Mathematics, 30.06.2020 06:01 Mystical3Sparkle
The owner of Limp Pines Resort wanted to know the average age of its clients. A random sample of 25 tourists is taken. It shows a mean age of 46 years with a standard deviation of 5 years. The width of a 98 percent confidence interval for the true mean client age is approximately:.
A. ± 2.492 years.
B. ± 1.711 years.
C. ± 2.326 years.
D. ± 2.797 years.
Answers: 2
level, that is the subtraction of 1 by the confidence interval divided by 2. So:
.
, so ![z = 2.326/tex]Now, find the width of the interval[tex]W = z*\frac{\sigma}{\sqrt{n}}](/tpl/images/0697/2328/95890.png)
is the standard deviation of the population and n is the size of the sample.
Another question on Mathematics
Mathematics, 21.06.2019 18:30
Which equation represents the model shown? a)1/3 divide 1/6 = 2 b)2/3 divide 1/6 = 2/18 c)1/3 divide 1/6 = 1/18 d)2/3 divide 1/6 =4
Answers: 1
Mathematics, 21.06.2019 21:10
What is the domain of the given function? {(3,-2), (6, 1), (-1, 4), (5,9), (-4, 0); o {x | x= -4,-1, 3, 5, 6} o {yl y = -2,0, 1,4,9} o {x|x = -4,-2, -1,0, 1, 3, 4, 5, 6, 9} o y y = 4,-2, -1, 0, 1, 3, 4, 5, 6, 9}
Answers: 1
Mathematics, 22.06.2019 00:30
Kevin has a spinner that has 10 equal sections and 2 sections of each color—red, blue, green, yellow, and purple. kevin spins the spinner 180 times. kevin determines about how many times the spinner will land on red or green, and his work is shown below. -kevin has the formula reversed; it should be the total number of sections over the number of red or green sections. -kevin should have used a 4 in the numerator because there are 2 red sections and 2 green sections. -kevin should multiply by the number of sections in the spinner rather than the total number of spins. -kevin calculated the prediction correctly and did not make any mistakes.
Answers: 1
You know the right answer?
The owner of Limp Pines Resort wanted to know the average age of its clients. A random sample of 25...
Questions
Mathematics, 10.07.2019 07:10
Mathematics, 10.07.2019 07:10
Spanish, 10.07.2019 07:10
Social Studies, 10.07.2019 07:10
Mathematics, 10.07.2019 07:10
Mathematics, 10.07.2019 07:10
Mathematics, 10.07.2019 07:10
