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TABLE 9-9
The president of a university claimed that the entering class this year appeared to be larger than the entering class from previous years but their mean SAT score is lower than previous years. He took a sample of 20 of this year's entering students and found that their mean SAT score is 1,501 with a standard deviation of 53. The university's record indicates that the mean SAT score for entering students from previous years is 1,520. He wants to find out if his claim is supported by the evidence at a 5% level of significance.
-Referring to Table 9-9, if these data were used to perform a two-tail test, the p-value would be 0.1254.
Q25: Referring to Table 11-6, the null hypothesis
Q29: The larger the p-value, the more likely
Q69: Referring to Table 10-12, the value of
Q96: For sample sizes greater than 30, the
Q99: Referring to Table 7-6, the population mean
Q100: The standardized normal distribution is used to
Q105: Referring to Table 10-13, suppose α =
Q136: Suppose you want to test H₀: μ
Q159: Referring to Table 8-6, 95% of the
Q184: Referring to Table 10-8, suppose Pepsi wanted