Elementary Statistics Using Excel (6th Edition)
6th Edition
ISBN: 9780134506623
Author: Mario F. Triola
Publisher: PEARSON
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Chapter 8.2, Problem 8BSC
a.
To determine
To identify: The test if it is a two-tailed, left-tailed, or right-tailed test.
b.
To determine
To identify: The test statistic.
c.
To determine
To identify: The P-value
d.
To determine
To identify: The null hypothesis and the conclusion of it.
e.
To determine
To conclude: The original claim that 50% of the people agree to replace passwords with biometric security.
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why the answer is 3 and 10?
PS
9 Two films are shown on screen A and screen B at a cinema each evening. The numbers
of people viewing the films on 12 consecutive evenings are shown in the back-to-back
stem-and-leaf diagram.
Screen A (12) Screen B (12)
8
037
34
7 6 4 0 534
74 1645678
92 71689
Key: 116|4 represents 61 viewers for A and 64 viewers for B
A second stem-and-leaf diagram (with rows of the same width as the previous diagram)
is drawn showing the total number of people viewing films at the cinema on each of
these 12 evenings. Find the least and greatest possible number of rows that this second
diagram could have.
TIP
On the evening when 30 people viewed films on screen A, there could have been as few
as 37 or as many as 79 people viewing films on screen B.
Q.2.4 There are twelve (12) teams participating in a pub quiz. What is the probability of correctly predicting the top three teams at the end of the competition, in the correct order? Give your final answer as a fraction in its simplest form.
Chapter 8 Solutions
Elementary Statistics Using Excel (6th Edition)
Ch. 8.1 - 1. Vitamin C and Aspirin A bottle contains a label...Ch. 8.1 - 2. Estimates and Hypothesis Tests Data Set 3 “Body...Ch. 8.1 - 3. Mean Height of Men A formal hypothesis test is...Ch. 8.1 - 4. Interpreting P-value The Ericsson method is one...Ch. 8.1 - Identifying H0 and H1. In Exercises 5–8, do the...Ch. 8.1 - Identifying H0 and H1. In Exercises 5–8, do the...Ch. 8.1 - Prob. 7BSCCh. 8.1 - Identifying H0 and H1. In Exercises 5–8, do the...Ch. 8.1 - Prob. 9BSCCh. 8.1 - Conclusions. In Exercises 9 – 12, refer to the...
Ch. 8.1 - Prob. 11BSCCh. 8.1 - Conclusions. In Exercises 9 – 12, refer to the...Ch. 8.1 - Prob. 13BSCCh. 8.1 - Prob. 14BSCCh. 8.1 - Prob. 15BSCCh. 8.1 - Prob. 16BSCCh. 8.1 - Prob. 17BSCCh. 8.1 - P -Values. In Exercises 17 ‒ 20, do the...Ch. 8.1 - P -Values. In Exercises 17 ‒ 20, do the...Ch. 8.1 - Prob. 20BSCCh. 8.1 - Prob. 21BSCCh. 8.1 - Prob. 22BSCCh. 8.1 - Prob. 23BSCCh. 8.1 - Prob. 24BSCCh. 8.1 - Prob. 25BSCCh. 8.1 - Prob. 26BSCCh. 8.1 - Prob. 27BSCCh. 8.1 - Final Conclusions. In Exercises 25–28, use a...Ch. 8.1 - Prob. 29BSCCh. 8.1 - Prob. 30BSCCh. 8.1 - Prob. 31BSCCh. 8.1 - Prob. 32BSCCh. 8.1 - Prob. 33BBCh. 8.1 - Prob. 34BBCh. 8.1 - Prob. 35BBCh. 8.2 - In Exercises 1–4, use these results from a USA...Ch. 8.2 - Prob. 2BSCCh. 8.2 - Prob. 3BSCCh. 8.2 - Prob. 4BSCCh. 8.2 - Prob. 5BSCCh. 8.2 - Prob. 6BSCCh. 8.2 - Prob. 7BSCCh. 8.2 - Prob. 8BSCCh. 8.2 - Prob. 9BSCCh. 8.2 - Prob. 10BSCCh. 8.2 - Prob. 11BSCCh. 8.2 - Prob. 12BSCCh. 8.2 - Testing Claims About Proportions. In Exercises 9 –...Ch. 8.2 - Prob. 14BSCCh. 8.2 - Prob. 15BSCCh. 8.2 - Prob. 16BSCCh. 8.2 - Prob. 17BSCCh. 8.2 - Prob. 18BSCCh. 8.2 - Prob. 19BSCCh. 8.2 - Prob. 20BSCCh. 8.2 - Prob. 21BSCCh. 8.2 - Prob. 22BSCCh. 8.2 - Prob. 23BSCCh. 8.2 - Prob. 24BSCCh. 8.2 - Prob. 25BSCCh. 8.2 - Prob. 26BSCCh. 8.2 - Prob. 27BSCCh. 8.2 - Prob. 28BSCCh. 8.2 - Prob. 29BSCCh. 8.2 - Prob. 30BSCCh. 8.2 - Prob. 31BSCCh. 8.2 - Prob. 32BSCCh. 8.2 - Prob. 33BBCh. 8.2 - Prob. 34BBCh. 8.2 - Prob. 35BBCh. 8.3 - Video Games: Checking Requirements Twelve...Ch. 8.3 - Prob. 2BSCCh. 8.3 - Prob. 3BSCCh. 8.3 - Prob. 4BSCCh. 8.3 - Prob. 5BSCCh. 8.3 - Prob. 6BSCCh. 8.3 - Prob. 7BSCCh. 8.3 - Prob. 8BSCCh. 8.3 - Prob. 9BSCCh. 8.3 - Prob. 10BSCCh. 8.3 - Prob. 11BSCCh. 8.3 - Prob. 12BSCCh. 8.3 - Prob. 13BSCCh. 8.3 - Testing Hypotheses. In Exercises 13–24, assume...Ch. 8.3 - Prob. 15BSCCh. 8.3 - Prob. 16BSCCh. 8.3 - Prob. 17BSCCh. 8.3 - Testing Hypotheses. In Exercises 13–24, assume...Ch. 8.3 - Prob. 19BSCCh. 8.3 - Prob. 20BSCCh. 8.3 - Prob. 21BSCCh. 8.3 - Prob. 22BSCCh. 8.3 - Prob. 23BSCCh. 8.3 - Testing Hypotheses. In Exercises 13–24, assume...Ch. 8.3 - Prob. 25BSCCh. 8.3 - Prob. 26BSCCh. 8.3 - Prob. 27BSCCh. 8.3 - Prob. 28BSCCh. 8.3 - Prob. 31BBCh. 8.3 - 32. Interpreting Power For the sample data in...Ch. 8.4 - Prob. 1BSCCh. 8.4 - Cans of Coke Use the data and the claim given in...Ch. 8.4 - Prob. 3BSCCh. 8.4 - Prob. 4BSCCh. 8.4 - Prob. 5BSCCh. 8.4 - Prob. 6BSCCh. 8.4 - Prob. 7BSCCh. 8.4 - Prob. 8BSCCh. 8.4 - Prob. 9BSCCh. 8.4 - Prob. 10BSCCh. 8.4 - Prob. 11BSCCh. 8.4 - Prob. 12BSCCh. 8.4 - Prob. 13BSCCh. 8.4 - Prob. 14BSCCh. 8.4 - Prob. 15BSCCh. 8.4 - Prob. 16BSCCh. 8.4 - Prob. 17BSCCh. 8.4 - Prob. 18BSCCh. 8.4 - Prob. 19BBCh. 8.4 - Prob. 20BBCh. 8 - Prob. 1CQQCh. 8 - Prob. 2CQQCh. 8 - Prob. 3CQQCh. 8 - Prob. 4CQQCh. 8 - Prob. 5CQQCh. 8 - Prob. 6CQQCh. 8 - Prob. 7CQQCh. 8 - Prob. 8CQQCh. 8 - Prob. 9CQQCh. 8 - Prob. 10CQQCh. 8 - Prob. 1CRECh. 8 - Prob. 2CRECh. 8 - Prob. 3CRECh. 8 - Red Blood Cell Count A simple random sample of 40...Ch. 8 - Prob. 5CRECh. 8 - Prob. 6CRECh. 8 - BMI for Miss America Use the same BMI indexes...Ch. 8 - Lightning Deaths Based on the results given in...Ch. 8 - Prob. 1.1CRECh. 8 - Prob. 1.2CRECh. 8 - Prob. 1.3CRECh. 8 - Prob. 1.4CRECh. 8 - Prob. 1.5CRECh. 8 - Prob. 1.6CRECh. 8 - Prob. 1.7CRECh. 8 - Prob. 1.8CRECh. 8 - Prob. 1EPCh. 8 - Prob. 1FDD
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