10.43 In the presence of reverberation, native as well as nonnative speakers of English have some trouble recognizing consonants. Random samples of 10 natives and 10 nonnatives were given the Modified Rhyme Test, and the percentages of correct responses were recorded. (See Nabelek and Donahue, Journal of the Acoustical Society of America, 1984.) The data are as follows:

Is there sufficient evidence to say that nonnative speakers of English have a smaller mean percentage of correct responses at the 5% significance level?

Transcribed Image Text:

Natives: 93, 85, 89, 81, 88, 88, 89, 85, 85, 87 Nonnatives: 76, 84, 78, 73, 78, 76, 70, 82, 79, 77