Use your standard normal table to answer the following: A building inspector believes that the percentage of new constructions with serious code violations may be even greater than the previously established 7%. She conducts a hypothesis test on 200 new homes and finds 23 with serious violations. At a significance level of 0.01, is this evidence for a higher percentage than the formerly established 7%?" Hint: Find the z-score to establish the p-value. __Yes, because the p-value is 0.0009, which is smaller than the significance level of 0.01. ___Yes because the p-value is 0.0062, which is smaller than the significance level of 0.01. ___Yes, because the p-value is 0.0438. ___No, because the p-value is only 0.07. ___No, because the p-value is over 2.0, which is larger than the significance level of 0.01. ___No, because the p-value is 0.9936, which is larger than the significance level of 0.01.
Use your standard normal table to answer the following: A building inspector believes that the percentage of new constructions with serious code violations may be even greater than the previously established 7%. She conducts a hypothesis test on 200 new homes and finds 23 with serious violations. At a significance level of 0.01, is this evidence for a higher percentage than the formerly established 7%?"
Hint: Find the z-score to establish the p-value.
__Yes, because the p-value is 0.0009, which is smaller than the significance level of 0.01.
___Yes because the p-value is 0.0062, which is smaller than the significance level of 0.01.
___Yes, because the p-value is 0.0438.
___No, because the p-value is only 0.07.
___No, because the p-value is over 2.0, which is larger than the significance level of 0.01.
___No, because the p-value is 0.9936, which is larger than the significance level of 0.01.
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