In the article “Patient Experience Captured by Quality-of-life Measurement in Oncology Clinical Trials” published in JAMA Network Open (Haslam, 2020), the authors reported a table summarizing ???? = 149 studies on the quality of life for cancer patients during intervention. Table 5.13 contains the summarized counts of the 149 articles published in three high-impact medical journals from 2015–2018. Use the information in Table 5.13 to answer the following questions.

(a) Estimate the proportion of studies where a quality of life assessment was made for metastatic cancer patients.

(b) Estimate the proportion of studies where a quality of life assessment was made for non-metastatic cancer patients.

(c) Compute the estimated standard error for the estimated proportion of studies where a quality of life assessment was made for metastatic cancer patients.

(d) Compute the estimated standard error for the estimated proportion of studies where a quality of life assessment was made for non-metastatic cancer patients.

(e) Compute the bound on the error of estimation associated with the estimated proportion of studies where a quality of life assessment was made for metastatic cancer patients.

(f) Compute the bound on the error of estimation associated with the estimated proportion of studies where a quality of life assessment was made for non-metastatic cancer patients.