4) Groups Having Routine Mammograms: A study, conducted by Jackson et al. and pu

Question

4) Groups Having Routine Mammograms: A study, conducted by Jackson et al. and published in the journal of Cancer Causes and Control in 2009, examined 33,938 women aged 40 to 84 years old who resided in California and who reported having had a mammogram within the last 2 years. The researchers were interested in characteristics of women who routinely obtain mammograms, as suggested by the American Cancer Society, to detect breast cancer. The table below provides a column that refers to the sample size and provides characteristics of the 33,938 women who were included in the study who reported having had a mammogram. Sample size 33,938 Total Race/Ethnicity Latina Asian/Pacific Islander White Other 3458 1923 2807 24,487 1263 Marital Status 17,916 16,022 Not currently married Education Less than high school High school graduate/GED Some college/tech school College or more 3599 8000 10,408 11,931 oot more Household Income Below $35K 13,164 6906 7125 6743 860K 8100K 8100K and above a) The proportion of 'Married/Living with partner' women out of the women residing in California who routinely obtain mammogram is an example of: 5 pts A) a statistic. B) a parameter C) the population. D) None of the above b) The proportion of women with 'Less than high school' education out of the women residing in California who routinely obtain mammogram is an example of 5 pts] A) the population. B) a statistic. C) a parameter D) None of the above

Explanation / Answer

a) The Proportion of "Married/living with partner " women out of the women living in California who routinely obtain mammogram is an example of :

A) a statistics

since it describes the sample data. We can drawn an inference from this statistics about the population.

b)

B) a statistics.

This is also describes the sample data.

c) The value of statistics who represents the proportion of women who have "College or more Education"

B) 11931/33938

d) Having such a large number of the respondents being white would create low variability in their responses.

Since sample size increases the variability decreases.

e) A) No, not as long as valid sampling process was used.

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