The mean income per person in the United States is $40,500, and the distribution of incomes...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
The mean income per person in the United States is $40,500, and the distribution of incomes follows a normal distribution. A random sample of 18 residents of Wilmington, Delaware, had a mean of $51,500 with a standard deviation of $10,200. At the 0.050 level of significance, is that enough evidence to conclude that residents of Wilmington, Delaware, have more income than the national average? a. State the null hypothesis and the alternate hypothesis. Ho: us H₁: > b. State the decision rule for 0.050 significance level. (Round your answer to 3 decimal places.) Reject Ho ift > c. Compute the value of the test statistic. (Round your answer to 2 decimal places.) Value of the test statistic d. Is there enough evidence to substantiate that residents of Wilmington, Delaware, have more income than the national average at the 0.050 significance level? Ho. There is evidence to conclude that the mean income in Wilmington is $ 40,500 The mean income per person in the United States is $40,500, and the distribution of incomes follows a normal distribution. A random sample of 18 residents of Wilmington, Delaware, had a mean of $51,500 with a standard deviation of $10,200. At the 0.050 level of significance, is that enough evidence to conclude that residents of Wilmington, Delaware, have more income than the national average? a. State the null hypothesis and the alternate hypothesis. Ho: us H₁: > b. State the decision rule for 0.050 significance level. (Round your answer to 3 decimal places.) Reject Ho ift > c. Compute the value of the test statistic. (Round your answer to 2 decimal places.) Value of the test statistic d. Is there enough evidence to substantiate that residents of Wilmington, Delaware, have more income than the national average at the 0.050 significance level? Ho. There is evidence to conclude that the mean income in Wilmington is $ 40,500
Expert Answer:
Answer rating: 100% (QA)
Solution Given that Sample size 18 Sample mean 5150... View the full answer
Related Book For
Statistical Techniques In Business And Economics
ISBN: 9781260239478
18th Edition
Authors: Douglas Lind, William Marchal, Samuel Wathen
Posted Date:
Students also viewed these mechanical engineering questions
-
Hildreth Company uses a job order cost system. The following data summarize the operations related to production for April 2014, the first month of operations: a. Materials purchased on account, $...
-
Hildreth Company uses a job order cost system. The following data summarize the operations related to production for April, the first month of operations: a. Materials purchased on account, $147,000....
-
Hildreth Company uses a job order cost system. The following data summarize the operations related to production for April, the first month of operations: Materials purchased on account, $1,920....
-
Modify HashST to use a resizing array so that the average length of the list associated with each hash value is between 1 and 8 .
-
The late 1980s and early 1990s were a significant time for Eastern Europe. Several national boundaries and political ideologies, as well as the names of a few countries, changed during this period....
-
Ethical investing following socially responsible principles is gaining popularity. The Social Investment Organization website provides information about these principles and on Canadian ethical...
-
Extend the algorithm you designed for Exercise 6.2 so that it can evaluate positions that are nonterminalin other words, positions where the game has not yet finished. Your score should be positive...
-
The financial statements for Highland Publications Corporation included the following selected information: Common stock $1,600,000 Retained earnings $900,000 Net income $1,000,000 Shares issued...
-
Explore the security mechanisms in place to isolate processes and prevent unauthorized access to system resources. How do modern operating systems use features like chroot, namespaces, and privilege...
-
Lars Linken opened Lars Cleaners on March 1, 2020. During March, the following transactions were completed. Mar. 1 Owner invested 15,000 cash in the company. 1 Borrowed 6,000 cash by signing a...
-
3- A ball, m = 4 kg moving with v = 5 m/s collides with another ball, m = 6 kg at rest, V2i = 0. They stick together after the collision. (a) Find their common velocity v2f after the collision. What...
-
Interpret the following bit patterns first as little-endian then as big-endian unsigned short integers. Convert your answer to decimal. 1101011100101110 1101010101100101 0010101011010101 ...
-
Write a program to convert a number in any base < 37 to its decimal equivalent using the recurrence relation. Use a string to hold the number itself and use 09 and capital letters AZ for the digits.
-
Write e = 2.71828182845904. . . to at least four decimal places using Babylonian notation.
-
Convert the following 32-bit IEEE bit patterns to their corresponding floatingpoint values: (a) 0 10000000 10010010000111111011011 (b) 0 10000000 01011011111100001010100 (c) 0 01111111...
-
A haulage firm uses containers to carry products for clients which currently measure 10 m long by 2 m wide by 4 m high. The owner of the firm has decided to invest in new containers which double...
-
Richard is a candidate attorney, and he has received an instruction to draft an affidavit. He comes to you and asks for an explanation of what an affidavit is and what questions a commissioner must...
-
C- Consider the following scenario:- A supermarket needs to develop the following software to encourage regular customers. For this, the customer needs to supply his/her residence address, telephone...
-
Refer to Table 103 and the example just completed. With n = 100, = 400, X c = 9,922, and 1 = 9,880, verify that the probability of a Type II error is .1469. Data From Table 10-3: Selected...
-
American households increasingly rely on cell phones as their exclusive telephone service. It is reported that 49.2% of American households still have landline phone service. We decide to randomly...
-
A research firm surveyed 49 randomly selected Americans to determine the mean amount spent on coffee during 1 week. The sample mean was $20 per week. The population distribution is normal with a...
-
Discuss the approach you would take to building a system for playing Scrabble or another word game of the sort. What limitations does your system have? How likely do you think it is that your system...
-
Discuss the current state of the art of game-playing computer systems in relation to the following games: chess, checkers, Go, bridge, Othello, tic-tac-toe. What advances are likely in the near...
-
What problems did the developers of Chinook face? What new techniques did they add to simple Minimax with alpha-beta pruning? Would these techniques extend well to other games?
Study smarter with the SolutionInn App