QUESTION 12 You hypothesize that drinking water increases test scores so you design a study comparing test scores between people who drink water and people who do not drink water.You collect data on 62 people and find that in your sample there are 27 people who do not drink water and 35 people who drink water. The mean test score for non-water drinkers is 62 with a standard deviation of 13, while the mean score for those who drink water is 75 with 11 standard deviation. Above you have calculate the t-statistic and found the critical value of t. Based on this information, is the difference between your two means STATISTICALLY SIGNIFICANT? OYes, because the t-statistic value calculated was less than the critical value of t, indicting that p < .05 O No, because the t-statistic value calculated was less than the critical value of t, indicating that p > .05 OYes, because the t-statistic value calculated was larger than the critical value of t, indicating that p < .05 O No, because the t-statistic value calculated was larger than the critical value of t, indicating that p > .05
QUESTION 12 You hypothesize that drinking water increases test scores so you design a study comparing test scores between people who drink water and people who do not drink water.You collect data on 62 people and find that in your sample there are 27 people who do not drink water and 35 people who drink water. The mean test score for non-water drinkers is 62 with a standard deviation of 13, while the mean score for those who drink water is 75 with 11 standard deviation. Above you have calculate the t-statistic and found the critical value of t. Based on this information, is the difference between your two means STATISTICALLY SIGNIFICANT? OYes, because the t-statistic value calculated was less than the critical value of t, indicting that p < .05 O No, because the t-statistic value calculated was less than the critical value of t, indicating that p > .05 OYes, because the t-statistic value calculated was larger than the critical value of t, indicating that p < .05 O No, because the t-statistic value calculated was larger than the critical value of t, indicating that p > .05
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Transcribed Image Text:QUESTION 12
You hypothesize that drinking water increases test scores so you design a study comparing test scores between people who drink
water and people who do not drink water.You collect data on 62 people and find that in your sample there are 27 people who do
not drink water and 35 people who drink water. The mean test score for non-water drinkers is 62 with a standard deviation of 13,
while the mean score for those who drink water is 75 with 11 standard deviation. Above you have calculate the t-statistic and found
the critical value of t. Based on this information, is the difference between your two means STATISTICALLY SIGNIFICANT?
OYes, because the t-statistic value calculated was less than the critical value of t, indicting that p < .05
O No, because the t-statistic value calculated was less than the critical value of t, indicating that p > .05
O Yes, because the t-statistic value calculated was larger than the critical value of t, indicating that p < .05
O No, because the t-statistic value calculated was larger than the critical value of t, indicating that p > .05
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