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Study Resources (Statistics)

  181) Referring to Table 10-13, what assumptions are necessary for testing if there is evidence of a difference in the variabilities of the amount of time required to reach a customer service representative between the two hotels to be valid? A) Both sampled populations are normally distributed. B) Both samples are random.
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  151) Referring to Table 10-12, the null hypothesis will be rejected if the test statistic is ________. 152) Referring to Table 10-12, the value of the test statistic is ________. 153) Referring to Table 10-12, the p-value of the test is ________. 154) True or False: Referring to Table 10-12, the null hypothesis.
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  71) True or False: Referring to Table 10-5, in examining the differences between related samples we are essentially sampling from an underlying population of difference "scores." TABLE 10-6   To investigate the efficacy of a diet, a random sample of 16 male patients is selected from a population of adult males using the.
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  121) Referring to Table 10-8, construct a 99% confidence interval estimate of the difference between the proportion of males and females who prefer Pepsi. TABLE 10-9   The following EXCEL output contains the results of a test to determine whether the proportions of satisfied customers at two resorts are the same or different..
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  71) Referring to Table 11-8, what are the degrees of freedom of the Studentized range distribution for the Tukey multiple comparison procedure? 72) Referring to Table 11-8, what is the upper-tail critical value of the Studentized range distribution for the Tukey multiple comparison procedure at the 5% level of significance? 73) Referring.
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  81) Referring to Table 10-6, what is the 99% confidence interval estimate for the mean difference in weight before and after the diet? 82) Referring to Table 10-6, what is the 90% confidence interval estimate for the mean difference in weight before and after the diet? TABLE 10-7   A buyer for a manufacturing.
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  31) Referring to Table 10-3, suppose α = 0.10. Which of the following represents the result of the relevant hypothesis test? A) The alternative hypothesis is rejected. B) The null hypothesis is rejected. C) The null hypothesis is not rejected. D) Insufficient information exists on which to make a decision. 32) Referring to Table 10-3,.
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  161) The statistical distribution used for testing the difference between two population variances is the ________ distribution. A) t B) standardized normal C) binomial D) F 162) The test for the equality of two population variances is based on A) the difference between the 2 sample variances. B) the ratio of the 2 sample variances. C) the.
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  31) Referring to Table 11-11, the among-group variation or SSA is ________. 32) Referring to Table 11-11, the among-block variation or SSBL is ________. 33) Referring to Table 11-11, the value of MSA is ________, while MSBL is ________. 34) Referring to Table 11-11, the null hypothesis for the randomized block F test.
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  1) Which of the following is an assumption required by the Analysis of Proportions (ANOP)? A) The variance of the groups is different. B) The observations from each of the groups are assumed to be approximately normally distributed. C) The shape of the distribution of the observations from the groups is different. D) The.
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  61) Referring to Table 12-6, what is the critical value? 62) Referring to Table 12-6, what is the p-value of the test statistic? 63) True or False: Referring to Table 12-6, the null hypothesis cannot be rejected. 64) Referring to Table 12-6, what is the correct conclusion? A) There is enough evidence that the.
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  101) A campus researcher wanted to investigate the factors that affect visitor travel time in a complex, multilevel building on campus. Specifically, he wanted to determine whether different building signs (building maps versus wall signage) affect the total amount of time visitors require to reach their destination and whether that.
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  201) Referring to Table 10-15, suppose α = 0.01. Which of the following represents the correct conclusion? A) There is not enough evidence that the mean starting annual salaries for individuals entering the public accounting professions is not higher than that of financial planning. B) There is enough evidence that the mean.
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  191) Referring to Table 10-14, suppose α = 0.05. Which of the following represents the result of the relevant hypothesis test? A) The alternative hypothesis is rejected. B) The null hypothesis is rejected. C) The null hypothesis is not rejected. D) Insufficient information exists on which to make a decision. 192) Referring to Table 10-14,.
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  131) Referring to Table 10-10, what is/are the critical value(s) when performing a Z test on whether population proportions are different if α = 0.05? A) ±1.645 B) ±1.96 C) -1.96 D) ±2.08 132) Referring to Table 10-10, what is/are the critical value(s) when testing whether population proportions are different if α = 0.10? A) ±1.645 B).
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  91) Referring to Table 10-7, what is the 99% confidence interval estimate for the mean difference in prices? 92) Referring to Table 10-7, what is the 95% confidence interval estimate for the mean difference in prices? 93) Referring to Table 10-7, what is the 90% confidence interval estimate for the mean difference.
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  171) Referring to Table 10-13, what is the standardized value of the estimate of the mean of the sampling distribution for the difference between sample means? A) 0.2025 B) 0.3544 C) 2.0115 D) 2.2140 172) Referring to Table 10-13, what is the value of the test statistic? A) 0.2025 B) 0.3544 C) 2.0115 D) 2.2140 173) Referring to Table 10-13,.
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  31) Referring to Table 12-4, the calculated value of the test statistic is A) -0.1777. B) -0.0185. C) 1.4999. D) 1.5190. 32) Referring to Table 12-4, at 1% level of significance, A) there is sufficient evidence to conclude that the proportions of errors in transactions assigned to each of the 5 memory locations are all.
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  141) Referring to Table 10-11, the null hypothesis will be rejected if the test statistic is ________. 142) Referring to Table 10-11, the value of the test statistic is ________. 143) Referring to Table 10-11, the p-value of the test is ________. 144) True or False: Referring to Table 10-11, the null hypothesis.
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  21) Referring to Table 12-3, the overall or mean proportion of local riders is ________. 22) Referring to Table 12-3, the expected cell frequency in the Male/Local cell is ________. 23) Referring to Table 12-3, the expected cell frequency in the Female/Non-Local cell is ________. 24) Referring to Table 12-3, the critical value.
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  111) Referring to Table 11-8, interpret the test for interaction. A) There is insufficient evidence to say at the 0.10 level of significance that the difference between the mean charges for foreign and USA graduates depends on primary specialty. B) There is sufficient evidence to say at the 0.10 level of significance.
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