Determining the prediction interval

Reference no: EM13965338

1. The following are midterm and ?nal examination test scores for 10 calculus students, where x denotes the midterm score and y denotes the ?nal score for each student.

x	68	87	75	91	82	77	86	82	75	79
y	74	89	80	93	88	79	97	95	89	92

Obtain a 95% prediction interval for x = 92 and interpret its meaning.

2. The following data give the annual incomes (in thousands of dollars) and amounts (in thousands of dollars) of life insurance policies for eight persons.

Annual income	42	58	27	36	70	24	53	37
Life insurance	150	175	25	75	250	50	250	100

Obtain a 90% prediction interval for x = 59 and interpret its meaning.

Reference no: EM13965338

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