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5. A survey organization takes a simple random sample of 625 households from a city of 80,000 households. On the average
Posted: Wed May 11, 2022 12:34 pm
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- 5 A Survey Organization Takes A Simple Random Sample Of 625 Households From A City Of 80 000 Households On The Average 1 (45.83 KiB) Viewed 20 times
5. A survey organization takes a simple random sample of 625 households from a city of 80,000 households. On the average, there are 2.3 people per sampled household, and the SD is 1.75. Circle TRUE or FALSE for each statement, and include a sentence to explain your answer. (Both must be correct to receive full credit.) Show how you get the 95% confidence. (a) TRUE or FALSE: If we use the sample average to estimate the population average, the estimate is likely to be off by about 0.07 people. Explanation: (6) TRUE or FALSE: A 95%-confidence interval for the average household size in the sample is 2.16 people to 2.44 people. Explanation: (C) TRUE or FALSE: 95% of the households in the city contain between 2.16 and 2.44 people. Explanation: (d) TRUE or FALSE: The average household size in the whole city is between 2.16 and 2.44 with probability 95%. Explanation: (e) TRUE or FALSE: Household size in the city approximately follows the normal curve. Explanation: