A. You selected a simple random sample of 225 households from a city. In this sample...
A. You selected a simple random sample of 225 households from a city. In this sample of 225 households, 81 households subscribe to Netflix. Let π denote the proportion of households in this city who subscribe to Netflix. Construct a 99% confidence interval for π. (Show work)
B. A city has 50,000 households. You have drawn a simple random sample of 400 households from this city. In this sample of 400 households, 60 households own hybrid vehicles. At a 99% level of confidence, test the null hypothesis that not more than 5000 out of the 50,000 households in this city own hybrid vehicles. (Show work)
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A. You selected a simple random sample of 225 households from a
city. In this sample...
A random sample of 540 households from a certain mid-western city was selected, and it was...
A random sample of 540 households from a certain mid-western city was selected, and it was determined that 126 of these households owned at least one firearm. Using a 98% confidence level, calculate a lower confidence bound for the proportion of all households in this city that own at least one firearm. (Give your answer to 3 decimal places.) 191 X
A random sample of 526 households from a certain mid-western city was selected, and it was...
A random sample of 526 households from a certain mid-western city was selected, and it was determined that 136 of these households owned at least one firearm. Using a 99% confidence level, calculate a lower confidence bound for the proportion of all households in this city that own at least one firearm. (Give your answer to 3 decimal places.) 0.209 X You may need to use the appropriate table in the Appendix of Tables to answer this question Need Help?...
In a large population, 67% of the households have cable tv. A simple random sample of...
In a large population, 67% of the households have cable tv. A simple random sample of 81 households is to be contacted and the sample proportion computed. What is the probability that the sampling distribution of sample porportions is less than 63%?
O A simple random sample of sirena 400 Individuals who are currently employed is asked by...
O A simple random sample of sirena 400 Individuals who are currently employed is asked by wow tome once per week of the 2002 Construct a 99% confidence interval for the population proportion of employed individuals who wok home that one per The lower bound is found to three decimal places as needed) The upper bound is Round to three decimal places as needed) A simple random sample of size 400 individuals who are current employed is asked they work...
1- In a large population, 67% of the households have cable tv. A simple random sample...
1- In a large population, 67% of the households have cable tv. A simple random sample of 81 households is to be contacted and the sample proportion computed. What is the probability that the sampling distribution of sample porportions is less than 63%?
How many computers? In a simple random sample of 185 households, the sample mean number of...
How many computers? In a simple random sample of 185 households, the sample mean number of personal computer ls was 1.64. assume the population of the standard deviation is 0.47 a) construct a 99.9% confidence interval for the mean number of personal computers. round the answer to at least two decimal places. a 99.9% confidence interval for the mean number of personal computers is ---< mean <----- 2) In a sample of 75 clamps, the mean step to complete this...
A simple random sample of size n equals 400 individuals who are currently employed is asked...
A simple random sample of size n equals 400 individuals who are currently employed is asked if they work at home at least once per week. Of the 400 employed individuals surveyed, 26 responded that they did work at home at least once per week. Construct a 99% confidence interval for the population proportion of employed individuals who work at home at least once per week.
A researcher examined a random sample of 300 homes in a small city and found that...
A researcher examined a random sample of 300 homes in a small city and found that 52 had solar panels installed on their roofs. Use the sample to construct a 99% confidence interval for the proportion of all homes in the city that have solar panels installed on their roofs. What is the 99% confidence interval?
A simple random sample of size n = 40 is drawn from a population. The sample...
A simple random sample of size n = 40 is drawn from a population. The sample mean is found to be x= 120.9 and the sample standard deviation is found to be s = 12.1. Construct a 99% confidence interval for the population mean. The lower bound is (Round to two decimal places as needed.)
in a simple random sample of 190 households, the sample mean number of personal computers was...
in a simple random sample of 190 households, the sample mean number of personal computers was 2.78. assume the population standard deviation is 0.41. a) a 99.8% confidence interval for the mean number of personal computers is ----< mean <----- 2) a simple random sample of eight college freshman were asked about how many hours of sleep they typically got per night. the results were 7.5, 8, 6.5, 24, 8.5, 6.5, 7, 7.5 a) the data contains an outlier that...
A random sample of 540 households from a certain mid-western city was selected, and it was determined that 126 of these households owned at least one firearm. Using a 98% confidence level, calculate a lower confidence bound for the proportion of all households in this city that own at least one firearm. (Give your answer to 3 decimal places.) 191 X
A random sample of 526 households from a certain mid-western city was selected, and it was determined that 136 of these households owned at least one firearm. Using a 99% confidence level, calculate a lower confidence bound for the proportion of all households in this city that own at least one firearm. (Give your answer to 3 decimal places.) 0.209 X You may need to use the appropriate table in the Appendix of Tables to answer this question Need Help?...
O A simple random sample of sirena 400 Individuals who are currently employed is asked by wow tome once per week of the 2002 Construct a 99% confidence interval for the population proportion of employed individuals who wok home that one per The lower bound is found to three decimal places as needed) The upper bound is Round to three decimal places as needed) A simple random sample of size 400 individuals who are current employed is asked they work...
A simple random sample of size n = 40 is drawn from a population. The sample mean is found to be x= 120.9 and the sample standard deviation is found to be s = 12.1. Construct a 99% confidence interval for the population mean. The lower bound is (Round to two decimal places as needed.)
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