Mathematics, 28.11.2019 00:31, josue718
In the u. s., there are two sources of national statistics on crime rates: (i) the fbi's uniform crime reporting program, which publishes summaries on all crimes reported to police agencies in jurisdictions covering virtually 100% of the us.(ii) the national crime survey (ncs), which is based on in terviews with a nationwide probability sample of households. in 1992, 4.9% of the households in the ncs sample told the interviewers thev had experi- enced a burglary within the past 12 months. the same year, the fbi reported a burglary rate of 32 per 1,000 households, or 3.2%, for the us. as a whole. if the fbi's 3.2% figure is the true burglary rate for the population of us households in 1992, what is the probability that the national crime survey would obtain a result of 4.9% or more? you may assume that the ncs is based on a simple random sample of 50,000 households out of a population of 100 million households. what do you conclude?
Answers: 2
Mathematics, 21.06.2019 14:30, glowbaby123
Jack lives on a farm and has a large backyard. the area of his rectangular backyard is of a square mile. if the width of the yard is of a mile, what fraction of a mile is the length of the rectangular backyard?
Answers: 2
Mathematics, 21.06.2019 21:40, salinasroel22
In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.
Answers: 3
In the u. s., there are two sources of national statistics on crime rates: (i) the fbi's uniform cr...
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