Given below are percentage scores from a numeracy test. 92 78 94 100 100 100 60 34 42 74 92 76 94 72 100 90 62 38 44 72
Posted: Tue Jul 05, 2022 9:18 am
Given below are percentage scores from a numeracy test.
92 78 94 100 100 100 60 34 42 74
92 76 94 72 100 90 62 38 44 72
86 68 90 62 92 90 58 40 46 74
82 62 90 66 94 88 60 32 18 20
8 10 22 14 16 62 62 52 62 28
1. If the numeracy test scores are normally distributed, betweenwhich two scores would the middle 68 percent of the scores lie?
2. If this numeracy test had a reliability index of 0.80,estimate the true score of a student that has an observed score of60. Use a confidence interval of your choice
92 78 94 100 100 100 60 34 42 74
92 76 94 72 100 90 62 38 44 72
86 68 90 62 92 90 58 40 46 74
82 62 90 66 94 88 60 32 18 20
8 10 22 14 16 62 62 52 62 28
1. If the numeracy test scores are normally distributed, betweenwhich two scores would the middle 68 percent of the scores lie?
2. If this numeracy test had a reliability index of 0.80,estimate the true score of a student that has an observed score of60. Use a confidence interval of your choice