Mathematics, 22.05.2021 08:30 maliyahclays
Heather runs a successful lawn-mowing business. She would like to estimate the true mean amount of time it takes for
her employees to mow a lawn. To do so, she selects a random sample of 30 customers and records the time it takes
the employees to mow their lawns. The 90% confidence interval for the true mean time it takes for her employees to
mow a lawn is 40-55 minutes. Which of the following would decrease the width of the interval?
Answers: 2
Mathematics, 21.06.2019 20:00
What is the x-intercept and y-intercept of the equation 2x+1. 2o
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Mathematics, 21.06.2019 22:30
Ineed big ! the cost of a school banquet is $25 plus $15 for each person attending. create a table, sketch the graph, and write an equation in slope-intercept and point-slope form that gives total cost as a function of the number of people attending. what is the cost for 77 people?
Answers: 1
Mathematics, 22.06.2019 01:50
The length of time it takes to find a parking space at 9 a.m. follows a normal distribution with a mean of 5 minutes and a standard deviation of 2 minutes. find the probability that it takes at least 8 minutes to find a parking space. (round your answer to four decimal places.)
Answers: 1
Heather runs a successful lawn-mowing business. She would like to estimate the true mean amount of t...
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