Mathematics, 07.04.2021 01:30 arod20061
A friend tells you that she has conducted a survey to find the proportion of people in her university that utilize the campus internet cafe at least once a day. she has collected a sample and calculated a sample proportion of p^ = 0.31. she uses this value to calculate a confidence interval for the population proportion. your friend says that she is not going to tell you the sample size or the level of confidence used in her construction, and wants you to guess what the confidence interval is. she gives you 5 options.
Answers: 2
Mathematics, 21.06.2019 14:30
Shania's test scores in 8 subjects were 88, 91, 85, 74, 69, 72, 80, and 87. shania found the middle number of her scores. which type of measure did she find?
Answers: 1
Mathematics, 21.06.2019 19:00
Atheater wants to build movable steps that they can use to go on and off the stage. they want the steps to have enough space inside so they can also be used to store props. how much space is inside the steps?
Answers: 1
Mathematics, 21.06.2019 21:40
The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?
Answers: 2
A friend tells you that she has conducted a survey to find the proportion of people in her universit...
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