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soldi70 [24.7K]
3 years ago
14

Julie knows that the adult population gets, on average, eight hours of sleep each night. A hypothesis test can help her see if c

ollege students are different from the adult population. Julie tabulated that her sample of 101 students got an average of 7.1 hours of sleep each night, with a standard deviation of 2.48. Using the data provided and the formula below, what is the t-statistic that Julie calculates
Mathematics
1 answer:
Mamont248 [21]3 years ago
6 0

Answer:

-3.64

Step-by-step explanation:

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Write the fve-number summary for each set of data
oksian1 [2.3K]

Answer:

Step-by-step explanation:

first arrange the data from ascending to decending order

1,5,8,10,11,14,17,19,20,23

Q1=(N+1)/4

=(10+1)/4

=11/4

=2.75

=2 nd item+(3 rd -2 nd)term

=5+(8-5)

=5+3

=8

Q2=(N+1)/2

=(10+1)/2

=11/2

=5.5 term

=(5 th term+6 th term)

=(11+14)/2

=25/2

=12.5

Q3=3(N+1)/4

=3(10+1)/4

=3*11/4

=33/4

=8.25

=8 th term +(9 th -8 th )term

=19+(20-19)

=19+1

=20

3 0
3 years ago
Find the value of x and y​
ra1l [238]

Answer:

here is the answer

Step-by-step explanation: x = 120, y = 150

hope this helped:)

6 0
3 years ago
Which expression is equivalent to 2x^2 - 2x + 7?
IgorC [24]

Answer:

(o,7) vertical intercept

minimum (1/2 , 13/2)

4 0
3 years ago
Find ten rational numbers between -2/3 and 2/3
Mama L [17]

Answer:

-2/3= -20/30

2/3 = 20/30

so rational numbers in between are

-19/30, -18/30, -17/30,........ -1/30, 0,+1/30,.............+17/30, +18/30, +19/30

so you can write as many as you like

8 0
3 years ago
What critical value of t should be used for a 95% confidence interval for the population mean based on a random
Liula [17]

Answer:

did you get this answer yet?

3 0
3 years ago
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