Sales records of a supermarket show that the expenditures of customers during each visit at the...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
Sales records of a supermarket show that the expenditures of customers during each visit at the supermarket are normally distributed with a mean of $112 and a standard deviation of $36. (a) Find the probability that the expenditure of a randomly selected customer is over $100 during that visit at the supermarket. (b) If 87.7% of customers spent over SK during each visit at the supermarket, find the value of SK. (c) Find the value of Q3 (third quartile) of the expenditures of customers during each visit at the supermarket (d) Suppose 9 customers in the supermarket are randomly selected. Find the probability that exactly 2 of the selected customers spent over $100 during that visit at the supermarket. (i) If it is known that at least 6 of the selected customers spent less than or equals $100 during that visit at the supermarket, find the the probability that at most 2 of the selected customers spent over $100 during that visit at the supermarket. (ii) Sales records of a supermarket show that the expenditures of customers during each visit at the supermarket are normally distributed with a mean of $112 and a standard deviation of $36. (a) Find the probability that the expenditure of a randomly selected customer is over $100 during that visit at the supermarket. (b) If 87.7% of customers spent over SK during each visit at the supermarket, find the value of SK. (c) Find the value of Q3 (third quartile) of the expenditures of customers during each visit at the supermarket (d) Suppose 9 customers in the supermarket are randomly selected. Find the probability that exactly 2 of the selected customers spent over $100 during that visit at the supermarket. (i) If it is known that at least 6 of the selected customers spent less than or equals $100 during that visit at the supermarket, find the the probability that at most 2 of the selected customers spent over $100 during that visit at the supermarket. (ii)
Expert Answer:
Answer rating: 100% (QA)
Let X to be equal to raw score mean 112 and 36 a P x100 z x 10011... View the full answer
Related Book For
Posted Date:
Students also viewed these mathematics questions
-
Question B3 Sales records of a supermarket show that the expenditures of customers during each visit at the supermarket are normally distributed with a mean of $112 and a standard deviation of $36....
-
Suppose that IQ scores are normally distributed with a mean of 100 and a standard deviation of 16. a. What is the probability that a randomly selected person will have an IQ score of less than 90? b....
-
If freeway speeds are normally distributed with a mean of = 70 mph and = 7 mph, find the probability that the speed of a randomly chosen vehicle (a) Exceeds 78 mph; (b) Is between 65 and 75 mph;...
-
What have researchers found about the use of job costing to record the cost of handproducing a bound book?
-
a. Assuming that South Korea is the only importer of U.S. beef, explain how South Koreas import ban on U.S. beef affected beef producers and consumers in the United States. b. Draw a graph of the...
-
What is the relationship between statistics and business analytics?
-
Indicate whether each of the following accounts is an asset, a liability, or a stockholders' equity account and whether it would have a debit or credit balance: (a) Accounts Receivable, (b) Accounts...
-
Goldbloom Corp. is thinking about opening a soccer camp in southern California. To start the camp, Goldbloom would need to purchase land and build four soccer fields and a sleeping and dining...
-
A . Physical Flow of Goods in the Grinding Department, January 2 0 XX: Units in Pounds To Account For: Units in Pounds Accounted For: Beginning Work - in - Process 0 Transferred to Packaging...
-
"Part 1: The Performance Lawn Equipment database contains data needed to develop a pro forma income statement. Dealers selling PLE products all receive 18% of sales revenue for their part of doing...
-
Based on research, identify the specific ethical principles involved in denying or accepting climate change. How is an ethical discussion different from a political discussion? What is your role as a...
-
A 600 V 60 kVA single-phase alternator has an effective resistance of 0.2 ohm. A field current of 10 A produces an armature current of 210 A on short-circuit and an emf of 480 V on open-circuit....
-
ome t/PlayerTest.aspx?testld=249502329¢erwin=yes up 5-6) K Evaluate the integral. 3 S (4x + 4) dx 0 3 (4x + 4) dx = 0 Question 2 of 10 4x+4) dx = (Type an integer or a simplified fraction) Aust...
-
Spartacus Inc is a US based oil explorer and refiner. The risk manager has studied forecasts for the next financial year and has concluded that a fall in the oil price below USD 40 per barrel would...
-
cos (2x2) - 1 Let f(x): = Evaluate the 10th derivative of f at x = 0. 2:2 |f(10) (0) = Hint: Build a Maclaurin series for f(x) from the series for cos(x).
-
Blosson company uses the percentage of recievables basis to record bad debt expense. Accounts recievable ( ending balance ) $ 5 0 0 0 0 0 ( debit ) and Allowance for doubtful accounts ( unadjusted )...
-
Silven Industries, which manufactures and sells summer lotions and insect repellents, has decided to diversify in order to stabilize sales throughout the year. A natural area for the company to...
-
Borrowing costs should be recognised as an expense and charged to the profit and loss account of the period in which they are incurred : A. If the borrowing costs relate to qualifying asset B. If the...
-
According to the web site www.torchmate.com, manhole covers must be a minimum of 22 in. in diameter, but can be as much as 60 in. in diameter. Assume that a manhole is constructed to have a circular...
-
Using the sample data given below find the z score corresponding to the eye height of 1642 mm. Is that eye height unusual? Why or why not? 1550 1642 1538 1497 1571
-
a. For the population, find the proportion of odd numbers. b. Table describes the sampling distribution of the sample mean. Construct a similar table representing the sampling distribution of the...
-
Determine whether \(G\) raph \(Q_{2}\) is a spanning tree of Graph \(Q\). If not, explain how you know. J k [m
-
Determine whether Graph \(Q_{1}\) is a spanning tree of Graph \(Q\). If not, explain how you know. m n
-
List three unused (solid) edges from Graph \(O\) that cannot be used to complete the spanning tree. A student has been asked to construct a spanning tree for Graph \(O\), as shown in the figure. The...
Study smarter with the SolutionInn App