An author has written 15 childrens books. The first eight books that she wrote contained between 240

Question:

An author has written 15 children’s books. The first eight books that she wrote contained between 240 and 250 pages each. The next six books contained between 180 and 190 pages each. Correct to 1 decimal place, the standard deviation of the number of pages in the 15 books together is 31.2.

Show that it is not possible to determine a specific calculated estimate of the number of pages in the author’s 15th book.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Cambridge International AS & A Level Mathematics Probability & Statistics 1 Coursebook

ISBN: 9781108407304

1st Edition

Authors: Dean Chalmers, Julian Gilbey

See More Books

Question Posted: Sep 13, 2021 02:03 AM

See More Questions

Show that it is not possible to construct a finite state machine that recognizes precisely those sequences in the language A = {0.1 | j +, i > j}. (Here the alphabet for A is = {0, 1}.)
A nutritionist claims that the standard deviation of the number of calories in 1 tablespoon of the major brands of pancake syrup is 60. A sample of major brands of syrup is selected, and the number...
A researcher claims that the standard deviation of the number of deaths annually from tornadoes in the United States is less than 35. If a sample of 11 randomly selected years had a standard...
Mickey Limited is a manufacturing business that uses a standard costing system. The companys flexed budget for April 20X9 is: Sales 173,340 Costs Direct materials (22,500) Direct labour (37,684)...
Which atom of each pair is larger? a. K or Cl b. Ba or Bi
A firm is considering two capital investment projects. Project A involves an initial cost of $125,000. The discounted present value of all future cash flows is $145,000. Project B requires an initial...
We are interested in investigating whether there is a linear relationship between the number of times a player has been caught stealing and the number of stolen bases the player has. Construct a...
The following data are taken from the general ledger and other records of Phoenix Products Co. on October 31, the end of the first month of operations in the current fiscal year:...
QUESTION 1 The percentage of demand that can be satisfied is Type I service level Type Il service level Type Ill service level None of the above
Assuming no forward contract was entered into, how much foreign exchange gain or loss should Reiter report on its Year 1 income statement with regard to this transaction? a. A $5,000 gain. b. A...
a. Find the mean and standard deviation of the first seven positive even integers. b. Without using a calculator, write down the mean and standard deviation of the first seven positive odd integers....
A group of n boys can be arranged in a line in a certain number of ways. By adding two more boys to the group, the number of possible arrangements increases by a factor of 420. Find the value of n.
A real-estate developer seeks to determine the most economical height for a new office building. The building will be sold after five years. The relevant net annual revenues and salvage value s are...
Turn this information into an excel sheets with the excel formulas being shown P10.1 (LO 1) (Depreciation for Partial Period-SL, SYD, and DDB) Alladin Company purchased Machine #201 on May 1, 2025....
You are the Financial Analyst at Wellington Laboratories Ltd., a New Orleans, USA based bulk drugs manufacturer, which is evaluating the following project for manufacturing a new compound. Year Cash...
A variable mesh screen produces a linear and axisymmetric velocity profile as indicated below in the air flow through a 2-ft diameter circular cross section duct. The static pressures upstream and...
A vertical round steel rod 2 m long is securely held at its upper end. A weight can slide freely on the rod and its fall is arrested by a stop provided at the lower end of the rod. When the weight...
8) Determine the magnitudes of the forces F and P so that the single equivalent couple (i.e. the resultant of the three couples) acting on the triangular block is zero. Z -F F 3 m 10 N, 30 6 m 10 N 3...
Last month, the Finishing Department of Rohirrim Inc. started 12,000 units into production. The department had 3,600 units in process at the beginning of the month, and these units were 50% complete...
Write a declaration for each of the following: a. A line that extends from point (60, 100) to point (30, 90) b. A rectangle that is 20 pixels wide, 100 pixels high, and has its upper-left corner at...
Solve, giving your answers correct to 3 significant figures. a. 5 2x 5(5 x ) + 6 = 0 b. 2 2x + 5 = 6 2 x c. 3 2x = 6 3 x + 7 d. 4 2x + 27 = 12(4 x )
Use the substitution y = 2 x to solve the equation 2 2x + 32 = 12(2 x ).
Use a calculator to evaluate correct to 3 significant figures: a. e 3 b. e 2.7 c. e 0.8 d. e 2
Production numbers for 2 shifts are shown. The shift supervisor of Shift 2 insists to the production manager that her operators are more productive than the ones on Shift 1. Using a confidence level...
In a class, the scores that students got are as shown. What are the 25, 50, 75 and 100th percentiles for the data? 84 84 98 80 89 83 85 56 85 84 84 74 84 81 83 80 45 86 67 79 81 78 76 85 83 77 86 83...
Number of points made by Teams A and B are shown. Which statement is true based on running the F-Test Two-Sample for Variances in the Data Analysis pack in Excel? Use a confidence level of 10% to...

An author has written 15 childrens books. The first eight books that she wrote contained between 240

Question:

Step by Step Answer:

To determine whether it is possible to determine a specific calculated estimate of the number of pag...View the full answer

Cambridge International AS & A Level Mathematics Probability & Statistics 1 Coursebook

Students also viewed these Mathematics questions