interview all patients from 3 hospitals in Houston. (enter a letter: A- Random, B- Systematic, C- Stratified, D- Cluster)
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interview all patients from 3 hospitals in Houston. (enter a letter: A- Random, B- Systematic, C- Stratified, D- Cluster)
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- A buyer of a new sedan can custom order the car by choosing from 5 different exterior colors, 3 different interior colors, 2 sound systems, 3 motor designs, and either manual or automatic transmission. How many choices does the buyer have?Select 4 people from each room in a building. (enter a letter: A- Random, B- Systematic, C- Stratified, D- Cluster)A writer for an art magazine randomly selects and interviews fifty male and fifty female artists. What sampling technique is used?
- sample size is 400 East is 34%In a classroom there are 28 tablets which includes 5 that are defective. If seven tablets are chosen at random to be used by student groups, how many selections contain 2 defective tablets?Huck Finn is interested in the average length of catfish in the Mississippi river bordering St. Louis. To collect his sample, Huck breaks the river into 5 regions and catches 8 catfish from each region. What method did Huck use to select his sample?
- A veterinary clinic reports that out of 3,412 animals registered at the clinic, 1,712 are dogs, 1,012 are cats and the rest are rodents or birds. What is the population proportion, p, for dogs at the clinic?Pablo randomly picks five marbles from a bag of eleven marbles (six red ones, three green ones, and two yellow ones). How many outcomes are there in the sample space?Horace Horsecollar is interested in the opinion of vacationers at Disney World. He creates a short survey and administers it to every 1000th person to enter the park, starting with the 364th person. What method did Horace use to select his sample?
- 47 of 50To protect baby scallops and ensure the survival of the species, the U.S. Fisheries and WildlifeService requires that an average scallop must weigh at least 1/36 pound. The harbormaster at a Massachusetts port randomly selected 18 bags of scallops from 11,000 bags on an arriving ves-sel. From each bag, agents took a large scoop of scallops, separated and weighed the meat, and divided by the number of scallops in the scoop, f nding a mean weight of 1/39 pound. (a) Wouldthe population of 11,000 bags be considered effectively inf nite in this case? (b) Which valuerepresents a sample statistic: 1/36 or 1/39?
