A story spoiler gives away the ending early. Does having a storyspoiled in this way diminish suspense and hurt enjoyment? Astudy1 investigated this question. For twelve differentshort stories, the study’s authors created a second version inwhich a spoiler paragraph at the beginning discussed the story andrevealed the outcome. Each version of the twelve stories was readby at least 30 people and rated on a 1 to 10 scale to create anoverall rating for the story, with higher ratings indicatinggreater enjoyment of the story. The ratings are given in Table 1and stored in StorySpoilers. Stories 1 to 4 wereironic twist stories, stories 5 to 8 were mysteries, and stories 9to 12 were literary stories. Test to see if there is a differencein mean overall enjoyment rating based on whether or not there is aspoiler.
| Story | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| With spoiler | 4.7 | 5.1 | 7.9 | 7.0 | 7.1 | 7.2 | 7.1 | 7.2 | 4.8 | 5.2 | 4.6 | 6.7 |
| Original | 3.8 | 4.9 | 7.4 | 7.1 | 6.2 | 6.1 | 6.7 | 7.0 | 4.3 | 5.0 | 4.1 | 6.1 |
Table 1 Enjoyment ratings for stories with and withoutspoilers
Find a 95% confidence interval for the difference in mean enjoymentrating between stories with a spoiler and stories without.
Click here for the dataset associated with this question.
Round your answers to three decimal places.
The 95% confidence interval is.....??????????
