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.
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Mathematics, 21.06.2019 21:40
The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with a mean of 12611261 chips and a standard deviation of 118118 chips. (a) determine the 2626th percentile for the number of chocolate chips in a bag. (b) determine the number of chocolate chips in a bag that make up the middle 9696% of bags. (c) what is the interquartile range of the number of chocolate chips in a bag of chocolate chip cookies?
Answers: 2
Mathematics, 21.06.2019 22:10
Using graph paper, determine the line described by the given point and slope. click to show the correct graph below.(0, 0) and 2/3
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Mathematics, 22.06.2019 00:00
Asunflower was 20 1/2 inches tall. over the next 6 months, it grew to a height of 37 inches tall. what was the average yearly growth rate of the height of the sunflower? ? plz write a proportion to solve i will give you 100 points
Answers: 2
Mathematics, 22.06.2019 00:10
Me its important ! marge runs an ice cream parlor. her speciality is triple chocolate sundaes.she can prepare 1 sundae every 2 minutes, and she earns $1.20 for each sundae she makes . if she just makes sundaes for a single shift of at most 4 hours and at least 2 hours , which function relates her earnings to the number of minutes she works?
Answers: 2
3. P343. 13. A sociologist is interested in surveying workers in computer-related jobs to estimate t...
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