Question

In: Math

The average income of 15 families who reside in a large metropolitan East Coast city is...

The average income of 15 families who reside in a large metropolitan East Coast city is $62,456. The standard deviation is $9652. The average income of 11 families who reside in a rural area of the Midwest is $60,213, with a standard deviation of $2009. At α = 0.05, can it be concluded that the families who live in the cities have a higher income than those who live in the rural areas? can u show detail..

Solutions

Expert Solution


Related Solutions

The average income of 19 families who reside in a large metropolitan East Coast city is...
The average income of 19 families who reside in a large metropolitan East Coast city is $62,245. The standard deviation is $9695. The average income of 12 families who reside in a rural area of the Midwest is $60,213, with a standard deviation of $2079. At α = 0.05, can it be concluded that the families who live in the cities have a higher income than those who live in the rural areas? calculate test statistics and round to 2...
The average income of 16 families who reside in a large city is $54,356 and the...
The average income of 16 families who reside in a large city is $54,356 and the standard deviation is $8256. The average income of 12 families who reside in a suburb of the same city is $46,512 with a standard deviation of $1311. At ? = 0.01, can it be concluded that the income of the families who reside within the city is greater than that of those who reside in the suburb? Assume the populations have equal variances and...
You are the elected mayor of a relatively large East Coast city, which features a major...
You are the elected mayor of a relatively large East Coast city, which features a major airport, large international port, and many historically significant areas and monuments. To date, thanks to federal funding since 9-11, you have been able to provide relatively adequate security for these sites, fending off any major threats thus-far. However, for the upcoming fiscal year, federal funding for your city’s terror security is being cut by 33 percent. In addition, your city itself is suffering through...
The mayor of a large city claims that 30 % of the families in the city...
The mayor of a large city claims that 30 % of the families in the city earn more than $ 100,000 per year; 60 % earn between $ 30,000 and $ 100,000 (inclusive); 10 % earn less than $ 30,000 per year. In order to test the mayor’s claim, 285 families from the city are surveyed and it is found that: 100 of the families earn more than $ 100,000 per year; 150 of the families earn between $ 30,000...
The mayor of a large city claims that 25 % of the families in the city...
The mayor of a large city claims that 25 % of the families in the city earn more than $ 100,000 per year; 55 % earn between $ 30,000 and $ 100,000 (inclusive); 20 % earn less than $ 30,000 per year. In order to test the mayor’s claim, 285 families from the city are surveyed and it is found that: 90 of the families earn more than $ 100,000 per year; 135 of the families earn between $ 30,000...
The mayor of a large city claims that 25 % of the families in the city...
The mayor of a large city claims that 25 % of the families in the city earn more than $ 100,000 per year; 55 % earn between $ 30,000 and $ 100,000 (inclusive); 20 % earn less than $ 30,000 per year. In order to test the mayor’s claim, 285 families from the city are surveyed and it is found that: 90 of the families earn more than $ 100,000 per year; 135 of the families earn between $ 30,000...
A survey is conducted to estimate the average household income in a large metropolitan area. A...
A survey is conducted to estimate the average household income in a large metropolitan area. A random sample of 150 households in this area yielded an average household income of $55,000 with a standard deviation of $13,200. Construct a 95% confidence interval for the mean household income in this area. (Choose the BEST answer)
The head of emergency services in a large metropolitan city strongly believes that heterogeneous (or diverse)...
The head of emergency services in a large metropolitan city strongly believes that heterogeneous (or diverse) teams are more effective than homogeneous (or similar) teams. He wants to put this into practice by selecting highly skilled people with diverse demographics, backgrounds and experiences on ambulance and other emergency service teams. Consider the class material and reading on team dynamics when answering the following. a) What would be the advantages and disadvantages of this decision regarding how the team members would...
the weekly earnings of all families in a large city have a normal probability distribution with...
the weekly earnings of all families in a large city have a normal probability distribution with mean of $950 and standard deviation of $95. a) if someone is randomly selected what's the probability that his/her weekly weekly earning will be less than $1000. b) if you you select a random sample of 25 families from the city. what is the mean, the standard deviation, and the shape of the sampling distribution of the sample mean? c) what's the probability that...
In a survey of 99 families in Karachi, 45 were low income families who at some...
In a survey of 99 families in Karachi, 45 were low income families who at some point in time were involved in electricity theft. 13 were low income families who never did any violation. 16 were high income families who involved in electricity theft, and 25 high income families never did any violation. If One of these subject is randomly selected, what is the probability of: i. Low income families or someone who did electricity theft. ii. Low income families...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT