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{"ops":[{"insert":"1. A researcher used a developed problem solving test to randomly select 50 Grade 6 pupils. In "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"this sample, and . The mean and the standard deviation of the population used in "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"the standardization of the test were 75 and 15, respectively. Use the 95% confidence level."},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"2. The decision is ________ the null hypothesis because there is ____________ evidence to "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"_________ it. This implies that there is _____________________ between the means. According to "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"the test, we can say that the sample belongs to a population that is _________ average, which is 75."},{"insert":"\n"}]}
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