Say you have data on the number of piercings a person has for 100,000 residents of...
Say you have data on the number of piercings a person has for 100,000 residents of the U.S. You want to estimate a 80% prediction interval, that is an interval that would estimate the range of piercings for the middle 80%. The data is not normal. Without transforming or manipulating the data in any way, how could you estimate a 80% prediction interval?
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Say you have data on the number of piercings a person has for
100,000 residents of...
A certain small town has a population of 5000 residents. You want to calculate a confidence...
A certain small town has a population of 5000 residents. You want to calculate a confidence interval for the average number of gallons of gas bought per month by the residents of this town. You want to be 95% confident that the true value of the population mean is within your interval, and you need to have a margin of error no higher than 10 gallons per month. Based on your previous research in similar towns, you believe that the...
A certain small town has a population of 5000 residents. You want to calculate a confidence...
A certain small town has a population of 5000 residents. You want to calculate a confidence interval for the average number of gallons of gas bought per month by the residents of this town. You want to be 95% confident that the true value of the population mean is within your interval, and you need to have a margin of error no higher than 10 gallons per month. Based on your previous research in similar towns, you believe that the...
please answer questions 7,9,10 A certain small town has a population of 5000 residents. You want to calculate a c...
please answer questions 7,9,10
A certain small town has a population of 5000 residents. You want to calculate a confidence interval for the average number of gallons of gas bought per month by the residents of this town. You want to be 95% confident that the true value of the population mean is within your interval, and you need to have a margin of error no higher than 10 gallons per month. Based on your previous research in similar towns,...
You have been hired to help estimate the average cattle output in the U.S. for last...
You have been hired to help estimate the average cattle output in the U.S. for last year. The data is available from a company and a fee is charged for each state sampled. If the range of cattle output by state (in 1000 head) is about 14,000 and they wish to have a 95% confidence interval with a bound of 1,000 for the average, how many states should be sampled? Find solution without using z-score.
Number 2 A regression analysis of 62 months’ data relating a company's monthly advertising expenses (x,...
Number 2 A regression analysis of 62 months’ data relating a company's monthly advertising expenses (x, in thousands of dollars) to its sales (y, in thousands of dollars) yields the following output: • ?0=100 • ?1=5.3 • Standard error of the estimate ?=??=56 • Standard error for ?1, ???1=0.3 Furthermore, when ?∗=9, the standard error for a confidence interval for the estimated mean response is given by ???̂=29, while the standard error for a prediction interval is ???̂=63.1. (a) (3...
Challenge: You are investigating a murder on the island of liars and truth tellers. You have...
Challenge: You are investigating a murder on the island of liars and truth tellers. You have assembled a group and you want to know if the murderer is in that group. You know that the murderer is a liar. However, you don't know which members of the group, if any are truth tellers. Moreover, you are only allowed to ask yes/no questions to the leader of the group and you want to minimize the number of questions you ask. Hint:...
The Census Bureau groups data on households into census tracts, where each census tract has a total population of about 4,000 residents. Census tracts should be divided so that the households in the c...
The Census Bureau groups data on households into census tracts,
where each census tract has a total population of about 4,000
residents. Census tracts should be divided so that the households
in the census tracts share certain characteristics, such as
economic status. Even though most tracts are around 4,000
residents, there is some variability, which is the focus of this
lab. In practice, census tracts usually have a population between
1,200 and 8,000 people.
I just need help with the...
1. The mayor is interested in finding a 90% confidence interval for the mean number of...
1. The mayor is interested in finding a 90% confidence interval for the mean number of pounds of trash per person per week that is generated in the city. The study included 209 residents whose mean number of pounds of trash generated per person per week was 34.5 pounds and the standard deviation was 7.5 pounds. Round answers to 3 decimal places where possible a.With 90% confidence the population mean number of pounds per person per week is between ___...
Lincoln works at an aged care facility that has residents from a wide range of different...
Lincoln works at an aged care facility that has residents from a wide range of different backgrounds, with many speaking English as their second language. A new manager, Isabelle, arrives and lets staff know she is keen to improve all aspects of the resident’s care and lifestyle during their time at the facility. She is met with resistance from staff as they feel they are already performing at the best of their ability. Isabelle observes the staff and finds they...
Campus Crime Data Number of Crimes Number of Police Total Enrollment Protection Cost...
Campus Crime Data Number of Crimes Number of Police Total Enrollment Protection Cost Private School 64 12 1,131 549071 1 138 21 12,954 1101952 0 141 32 16,009 1430951 0 84 22 1,682 1110683 1 86 35 2,888 2155041 1 141 45 17,407 2273268 0 135 42 3,028 2402603 1 174 50 4,306 3292910 1 201 75 34,511 5016214 0 203 84 37,240 4971815 0 125 36 2,918 2272159 1 234 109 39,414 5187901 0 143 45 4,000 4284809 1...
A certain small town has a population of 5000 residents. You want to calculate a confidence interval for the average number of gallons of gas bought per month by the residents of this town. You want to be 95% confident that the true value of the population mean is within your interval, and you need to have a margin of error no higher than 10 gallons per month. Based on your previous research in similar towns, you believe that the...
A certain small town has a population of 5000 residents. You want to calculate a confidence interval for the average number of gallons of gas bought per month by the residents of this town. You want to be 95% confident that the true value of the population mean is within your interval, and you need to have a margin of error no higher than 10 gallons per month. Based on your previous research in similar towns, you believe that the...
please answer questions 7,9,10
A certain small town has a population of 5000 residents. You want to calculate a confidence interval for the average number of gallons of gas bought per month by the residents of this town. You want to be 95% confident that the true value of the population mean is within your interval, and you need to have a margin of error no higher than 10 gallons per month. Based on your previous research in similar towns,...
Challenge: You are investigating a murder on the island of liars and truth tellers. You have assembled a group and you want to know if the murderer is in that group. You know that the murderer is a liar. However, you don't know which members of the group, if any are truth tellers. Moreover, you are only allowed to ask yes/no questions to the leader of the group and you want to minimize the number of questions you ask. Hint:...
The Census Bureau groups data on households into census tracts,
where each census tract has a total population of about 4,000
residents. Census tracts should be divided so that the households
in the census tracts share certain characteristics, such as
economic status. Even though most tracts are around 4,000
residents, there is some variability, which is the focus of this
lab. In practice, census tracts usually have a population between
1,200 and 8,000 people.
I just need help with the...
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