$2025$ - $2026$ 学年 医学科学素养Ⅱ 小测5

基础医学专业课 线下小测
测试时间: 2025.11.6 16:20 - 2025.11.6 17:30
原卷中英文分布与该卷相同, 共 2 道题目, 满分 100 分

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1. A researcher wants to test whether mean systolic blood pressure (SBP) differs among three groups of adults following different diets using one-way ANOVA:

   Group	n	SBP (mmHg)
   A (Low-salt)	5	118, 122, 119, 121, 120
   B (Regular)	5	130, 128, 132, 129, 131
   C (High-fat)	5	135, 138, 134, 136, 137

   Please perform the test and draw a conclusion (alpha = 0.05).
   (keep two-decimals during your calculation)

   
   
   

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2. Please examine whether age (x) is linearly associated with systolic blood pressure (SBP, y).

   Patient	Age (x, years)	SBP (y, mmHg)
   1	20	118
   2	25	121
   3	30	127
   4	35	130
   5	40	135
   6	45	142

   (1) Please define your model $ y = bx + a $

   (2) Please use F-test to determine if age is significantly associated with SBP (alpha = 0.05).

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