Main answer:
Based on this confidence interval, it can be concluded that the mean time spent on the phone by women is lower than the mean time spent on the phone by men. The answer is NO
Step-by-step explanation:
The given confidence interval for μmen −μwomen is (−150.30). This interval is entirely negative, suggesting that, within a 90% confidence level, the difference between the mean time spent on the phone by men and women is negative.
Since the entire interval is negative, it implies that, based on this confidence interval, μwomen (the mean time spent on the phone by women) is lower than μmen (the mean time spent on the phone by men).
Therefore, based on this confidence interval, it can be concluded that the mean time spent on the phone by women is lower than the mean time spent on the phone by men.
Do women spend more time talking on the phone than men? A student collects data from students at her university and reports a 90% confidence interval for μ(men)-μ(women) to be (-150.30), where μ(men) is the mean number of minutes per month for men. Based on this confidence interval, can it be concluded that (women) is higher than μ(men)? Choose the correct answer below. O Yes O No