Mathematics, 16.04.2021 01:00 YoEsMyles3115
In a study of 225 adults, the average heart rate was 72 beats per minute. Assume the population of heart rates is known to be approximately normal, with a standard deviation of 10 beats per minute. What does a margin of error of 1.1 for the 90% confidence interval of the average beats per minute mean?
There is a 90% chance that the population mean is between 70.9 and 73.1 beats per minute.
There is a 90% chance that the population mean is between 62 and 82 beats per minute.
There is a 10% chance that the population mean is less than 72 beats per minute.
There is a 10% chance that the population mean is more than 72 beats per minute.
Answers: 3
Mathematics, 21.06.2019 17:30
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Mathematics, 22.06.2019 01:00
On friday, there were x students at the baseball game. on monday, there were half as many students at the game as there were on friday. on wednesday, there were 32 fewer students at the game as there were on friday. which expression could represent the total number of tickets sold for all 3 games?
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In a study of 225 adults, the average heart rate was 72 beats per minute. Assume the population of h...
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