An economist wants to estimate the mean per capita income (in thousands of dollars) for a major city in Texas. Suppose that the mean income is found to be $31.7 for a random sample of 753 people. Assume the population standard deviation is known to be $9. Construct the 80% confidence interval for the mean per capita income in thousands of dollars. Round your answers to one decimal place.

Question
 

An economist wants to estimate the mean per capita income (in thousands of dollars) for a major city in Texas. Suppose that the mean income is found to be $31.7 for a random sample of 753 people. Assume the population standard deviation is known to be $9. Construct the 80% confidence interval for the mean per capita income in thousands of dollars. Round your answers to one decimal place.

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Math
Statistics

Other

Related Statistics Q&A

Find answers to questions asked by students like you.

Q: The mean score on a standard exam is 320 with a standard deviation of 40. Suppose 100scores are rand...

A: Click to see the answer

Q: A social service organization reports that the level of educational attainment of mothers receiving ...

A: Note-  In case the question consists of multiple sub parts , we are authorized to answer three sub p...

Q: A box contains of 8 GOOD light bulbs and 2 burned out bulbs, 4 bulbs are selected randomly to put in...

A: According to the provided information, the box contains 8 GOOD light bulbs and 2 burned out bulbs. T...

Q: the null and alternative hypotheses to determine if babies tend to look at the hinderer toy longer t...

A: (A)  Let be the mean difference of the babies watching the climber approach by hinderer and the clim...

Q: data and question in both images

A: Click to see the answer

Q: A student was asked to find a 95% confidence interval for widget width using data from a random samp...

A: According to the provided data, the 95% confidence interval is provided as 13.1 < µ < 34.8 for...

Q: X Y 1 7 3 4 5 3 4 2 2 4 The alternative hypothesis in symbols fo...

A: The alternative hypothesis in symbols for a two tailed test is as follow: H1: ρ ≠ 0 The level of sig...

Q: Two sample I for Men vs Women physical therapist wanted to know whether the mean step pulse of men w...

A: Let  denote the mean pulse rate of men Let   denote the mean pulse rate of women. The objective is t...

Q: The output below is for a t-test for the hypothesis: Individuals living in bad neighborhoods commit ...

A: (1). Null and alternative hypotheses: The investigator is interested to test whether the average num...