Statistics and Probability

V Direction: Determine what is asked in each problem as indicated by the blanks. 1. A school principal claims that the Grade 11 students in her high school have a mean score of 92. Parameter: Null Hypothesis: Claim: mean score of 92 Alternative Hypothesis: Ha: p # 92 2. A medicine company has manufactured and claimed that their medicine pill contains an average of 14mg of active ingredient. Parameter: average Null Hypothesis: Claim: average of 14mg Alternative Hypothesis: 3. According to a company, the mean pl level of the river water is 7.4. A researcher randomly selected 15 river water samples and found out that the mean is 6.7 with standard deviation of 0.24. Parameter: mean Null Hypothesis: Claim: mean pH level of the water river is 7.4 Alternative Hypothesis