Mathematics, 16.04.2020 20:56 amandapill
A sample of 148 college students at a large university reports getting an average of 6.85 hours of sleep last night with a standard deviation of 2.12 hours. Suppose you want to conduct a similar study at your university. Assuming that the standard deviation of the above sample is a reasonable estimate of the standard deviation of sleep time at your university, how many students do you need to survey to estimate the mean sleep time of students at your university with 95% confidence and a margin of error of 0.5 hours
Answers: 2
Mathematics, 21.06.2019 21:30
Janice determined there were 10 possible outcomes when tossing two coins and spinning a spinner numbered 1 through 6. what is the correct number? what might have been janice's error?
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Mathematics, 22.06.2019 03:30
Bob paid $3 less than tim at a local pizza parlor. together they spent $7.80. how much did bob pay for pizza?
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Mathematics, 22.06.2019 07:30
Find the inverse of each function for problems 1–6. state the domain and range of both the function and its inverse. restrict the domain of the function if needed. 1. f(x) = –x2 2. f(x)=5x–1 3. f(x)=–x+3 4. f(x)=x2+7 5. f(x)=14x−4 6. f(x)=–3x+8
Answers: 1
A sample of 148 college students at a large university reports getting an average of 6.85 hours of s...
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