Mathematics, 09.04.2021 01:00, 2020seogang
3. P343. 13. A sociologist is interested in surveying workers in computer-related jobs to estimate the proportion of such workers who has changed jobs within the past years. (a) In the absence of preliminary data, how large a sample must be taken to ensure that a 95% con dence interval will specify the proportion to within 0:05? (b) In a sample of 100 workers, 20 of them had changed jobs within the past year. Find a 95% con dence interval for the proportion of workers who have changed jobs within the past year. (c) Based on the data in part (b), estimate the sample size needed so that the 95% con dence interval will specify the proportion to within 0:05.
Answers: 2
Mathematics, 22.06.2019 03:00, robert7248
Griffin ordered a pair of sneakers online. he had a $22 credit that he applied toward the purchase, and then he used a credit card to pay for the rest of the cost. if the shoes cost $58, how much did griffin charge to his credit card when he bought the sneakers?
Answers: 1
Mathematics, 22.06.2019 03:20, adelheidclees
Why is partitioning a directed line segment into a ratio of 1: 3 not the same as finding the length of the directed line segment?
Answers: 1
3. P343. 13. A sociologist is interested in surveying workers in computer-related jobs to estimate t...
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