Reference no: EM131399146
Refer to Exercise concerning feelings about weight. To compare the men and women, draw a bar graph of the percents found in parts (c) and (d). Use Figure for guidance.
Exercise
A sample of college students was asked how they felt about their weight. Of the 143 women in the sample who responded, 38 women said that they felt overweight, 99 felt that their weight was about right, and 6 felt that they were underweight. Of the 78 men in the sample, 18 men felt that they were overweight, 35 felt that their weight was about right, and 25 felt that they were underweight (Data source: pennstate3 dataset on the companion website).
a. In the relationship between feelings about weight and sex, which variable is the explanatory variable and which is the response variable?
b. Summarize the observed counts by creating a table similar to Table 2.3 (p. 22).
c. For the 143 women, find the percentage responding in each category for how they felt about their weight.
d. For the 78 men, find the percentage responding in each category for how they felt about their weight.
e. Using the percentages found in parts (c) and (d), summarize how the women and men differed in how they felt about their weight.
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Table : Nighttime Lighting in Infancy and Eyesight
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Slept with:
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No Myopia
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Myopia
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High Myopia
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Total
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Darkness
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155(90%)
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15(9%)
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2(1%)
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172 (100%)
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Nightlight
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153(66%)
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72(31%)
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7(3%)
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232(100%)
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Full Light
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34(45%)
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36(48%)
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5(7%)
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75(100%)
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Total
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342(71%)
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123(26%)
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14 (3%)
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479(100%)
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Find the percentage responding in each category
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