0.0322
  C) 0.0487
  D) 0.0608

Q. 4

If the test statistic for the Kruskal-Wallis test is greater than the critical value for the Kruskal-Wallis test, the null hypothesis is rejected.
 
  Indicate whether the statement is true or false

Q. 5

A random sample of 17 hotels in Boston had an average nightly room rate of 165.40 with a sample standard deviation of 21.70. The critical value for a 98 confidence interval around this sample mean is ________.
 
  A) 2.921
  B) 2.898
  C) 2.567
  D) 2.583

Q. 6

According to IDC, Apple's share of the smartphone market was 40.4 during a recent quarter. A random sample of 90 smartphone users was selected. The standard error of the proportion is ________.
 
  A) 0.0160
  B) 0.0337
  C) 0.0517
  D) 0.1034
Textbook 
Business Statistics

Business Statistics


Edition: 2nd
Author:
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vikopimovikopimo
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Posts: 220
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6 years ago
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bonganh1996 Author
wrote...
6 years ago
I hope they're paying you for this because all of them were correct Grinning Face with Smiling Eyes
wrote...
6 years ago
not really, just a volunteer... and you're welcome Wink Face
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