Exercise 18 Statistics
Sohal, S
04/05/11
(HLT-362 V) Applied Statistics for Healthcare Professionals
Exercise 18
Q1. Assuming that the distribution is normal for weight relative to the ideal and 99% of the male participants scored between ( - 53.68, 64.64),where did 95% of the values for weight relative to the ideal lie? Round your answer to two decimal places.
Answer: Mean of weight relative to ideal = 5.48 and Standard Deviation (σ) = 22.93. Calculation: (x bar) 1.96(σ)
5.48± 1.96(22.93)
5.48 - 1.96(22.93) = 5.48 - 44.94 = (-39.46)
5.48 + 1.96(22.93) = 5.48 + 44.94 = 50.42
Expressed as (-39.46, 50.42)
Q2. Which of the following values from Table 1 tells us about variability of the scores in a distribution?
a. 60.22
b. 11.94
c. 22.57
d. 53.66
Answer: c
Q3. Assuming hat the distribution for General health Perceptions is normal, 95% of the female’s scores around the mean were between what values? Round your answer to two decimal places.
Answer: x bar = 39.71, σ = 25.46
Calculation: (x bar) 1.96(σ)
39.71 ± 1.96(25.46)
39.71 – 1.96(25.46) = 39.71 – 49.90 = (-10.19)
39.71 + 1.96(25.46) = 39.71+ 49.90 = 89.61
Expressed as (-10.19, 89.61)
Q4. Assuming that the distribution of scores for Pain is normal, 95% of the men's scores around the mean were between what two values? Round your answer to two decimal places.
Answer: (x bar) = 52.53, σ = 30.90
Calculation: (x bar) 1.96(σ)
52.53 ± 1.96(30.90)
52.53 – 1.96(30.90) = 52.53 – 60.56 = (-8.03)
52.53 + 1.96(30.90) = 52.53+ 60.56 = 113.09
Expressed as (-8.03, 113.09)
Q5. Were the body image scores significantly different for women versus men? Provide a rationale for your answer.
Answer: Yes, the body image scores for women were significantly higher (73.07 ± 16.93), then men (60.22 ± 16.98). It indicates a positive correlation between quality of life and improved body image.
Q6. Assuming that the distribution of Mental Health scores for men is normal, where are 99% of the men's Mental health scores around
04/05/11
(HLT-362 V) Applied Statistics for Healthcare Professionals
Exercise 18
Q1. Assuming that the distribution is normal for weight relative to the ideal and 99% of the male participants scored between ( - 53.68, 64.64),where did 95% of the values for weight relative to the ideal lie? Round your answer to two decimal places.
Answer: Mean of weight relative to ideal = 5.48 and Standard Deviation (σ) = 22.93. Calculation: (x bar) 1.96(σ)
5.48± 1.96(22.93)
5.48 - 1.96(22.93) = 5.48 - 44.94 = (-39.46)
5.48 + 1.96(22.93) = 5.48 + 44.94 = 50.42
Expressed as (-39.46, 50.42)
Q2. Which of the following values from Table 1 tells us about variability of the scores in a distribution?
a. 60.22
b. 11.94
c. 22.57
d. 53.66
Answer: c
Q3. Assuming hat the distribution for General health Perceptions is normal, 95% of the female’s scores around the mean were between what values? Round your answer to two decimal places.
Answer: x bar = 39.71, σ = 25.46
Calculation: (x bar) 1.96(σ)
39.71 ± 1.96(25.46)
39.71 – 1.96(25.46) = 39.71 – 49.90 = (-10.19)
39.71 + 1.96(25.46) = 39.71+ 49.90 = 89.61
Expressed as (-10.19, 89.61)
Q4. Assuming that the distribution of scores for Pain is normal, 95% of the men's scores around the mean were between what two values? Round your answer to two decimal places.
Answer: (x bar) = 52.53, σ = 30.90
Calculation: (x bar) 1.96(σ)
52.53 ± 1.96(30.90)
52.53 – 1.96(30.90) = 52.53 – 60.56 = (-8.03)
52.53 + 1.96(30.90) = 52.53+ 60.56 = 113.09
Expressed as (-8.03, 113.09)
Q5. Were the body image scores significantly different for women versus men? Provide a rationale for your answer.
Answer: Yes, the body image scores for women were significantly higher (73.07 ± 16.93), then men (60.22 ± 16.98). It indicates a positive correlation between quality of life and improved body image.
Q6. Assuming that the distribution of Mental Health scores for men is normal, where are 99% of the men's Mental health scores around