In the year 2020, City A had a population of 200,000. 300 existing cases of colon cancer were reported, 180 of which were diagnosed in 2020. 150 deaths were attributed to colon cancer. What measure would you use to estimate the need for resources devoted to colon cancer treatment? What measure would you use to estimate the average risk of colon cancer? What measure would you use to estimate the death rate for colon cancer? What measure would you use to estimate the proportion of colon cancers that are fatal?

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A: Given that there are 100 people. Therefore, the table becomes,    0-3 km distance 3-6 km distance…

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Q: If the number of respondents in the study was approximately 44,947, estimate how many stated that…

A: answer is below

Q: A sample selected from a population gave a sample proportion equal to 0.60.

A:

Q: (c) If the average cost of travel by bus increases by 10%, but the travel time by bus de- creases by…

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Q: 104 concert-goers at the Glass House in Pomona, California were asked if they know how to play an…

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Q: How large the sample size should be in order to be 98 percent confident, if the sample proportion is…

A: Given data, p=0.78 E=0.16 z-value at 98% confidence is Zc=2.326 n=?

Q: The table summarizes results from pedestrian deaths that were caused by automobile accidents.…

A: Given information:   Pedestrian Intoxicated?     Driver Intoxicated? Yes No Total Yes 54 79…

Q: In a study between the amount of rainfall (X) and the quantity of air pollution (Y) removed, the…

A: Given data set is x y 4.3 126 4.5 121 5.9 116 5.6 118 6.1 114 5.2 118 3.8 132 2.1…

Q: In a sample of 508 men who worked at home, 32% of them were college graduates. a.) Among the 508 men…

A:

Q: A group of preschoolers has 15 boys and 12 girls. What is the ratio of girls to boys as a…

A: The group has, 15 boys and 12 girls. So, the ratio of girls to boys is, 12 : 15 = 4 : 5

Q: If 90% of the athletes who test positive for steroids in fact use them, and 10% of all athletes use…

A:

Q: Because of safety considerations, in May 2003 the Federal Aviation Administration (FAA) changed its…

A: Confidence interval : ( 180.024, 185.976) interpretation: b. We are 95% confident that the true…

Q: Two doctors asked 6 of their patients, who were smokers, how many years they had smoked. In…

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Q: A. What was the population in 1850?

A:

Q: A company took a survey about its new product. 7,200 people liked the new product and 800 people did…

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Q: A researcher reports an F-ratio with df = 3, 36 from an independent-measures research study. How…

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A: Required probability is P(tested positive | have disease)

Q: A researcher wishes to estimate the proportion of corporate executives whose annual salary is over…

A:

Q: 4. A farmer estimated that there were 25 gallons of water left in a tank. If this is an…

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Q: Two doctors asked 6 of their patients, who were smokers, how many years they had smoked. In…

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Q: At Roxbury Community College, 7 out of every 10 students take introduction to Statistics. If there…

A: given data  N = 2500 students total in college  7 out of every 10 students take introduction to…

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Q: An immunologist is interested in whether the number of symptoms of the flu a person first exhibits…

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Q: A group of researchers want to investigate the academic performance of the college students in…

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Q: Because of safety considerations, in May 2003 the Federal Aviation Administration (FAA) changed its…

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Q: For the  past month, 60 new cases of a disease were added to an existing 540 cases. If 2500 people…

A: New cases = 60  Existing cases = 540 Total Cases = 600

Q: The American Heart Association is about to conduct an anti-smoking campaign and wants to know the…

A:

Q: What is the percentage of households with an intensified waste management system (dark green)?

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Q: At what glucose level cutoff would we identify 100 % of diabetics?

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Q: In a pharmaceutical company, the proportion of injection bottles found defective were 0.2, 0.1, 0.8,…

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Q: The US population is 13% African American.  If you were to take a SRS of 500 Americans, below what…

A: From the given data The US population is 13% African American

Q: The brand manager for a brand of toothpaste must plan a campaign designed to increase brand…

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Q: If a person’s z-score equalas 2.08, what is their percentile? Thank you.

A: Our aim is to find the percentile.

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A: The U.S. Hispanic  populations reached a record 60.6 million in 2019, up 930,000 over the previous…

Q: (a) What proportion of combined GRE scores can be expected to be over 163.4? (b) What proportion of…

A: mean = 150 s = 8.8

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A: The table shows the cars and annual revenue.

Q: A survey shows that 3 out of 4 of those drink coffee in a town with a population is 7900 adults how…

A:

Q: A business department is trying to determine if their program is competitive. They survey recent…

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Q: A group of 100 people, who lived at varying distances (in kilometers) from an island nuclear power…

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2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.