A Monster.com pool of 3,057 individuals asked, "What’s the longest vacation you plan to take this summer?" The following relative frequency distribution summarizes the results.
| Response | Relative Frequency |
| A few days | 0.21 |
| A few long weekends | 0.18 |
| One week | 0.36 |
| Two weeks | 0.22 |
The 95% confidence interval for the proportion of people who plan a one-week vacation this summer is ______.
Answer options:
[0.345, 0.375]
[0.338, 0.382]
[0.343, 0.377]
[0.345, 0.382]
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A Monster.com pool of 3,057 individuals asked, "What’s the longest vacation you plan to take this summer?" The following relative frequency distribution summarizes the results.