Health

Health, 15.10.2019 17:30, hayleyconsole

What is the recommended number of hours of sleep a teenager should get each night?

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Mathematics, 28.06.2019 05:30, johnnyhalusewa

The results of a national survey showed that on average, adults sleep 6.9 hours per night. suppose that the standard deviation is 1.2 hours and that the number of hours of sleep fol- lows a bell-shaped distribution. a. use the empirical rule to calculate the percentage of individuals who sleep between 4.5 and 9.3 hours per day. b. what is the z-value for an adult who sleeps 8 hours per night? c. what is the z-value for an adult who sleeps 6 hours per night?

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Mathematics, 07.07.2019 15:00, trin4613

Asurvey was conducted at springdale high to find the number of hours students sleep at night. the histogram shows the data collected in this survey. which statement about the number of hours students sleep is true? a. seventeen students sleep between 6 and 8 hours at night. b. seventeen students sleep for 6 hours at night. c. ten students sleep for 4 hours at night. d. six students sleep between 2 and 4 hours at night. e. four students sleep for 10 hours at night.

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Mathematics, 21.07.2019 14:00, mistydsargentp5wrh4

Asurvey was conducted at springdale high to find the number of hours students sleep at night. the histogram shows the data collected in this survey. which statement about the number of hours students sleep is true? seventeen students sleep between 6 and 8 hours at night. seventeen students sleep for 6 hours at night. ten students sleep for 4 hours at night. six students sleep between 2 and 4 hours at night. four students sleep for 10 hours at night.

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Mathematics, 02.09.2019 03:30, vshelton6549

In a survey at a local university, 62% of students say that they get less than the recommended eight hours of sleep per night. in a group of 4800 students, how many would you expect get eight or more hours of sleep per night? students get eight or more hours of sleep per night?

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