Mathematics, 05.05.2020 18:19 hunttj
An article reported that for a sample of 52 kitchens with gas cooking appliances monitored during a one-week period, the sample mean CO2 level (ppm) was 654.16, and the sample standard deviation was 164.55.
a) calculate and interpret a 95% confidence interval for true average CO2 level in the population of all homes from which the sample was selected .
b) Suppose the investigators had made a rough guess of 175 for the value of s before collecting data .What sanple size would be necessary to obtain an interval width of 50 ppm for confidence level of 95% ?
Answers: 2
Mathematics, 21.06.2019 18:00
Polygon hh is a scaled copy of polygon gg using a scale factor of 1/4. polygon h's area is what fraction of polygon g's area?
Answers: 3
Mathematics, 21.06.2019 21:30
How do your peer relationships affect your overall health status? what can you do to improve your peer relationships?
Answers: 1
Mathematics, 22.06.2019 00:30
What is the sum of the geometric series in which a1 = 7, r = 3, and an = 1,701? hint: cap s sub n equals start fraction a sub one left parenthesis one minus r to the power of n end power right parenthesis over one minus r end fraction comma r ≠ 1, where a1 is the first term and r is the common ratio
Answers: 1
An article reported that for a sample of 52 kitchens with gas cooking appliances monitored during a...
Mathematics, 13.10.2020 06:01
English, 13.10.2020 06:01
History, 13.10.2020 06:01
History, 13.10.2020 06:01
Mathematics, 13.10.2020 06:01
History, 13.10.2020 06:01
Chemistry, 13.10.2020 06:01
Health, 13.10.2020 06:01
Mathematics, 13.10.2020 06:01
Spanish, 13.10.2020 06:01
English, 13.10.2020 06:01
Mathematics, 13.10.2020 06:01