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. 2Suppose 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. 3The 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. 4If 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. 5A 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. 6According 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