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Programming Assignment 3: Quiz:R Programming(Data Science Specialization):Answers2025

Question 1

best("SC", "heart attack")

MUSC MEDICAL CENTER
❌ CAROLINAS HOSPITAL SYSTEM
❌ MARY BLACK MEMORIAL HOSPITAL
❌ GRAND STRAND REG MED CENTER
❌ LAKE CITY COMMUNITY HOSPITAL
❌ MCLEOD MEDICAL CENTER – DARLINGTON

Explanation:
For South Carolina (“SC”), MUSC Medical Center has the lowest (best) 30-day mortality rate for heart attacks.


Question 2

best("NY", "pneumonia")

MAIMONIDES MEDICAL CENTER
❌ BROOKS MEMORIAL HOSPITAL
❌ HOSPITAL FOR SPECIAL SURGERY
❌ CROUSE HOSPITAL
❌ KINGSBROOK JEWISH MEDICAL CENTER
❌ NORTHERN DUTCHESS HOSPITAL

Explanation:
In New York, Maimonides Medical Center has the lowest pneumonia mortality rate in the dataset.


Question 3

best("AK", "pneumonia")

YUKON KUSKOKWIM DELTA REG HOSPITAL
❌ MT EDGECUMBE HOSPITAL
❌ CENTRAL PENINSULA GENERAL HOSPITAL
❌ CORDOVA COMMUNITY MEDICAL CENTER
❌ PROVIDENCE ALASKA MEDICAL CENTER
❌ ALASKA NATIVE MEDICAL CENTER

Explanation:
For Alaska, Yukon Kuskokwim Delta Regional Hospital performs best in pneumonia outcomes.


Question 4

rankhospital("NC", "heart attack", "worst")

WAYNE MEMORIAL HOSPITAL
❌ CATAWBA VALLEY MEDICAL CENTER
❌ SPRUCE PINE COMMUNITY HOSPITAL
❌ CAROLINAS MEDICAL CENTER-NORTHEAST
❌ THOMASVILLE MEDICAL CENTER
❌ WAKEMED, CARY HOSPITAL

Explanation:
For North Carolina, the worst (highest) mortality rate for heart attack patients is at Wayne Memorial Hospital.


Question 5

rankhospital("WA", "heart attack", 7)

YAKIMA VALLEY MEMORIAL HOSPITAL
❌ ST ANTHONY HOSPITAL
❌ KADLEC REGIONAL MEDICAL CENTER
❌ JEFFERSON HEALTHCARE HOSPITAL
❌ TACOMA GENERAL ALLENMORE HOSPITAL
❌ KENNEWICK GENERAL HOSPITAL

Explanation:
In Washington, the 7th best hospital for heart attacks is Yakima Valley Memorial Hospital.


Question 6

rankhospital("TX", "pneumonia", 10)

SETON SMITHVILLE REGIONAL HOSPITAL
❌ UNIVERSITY OF TEXAS HEALTH SCIENCE CENTER AT TYLER
❌ SCENIC MOUNTAIN MEDICAL CENTER
❌ PROVIDENCE MEMORIAL HOSPITAL
❌ MEMORIAL HERMANN NORTHEAST
❌ WEST HOUSTON MEDICAL CENTER

Explanation:
In Texas, the 10th ranked hospital for pneumonia care is Seton Smithville Regional Hospital.


Question 7

rankhospital("NY", "heart attack", 7)

BELLEVUE HOSPITAL CENTER
❌ FOREST HILLS HOSPITAL
❌ NASSAU UNIVERSITY MEDICAL CENTER
❌ FLUSHING HOSPITAL MEDICAL CENTER
❌ ADIRONDACK MEDICAL CENTER
❌ UNIVERSITY HOSPITAL S U N Y HEALTH SCIENCE CENTER

Explanation:
For New York, the 7th best heart attack hospital is Bellevue Hospital Center.


Question 8

r <- rankall("heart attack", 4)
as.character(subset(r, state == "HI")$hospital)

CASTLE MEDICAL CENTER
❌ ST FRANCIS MEDICAL CENTER
❌ PARKLAND HEALTH AND HOSPITAL SYSTEM
❌ CLARK REGIONAL MEDICAL CENTER
❌ NORTH COUNTRY HOSPITAL AND HEALTH CENTER
❌ SANFORD USD MEDICAL CENTER

Explanation:
In Hawaii, the 4th best heart attack hospital (from rankall) is Castle Medical Center.


Question 9

r <- rankall("pneumonia", "worst")
as.character(subset(r, state == "NJ")$hospital)

BERGEN REGIONAL MEDICAL CENTER
❌ LAKES REGION GENERAL HOSPITAL
❌ LAURENS COUNTY HEALTHCARE SYSTEM
❌ BAY AREA HOSPITAL
❌ POTTSTOWN MEMORIAL MEDICAL CENTER
❌ TERREBONNE GENERAL MEDICAL CENTER

Explanation:
For New Jersey, the worst pneumonia outcome belongs to Bergen Regional Medical Center.


Question 10

r <- rankall("heart failure", 10)
as.character(subset(r, state == "NV")$hospital)

RENOWN SOUTH MEADOWS MEDICAL CENTER
❌ CARY MEDICAL CENTER
❌ YORK GENERAL HOSPITAL
❌ NA
❌ HAWAII MEDICAL CENTER EAST
❌ CARONDELET ST JOSEPHS HOSPITAL

Explanation:
For Nevada, the 10th ranked hospital in heart failure performance is Renown South Meadows Medical Center.


🧾 Summary Table

Q# ✅ Correct Answer Key Concept
1 MUSC Medical Center Best heart attack hospital (SC)
2 Maimonides Medical Center Best pneumonia hospital (NY)
3 Yukon Kuskokwim Delta Reg Hospital Best pneumonia hospital (AK)
4 Wayne Memorial Hospital Worst heart attack hospital (NC)
5 Yakima Valley Memorial Hospital 7th best heart attack hospital (WA)
6 Seton Smithville Regional Hospital 10th best pneumonia hospital (TX)
7 Bellevue Hospital Center 7th best heart attack hospital (NY)
8 Castle Medical Center 4th best heart attack hospital (HI)
9 Bergen Regional Medical Center Worst pneumonia hospital (NJ)
10 Renown South Meadows Medical Center 10th best heart failure hospital (NV)