subject
Mathematics, 17.12.2021 05:20 victory08

If I tell my kid "Go to bed" the amount of time it takes for her to actually go to bed is normally distributed with a standard deviation of 8.6 minutes. I want an 83% confidence interval to estimate the average time that it takes my 2.5 year old daughter to go to bed after saying "Go to bed" the first time. I collected the sample for 15 nights and the mean time over 15 nights is 29.18 minutes. What is the z-score I will need for my confidence interval? Use three decimal places lower end of the interval (use three decimal places): upper end of the interval (use three decimal places): Now assume that the standard deviation is not known and the sample standard deviation is 8.2 minutes. I will again construct a 83% confidence interval. Lower end of the interval (use three decimal places): Upper end of the interval (use three decimal places):

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 15:10
Figure abcde is a regular pentagon. segment ae is located at a (2, 1) and e (4, 1). what is the perimeter of abcde? 4 units 6 units 8 units 10 units
Answers: 1
question
Mathematics, 21.06.2019 16:30
Which elements in the set below are integers? 12, –3⁄4,√ 25 , –7, √ 5 , 14⁄7, 9 a. 12, √ 25 , –7, 9 b. 12, √ 25 , –7, 14⁄7, 9 c. –3⁄4, 25 , √ 5 ,14⁄7 d. 12, –7, 9
Answers: 2
question
Mathematics, 21.06.2019 20:40
Lines a and b are parallel. what is the value of x? -5 -10 -35 -55
Answers: 2
question
Mathematics, 22.06.2019 00:30
What are the greatest common factor of 75 and 30
Answers: 2
You know the right answer?
If I tell my kid "Go to bed" the amount of time it takes for her to actually go to bed is normally d...
Questions
question
Mathematics, 03.08.2020 23:01
question
Mathematics, 04.08.2020 01:01
question
Mathematics, 04.08.2020 01:01
question
Mathematics, 04.08.2020 01:01
question
English, 04.08.2020 01:01
question
Mathematics, 04.08.2020 01:01
Questions on the website: 13722362