![subject](/tpl/images/cats/mat.png)
Mathematics, 25.04.2020 04:00 RealSavage4Life
A 100(1 − α)% confidence interval for the mean μ of a normal population when the value of σ is known is given by x − zα/2 · σ n , x + zα/2 · σ n . By how much must the sample size n be increased if the width of the CI above is to be halved? Halving the length requires n to be increased by a factor of . If the sample size is increased by a factor of 25
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 15:30
Avegetable garden and a surrounding path are shaped like a square that together are 11ft wide. the path is 2ft wide. find the total area of the vegetable garden and path
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:00
In a sample of 2023 u.s. adults, 373 said franklin roosevelt was the best president since world war ii. two u.s. adults are selected at random from the population of all u.s. adults without replacement. assuming the sample is representative of all u.s. adults, complete parts (a) through (d). (a) find the probability that both adults say franklin roosevelt was the best president since world war ii. the probability that both adults say franklin roosevelt was the best president since world war ii is (round to three decimal places as needed.) (b) find the probability that neither adult says franklin roosevelt was the best president since world war ii. the probability that neither adult says franklin roosevelt was the best president since world war ii is (round to three decimal places as needed.) (c) find the probability that at least one of the two adults says franklin roosevelt was the best president since world war ii. the probability that at least one of the two adults says franklin roosevelt was the best president since world war ii is (round to three decimal places as needed.) (d) which of the events can be considered unusual? explain. select all that apply. the event in part left parenthesis a right parenthesis is unusual because its probability is less than or equal to 0.05. the event in part (b) is unusual because its probability is less than or equal to 0.05. none of these events are unusual. the event in part (c) is unusual because its probability is less than or equal to 0.05.
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:30
If 2(a^2+b^2)=(a+b)^2 then, > a+b=0, > ab=0, > a=b, > 2a=b
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:30
Which equation is true? i. 56 ÷ 4·7 = 82 ÷ (11 + 5) ii. (24 ÷ 8 + 2)3 = (42 + 9)2 neither i nor ii ii only i and ii i only
Answers: 1
You know the right answer?
A 100(1 − α)% confidence interval for the mean μ of a normal population when the value of σ is known...
Questions
![question](/tpl/images/cats/istoriya.png)
History, 15.05.2021 23:20
![question](/tpl/images/cats/en.png)
English, 15.05.2021 23:20
![question](/tpl/images/cats/istoriya.png)
History, 15.05.2021 23:20
![question](/tpl/images/cats/mat.png)
Mathematics, 15.05.2021 23:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 15.05.2021 23:20
![question](/tpl/images/cats/mkx.png)
Arts, 15.05.2021 23:20
![question](/tpl/images/cats/mat.png)
Mathematics, 15.05.2021 23:20
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 15.05.2021 23:20
![question](/tpl/images/cats/en.png)
English, 15.05.2021 23:20
![question](/tpl/images/cats/istoriya.png)
History, 15.05.2021 23:20
![question](/tpl/images/cats/mat.png)
Mathematics, 15.05.2021 23:20
![question](/tpl/images/cats/mat.png)
Mathematics, 15.05.2021 23:20
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 15.05.2021 23:20
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 15.05.2021 23:20
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 15.05.2021 23:20