Intro Stats
4th Edition
ISBN: 9780321825278
Author: Richard D. De Veaux, Paul F. Velleman, David E. Bock
Publisher: PEARSON
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Textbook Question
Chapter 22, Problem 15E
Nuts A company says its premium mixture of nuts contains 10% Brazil nuts, 20% cashews, 20% almonds, and 10% hazelnuts, and the rest are peanuts. You buy a large can and separate the various kinds of nuts. On weighing them, you find there are 112 grams of Brazil nuts, 183 grams of cashews, 207 grams of almonds, 71 grams of hazelnuts, and 446 grams of peanuts. You wonder whether your mix is significantly different from what the company advertises.
- a) Explain why the chi-square goodness-of-fit test is not an appropriate way to find out.
- b) What might you do instead of weighing the nuts in order to use a χ2 test?
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A company produces four combinations of mixed vegetables that sell in 1-kg packages. Italian style combines 0,4 kg of zucchini, 0.3 of broccoli, and 0.3 of carrots. French style combines 0 3
kg of broccoli, 0.4 of carrots, and 0.3 of cauliflower. Oriental style combines 0.1 kg of zucchini, 0.3 of broccoli, 0.3 of carrots, and 0.3 of cauliflower. The Combo style combines 0.5 kg of
broccoli and 0.5 kg of cauliflower. The company has a stock of 13,200 kg of zucchini, 42,900 kg of broccoli, 29,400 kg of carrots, and 37,500 kg of cauliflower. How many packages of each
style should it prepare to use up existing supplies?
O A. w+0.3x + 0.3y + 0.5z = 42,900
0.4w + x+ 0.1y = 29,400
w + 0.3x + 0.3y + 0.5z = 37,500
w + 0.3x + 0.3y = 13,200
B. 0.3w + 0.3x + 0.3y + 0.5z = 42,900
0.3w + 0.4x + 0.3y = 29,400
0.3x + 0.3y + 0.5z = 37,500
0.4w + 0.1y = 13,200
O C. 0.3w+0.3x+0.3y + 0.4z = 29,400
0.3w + 0.4x +0.3y + 0.1z = 42,900
0.3w +0.3x + 0.5y = 13,200
O D. 0.3w + 0.3x + 0.3y + 0.5z = 42,900
0.4x +…
1. In Science class, Ms. Alkhaldi had 30.6 pounds of igneous rocks. She
divided equally by weight into 9 different containers. How many
pounds of rocks will be in each container?
diatributod the fish
Planter's Peanut Company wants to mix 20 pounds of peanuts
worth $3 a pound with cashews worth $5 a pound in order to
make an experimental mix worth $3.50 a pound. How many
pounds of cashews should be added to the peanuts?
Number of Cost per
Роunds
Value
Рound
$3 per lb Peanuts
$5 per lb Cashews
$3.50 per lb Mixture
Wanted
Chapter 22 Solutions
Intro Stats
Ch. 22.3 - Why do we need the control group?Ch. 22.3 - Prob. 2JCCh. 22.3 - Prob. 3JCCh. 22.3 - Prob. 4JCCh. 22.3 - Prob. 5JCCh. 22.3 - Prob. 6JCCh. 22.4 - Prob. 7JCCh. 22.4 - Prob. 8JCCh. 22.4 - Prob. 9JCCh. 22 - Human births If there is no seasonal effect on...
Ch. 22 - Bank cards At a major credit card bank, the...Ch. 22 - Prob. 3ECh. 22 - Prob. 4ECh. 22 - Customer ages An analyst at a local bank wonders...Ch. 22 - Bank cards, once more A market researcher working...Ch. 22 - Human births, last time For the data in Exercise...Ch. 22 - Prob. 8ECh. 22 - Prob. 9ECh. 22 - Prob. 10ECh. 22 - Prob. 11ECh. 22 - Prob. 12ECh. 22 - Dice After getting trounced by your little brother...Ch. 22 - MMs As noted in an earlier chapter, Mars Inc. says...Ch. 22 - Nuts A company says its premium mixture of nuts...Ch. 22 - Prob. 16ECh. 22 - NYPD and race Census data for New York City...Ch. 22 - Violence against women In its study When Men...Ch. 22 - Fruit flies Offspring of certain fruit flies may...Ch. 22 - Prob. 20ECh. 22 - Prob. 21ECh. 22 - Lottery numbers The fairness of the South African...Ch. 22 - Prob. 23ECh. 22 - Prob. 24ECh. 22 - Childbirth, part 2 In Exercise 23, the table shows...Ch. 22 - Prob. 26ECh. 22 - Prob. 27ECh. 22 - Prob. 28ECh. 22 - Prob. 29ECh. 22 - Does your doctor know? (part 4) In Exercises 24,...Ch. 22 - Prob. 31ECh. 22 - Prob. 32ECh. 22 - 33. Titanic Here is a table we first saw in...Ch. 22 - NYPD The table below shows the rank attained by...Ch. 22 - Prob. 35ECh. 22 - NYPD again Examine and comment on this table of...Ch. 22 - Cranberry juice Its common folk wisdom that...Ch. 22 - Prob. 38ECh. 22 - Montana A poll conducted by the University of...Ch. 22 - 40. Fish diet Medical researchers followed 6272...Ch. 22 - Prob. 41ECh. 22 - Working parents In April 2009, Gallup published...Ch. 22 - Grades Two different professors teach an...Ch. 22 - Full moon Some people believe that a full moon...Ch. 22 - Grades, again In some situations where the...Ch. 22 - Full moon, next phase In Exercise 44, you found...Ch. 22 - Racial steering A subtle form of racial...Ch. 22 - 48. Titanic, redux Newspaper headlines at the...Ch. 22 - Prob. 49ECh. 22 - Prob. 50ECh. 22 - Prob. 51ECh. 22 - Education by age Use the survey results in the...
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