A survey of 23 individuals found that they spent an average of $39.48 on headphones to use
Question:
A survey of 23 individuals found that they spent an average of $39.48 on headphones to use for exercising. The margin of error for a 95% confidence interval was found to be 21.2.
a. What are the lower and upper limits of the confidence interval?
b. What was the standard deviation of the sample?
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 70% (10 reviews)
a b Headphones Sample mean 3948 Alph...View the full answer
Answered By
Suneeta Mugada
Hi
Myself Suneeta working as a lecturer about 8 year experience with commerce background. Good experience in all commerce subject. Taking home tution from 11 th till MBA. I did my MBA Specialization finance. But due to good tutoring experience have good knowledge in all other subject
0.00
0 Reviews
10+ Question Solved
Related Book For
Question Posted:
Students also viewed these Business questions
-
A survey of 50 young professionals found that they spent an average of $19.31 when dining out, with a standard deviation of $12.11. Can you conclude statistically that the population mean is greater...
-
A confidence interval for a standard deviation for large samples taken from a normally distributed population can be approximated by Find the 95% confidence interval for the population standard...
-
The confidence limits if 23 seeds are found in 1 m2 (Example 8.2.14). Use experimentation and Newton's method to solve the equations for the approximate confidence limits with the method of support.
-
Crosby is known for his advocacy of zero-defects management and prevention; Crosby's Quality Vaccine consists of which three ingredients? Group of answer choices A. Determination, Education, and...
-
Following are the size and price data for custom homes from Exercise 14.18. Use α = 0.01. Presuming that the assumptions for regression inferences are met, decide at the specified...
-
Describe the events that helped lead to the decline in importance of behaviorism in psychology and the events that led to the cognitive revolution. Be sure you understand what the...
-
What are the six basic concepts of TQM? LO.1
-
Break-even analysis is of limited use to management because a company cannot survive by just breaking even. Do you agree? Explain.
-
E9.8B (LO 2) (Relative Sales Value Method) During 2020, Galarraga Furniture Company purchases a carload of wicker chairs. The manufacturer sells the chairs to Galarraga for a lump sum of $5,985,...
-
Records on a fleet of trucks reveal that the average life of a set of spark plugs is normally distributed with a mean of 22,100 miles. The fleet owner purchased 18 sets and found that the sample...
-
A survey of 21 patients at a hospital found 95% confidence intervals for the following Construct a stock chart-based visualization of these confidence intervals. What conclusions can you draw from...
-
Develop a realistic retirement planning spreadsheet model for your personal situation. If you are currently employed, use as much information as you can gather for your model, including potential...
-
Find equations of the following lines. The line through (0, 0, 1) in the direction of the vector v = (4, 7, 0)
-
Skinovations needs to put together a Production schedule for next week and has asked its marketing team to give its forecasts for next week's sales. The team has used two different forecasting...
-
If a potential leader viewed her least preferred co-worker in favorable terms, how would Fiedler's Model describes this leader?
-
You have just been hired as a financial analyst for Lydex Company, a manufacturer of safety helmets. Your boss has asked you to perform a comprehensive analysis of the company s financial statements,...
-
For our first discussion you should locate a research article in which a quantitative study is reported. This article should not be a theoretical article or a methods article, but should describe...
-
A box is separated by a partition which divides its volume in the ration of 3:1. the larger portion of the box contains 1000 molecules of Ne gas; the smalled portion contains 100 molecules of He gas....
-
We begin with a computer implemented in single-cycle implementation. When the stages are split by functionality, the stages do not require exactly the same amount of time. The original machine had a...
-
Charles owns an office building and land that are used in his trade or business. The office building and land were acquired in 1978 for $800,000 and $100,000, respectively. During the current year,...
-
Refer to TMCs project selection problem presented in this chapter. In the solution shown in Figure, The probability of success for project 4 is only 0.3488. Thus, project 4 is almost twice as likely...
-
The PENTEL Corporation manufactures three different types of computer chips. Each type of chip requires different amounts of processing time in three different departments as summarized in the...
-
A car dealership needs to determine how to allocate its $20,000 advertising budget. They have estimated the expected profit from each dollar (X) spent in four different advertising media as follows:...
-
An underlying asset price is at 100, its annual volatility is 25% and the risk free interest rate is 5%. A European call option has a strike of 85 and a maturity of 40 days. Its BlackScholes price is...
-
Prescott Football Manufacturing had the following operating results for 2 0 1 9 : sales = $ 3 0 , 8 2 4 ; cost of goods sold = $ 2 1 , 9 7 4 ; depreciation expense = $ 3 , 6 0 3 ; interest expense =...
-
On January 1, 2018, Brooks Corporation exchanged $1,259,000 fair-value consideration for all of the outstanding voting stock of Chandler, Inc. At the acquisition date, Chandler had a book value equal...
Study smarter with the SolutionInn App