EBK STATISTICS FOR MANAGEMENT AND ECONO
10th Edition
ISBN: 9780100546462
Author: KELLER
Publisher: YUZU
expand_more
expand_more
format_list_bulleted
Question
Chapter 13.3, Problem 104E
a:
To determine
Test hypothesis.
b:
To determine
Calculate the lower limit and the upper limit.
c:
To determine
Required condition.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
What sampling technique is used?
In a research class of 40 students, the teacher divides the class into five groups, each with eight members per group. The teacher then asked the class to choose their group members based on interests, compatibility, and rapport. After the selection was made, the teacher realized that the abilities per group were uneven. He then reshuffled some members of the group to achieve equilibrium among the groups. The teacher needs ten students to represent each group. He selected one male and one female from each group based on academic performance, leadership skills, and social skills as qualities that will embody as representatives per group.
A number of particular articles has been classified according to their
weights. After drying for two weeks the same articles have again been weighted and similarly
classified. It is known that the median weight in the first weighing was 20-83 gm. while in the
second weighing it was 17-35 gm. Some frequencies a and b in the first weighing and x and y
in the second are missing. It is known that a = x and b
missing frequencies.
1
5 y. Find out the values of the
Class
Frequencies
Class
Frequencies
1st weighing
2nd weighing
1st weighing
2nd weighing
0-5
15-20
52
a
50
5-10
20-25
75
30
10-15
11
40
25-30
22
28
Textbook authors must be careful that the reading level of their book is appropriate for the target audience. Some methods of assessing reading level require estimating the average word length. We've randomly chosen 20 words from a randomly selected page in Intro Stats and counted the number of letters in each word:
5, 5, 2, 11, 3, 5, 6, 8, 5, 4, 7, 2, 9, 4, 8, 10, 4, 7, 6, 9
Suppose that our editor was hoping that the book would have a mean word length of 6.8 letters. Does this sample indicate that the authors failed to meet this goal? With a significance level of 0.05, test an appropriate hypothesis and state your conclusion. (i.e state the appropriate null and alternative hypotheses, calculate the test statistic, conclude and interpret it).
Chapter 13 Solutions
EBK STATISTICS FOR MANAGEMENT AND ECONO
Ch. 13.1 - Prob. 5ECh. 13.1 - Prob. 6ECh. 13.1 - Prob. 7ECh. 13.1 - Prob. 8ECh. 13.1 - Prob. 9ECh. 13.1 - Prob. 10ECh. 13.1 - Prob. 11ECh. 13.1 - Prob. 12ECh. 13.1 - Prob. 13ECh. 13.1 - Prob. 14E
Ch. 13.1 - Prob. 15ECh. 13.1 - Prob. 16ECh. 13.1 - Prob. 17ECh. 13.1 - Prob. 18ECh. 13.1 - Prob. 19ECh. 13.1 - Prob. 20ECh. 13.1 - Prob. 21ECh. 13.1 - Prob. 22ECh. 13.1 - Prob. 23ECh. 13.1 - Prob. 24ECh. 13.1 - Prob. 25ECh. 13.1 - Prob. 26ECh. 13.1 - Prob. 27ECh. 13.1 - Prob. 28ECh. 13.1 - Prob. 29ECh. 13.1 - Prob. 30ECh. 13.1 - Prob. 31ECh. 13.1 - Prob. 32ECh. 13.1 - Prob. 33ECh. 13.1 - Prob. 34ECh. 13.1 - Prob. 35ECh. 13.1 - Prob. 36ECh. 13.1 - Prob. 37ECh. 13.1 - Prob. 38ECh. 13.1 - Prob. 39ECh. 13.1 - Prob. 40ECh. 13.1 - Prob. 41ECh. 13.1 - Prob. 42ECh. 13.1 - Prob. 43ECh. 13.1 - Prob. 44ECh. 13.1 - Prob. 45ECh. 13.1 - Prob. 46ECh. 13.1 - Prob. 47ECh. 13.1 - Prob. 48ECh. 13.1 - Prob. 49ECh. 13.1 - Prob. 50ECh. 13.1 - Prob. 51ECh. 13.1 - Prob. 52ECh. 13.1 - Prob. 53ECh. 13.1 - Prob. 54ECh. 13.1 - Prob. 55ECh. 13.1 - Prob. 56ECh. 13.1 - Prob. 57ECh. 13.1 - Prob. 58ECh. 13.1 - Prob. 59ECh. 13.1 - Prob. 60ECh. 13.1 - Prob. 61ECh. 13.1 - Prob. 62ECh. 13.1 - Prob. 63ECh. 13.1 - Prob. 64ECh. 13.1 - Prob. 65ECh. 13.1 - Prob. 66ECh. 13.1 - Prob. 67ECh. 13.1 - Prob. 68ECh. 13.1 - Prob. 69ECh. 13.1 - Prob. 70ECh. 13.1 - Prob. 71ECh. 13.1 - Prob. 72ECh. 13.1 - Prob. 73ECh. 13.1 - Prob. 74ECh. 13.1 - Prob. 75ECh. 13.1 - Prob. 76ECh. 13.1 - Prob. 77ECh. 13.1 - Prob. 78ECh. 13.1 - Prob. 79ECh. 13.1 - Prob. 80ECh. 13.1 - Prob. 81ECh. 13.1 - Prob. 82ECh. 13.1 - Prob. 83ECh. 13.1 - Prob. 84ECh. 13.1 - Prob. 85ECh. 13.1 - Prob. 86ECh. 13.1 - Prob. 87ECh. 13.1 - Prob. 88ECh. 13.2 - Prob. 89ECh. 13.2 - Prob. 90ECh. 13.2 - Prob. 91ECh. 13.2 - Prob. 92ECh. 13.2 - Prob. 93ECh. 13.2 - Prob. 94ECh. 13.2 - Prob. 95ECh. 13.3 - Prob. 96ECh. 13.3 - Prob. 97ECh. 13.3 - Prob. 98ECh. 13.3 - Prob. 99ECh. 13.3 - Prob. 100ECh. 13.3 - Prob. 101ECh. 13.3 - Prob. 102ECh. 13.3 - Prob. 103ECh. 13.3 - Prob. 104ECh. 13.3 - Prob. 105ECh. 13.3 - Prob. 106ECh. 13.3 - Prob. 107ECh. 13.3 - Prob. 108ECh. 13.3 - Prob. 109ECh. 13.3 - Prob. 110ECh. 13.3 - Prob. 111ECh. 13.3 - Prob. 112ECh. 13.3 - Prob. 113ECh. 13.3 - Prob. 116ECh. 13.3 - Prob. 117ECh. 13.4 - Prob. 120ECh. 13.4 - Prob. 121ECh. 13.4 - Prob. 122ECh. 13.4 - Prob. 123ECh. 13.4 - Prob. 124ECh. 13.4 - Prob. 125ECh. 13.4 - Prob. 126ECh. 13.4 - Prob. 127ECh. 13.4 - Prob. 128ECh. 13.5 - Prob. 131ECh. 13.5 - Prob. 132ECh. 13.5 - Prob. 133ECh. 13.5 - Prob. 134ECh. 13.5 - Prob. 135ECh. 13.5 - Prob. 136ECh. 13.5 - Prob. 137ECh. 13.5 - Prob. 138ECh. 13.5 - Prob. 139ECh. 13.5 - Prob. 140ECh. 13.5 - Prob. 141ECh. 13.5 - Prob. 142ECh. 13.5 - Prob. 143ECh. 13.5 - Prob. 144ECh. 13.5 - Prob. 145ECh. 13.5 - Prob. 146ECh. 13.5 - Prob. 147ECh. 13.5 - Prob. 148ECh. 13.5 - Prob. 149ECh. 13.5 - Prob. 150ECh. 13.5 - Prob. 151ECh. 13.5 - Prob. 152ECh. 13.5 - Prob. 153ECh. 13.5 - Prob. 154ECh. 13.5 - Prob. 155ECh. 13.5 - Prob. 156ECh. 13.5 - Prob. 157ECh. 13.5 - Prob. 158ECh. 13.5 - Prob. 159ECh. 13.5 - Prob. 160ECh. 13.5 - Prob. 161ECh. 13.5 - Prob. 162ECh. 13.5 - Prob. 165ECh. 13.5 - Prob. 166ECh. 13.5 - Prob. 167ECh. 13.5 - Prob. 168ECh. 13.5 - Prob. 169ECh. 13.5 - Prob. 170ECh. 13.5 - Prob. 171ECh. 13.5 - Prob. 172ECh. 13.5 - Prob. 173ECh. 13.5 - Prob. 174ECh. 13.5 - Prob. 175ECh. 13.5 - Prob. 176ECh. 13.5 - Prob. 177ECh. 13.5 - Prob. 178ECh. 13.5 - Prob. 179ECh. 13.5 - Prob. 180ECh. 13.5 - Prob. 181ECh. 13.5 - Prob. 182ECh. 13.5 - Prob. 183ECh. 13.A - Prob. 1ECh. 13.A - Prob. 2ECh. 13.A - Prob. 3ECh. 13.A - Prob. 4ECh. 13.A - Prob. 5ECh. 13.A - Prob. 6ECh. 13.A - Prob. 7ECh. 13.A - Prob. 8ECh. 13.A - Prob. 9ECh. 13.A - Prob. 10ECh. 13.A - Prob. 11ECh. 13.A - Prob. 12ECh. 13.A - Prob. 13ECh. 13.A - Prob. 14ECh. 13.A - Prob. 15ECh. 13.A - Prob. 16ECh. 13.A - Prob. 17ECh. 13.A - Prob. 18ECh. 13.A - Prob. 19ECh. 13.A - Prob. 20ECh. 13.A - Prob. 21ECh. 13.A - Prob. 22ECh. 13.A - Prob. 23ECh. 13.A - Prob. 24ECh. 13.A - Prob. 25ECh. 13.A - Prob. 26ECh. 13.A - Prob. 27ECh. 13.A - Prob. 28ECh. 13.A - Prob. 29ECh. 13.A - Prob. 30ECh. 13 - Prob. 184CECh. 13 - Prob. 185CECh. 13 - Prob. 186CECh. 13 - Prob. 187CECh. 13 - Prob. 188CECh. 13 - Prob. 189CECh. 13 - Prob. 190CECh. 13 - Prob. 191CECh. 13 - Prob. 192CECh. 13 - Prob. 193CECh. 13 - Prob. 194CECh. 13 - Prob. 195CECh. 13 - Prob. 196CECh. 13 - Prob. 197CECh. 13 - Prob. 198CECh. 13 - Prob. 199CECh. 13 - Prob. 200CECh. 13 - Prob. 201CECh. 13 - Prob. 202CECh. 13 - Prob. 203CECh. 13 - Prob. 204CECh. 13 - Prob. 205CECh. 13 - Prob. 206CECh. 13 - Prob. 207CECh. 13 - Prob. 208CECh. 13 - Prob. 209CECh. 13 - Prob. 210CECh. 13 - Prob. 211CECh. 13 - Prob. 212CECh. 13 - Prob. 213CECh. 13 - Prob. 214CECh. 13 - Prob. 215CECh. 13 - Prob. 216CECh. 13 - Prob. 217CECh. 13 - Prob. 218CECh. 13 - Prob. 219CECh. 13 - Prob. 220CECh. 13 - Prob. 221CECh. 13 - Prob. 222CECh. 13 - Prob. 223CECh. 13 - Prob. 224CECh. 13 - Prob. 225CECh. 13 - Prob. 226CECh. 13 - Prob. 227CECh. 13 - Prob. 228CECh. 13 - Prob. 229CECh. 13 - Prob. 230CECh. 13 - Prob. 231CE
Knowledge Booster
Similar questions
- In sample 400 parts manufactured by a factory, the number of defective parts was found to be 30. The company, however, claimed that almost 5% of their product is defective. Is the claim tenable?arrow_forwardManufacturers of tires report that car tires should be able to last an average of 50,000 miles. A new tire company produces a different type of tread and tests 100 randomly selected tires. This sample of 100 tires lasted an average of 51,500 miles. Assuming the new type of tread does not improve the mileage of the tire, 200 sample means were simulated and displayed on the dotplot. Simulated Tire Mileage +++ +++H 47,000 48,000 49,000 50,000 51,000 52,000 53,000 Mean mileage Using the dotplot and the sample mean mileage, is there convincing evidence that the new type of tread improves the mileage of the tire? Yes, because a mean mileage of 51,500 or more occurred only 14 out of 200 times, the mean mileage is statistically significant. There is convincing evidence the new type of tire tread improves mileage of the tire. Yes, because a mean mileage of 51,500 or less occurred 186 out of 200 times, the mean mileage is statistically significant. There is convincing evidence the new type of…arrow_forwardValues of height in inches (X) and weight in pounds (Y) are recorded froma sample of 200 male college students. The resulting summary statistics arex̄ = 71.2 in, ȳ= 164 lb., sX = 1.9 in, sY = 16.4 lb., sXY = 22.54 in. X lb.,and rXY = 0.8. Convert these statistics to the metric system (meters andkilograms).arrow_forward
- In a study aimed at creating reference values, abdominal circumference (measured in cm) was measured in adult men. It was found that the relationship to age could be described as abdominal circumference = 82 + 0.3 x age a) What is the analysis that produces such a formula called? b) At what age is the average abdominal circumference 100 cm?arrow_forwardIn studying his campaign plans, Mr. Singleton wishes to estimate the difference between men's and women's views regarding his appeal as a candidate. He asks his campaign manager to take two random independent samples and find the 80%80% confidence interval for the difference. A random sample of 508508 male voters and 605605 female voters was taken. 108108 men and 193193 women favored Mr. Singleton as a candidate. Find this confidence interval. Step 1 of 4 : Find the values of the two sample proportions, pˆ1�^1 and pˆ2�^2. Round your answers to three decimal places.arrow_forwardAllegiant Airlines is considering an overbooking policy for one of its flights. The airplane has 50 seats, but Allegiant is considering accepting more reservations than seats because sometimes passengers do not show up for their flights, resulting in empty seats. The PassengerAppearance worksheet in the file Overbooking contains data on 1,000 passengers showing whether or not they showed up for their respective flights. In addition, Allegiant has conducted a field experiment to gauge the demand for reservations for the current flight. During this experiment, they did not limit the number of reservations for the flight to observe the uncensored demand. The following table summarizes the result of the field experiment. No. of Reservations Demanded Probability 48 0.05 49 0.05 50 0.15 51 0.30 52 0.25 53 0.10 54 0.10 Suppose Allegiant receives a marginal profit of $108 for each passenger who books a reservation (regardless of whether they show up). In addition, suppose…arrow_forward
- Sir Francis Galton, a cousin of James Darwin, examined the relationship between the height of children and their parents towards the end of the 19th century. It is from this study that the name "regression" originated. You decide to update his findings by collecting data from 110 college students, and estimate the following relationship: Studenth=19.6+ 0.73x Midparh, R²=0.45, SER=2.0 (7.2) (0.10) where Studenth is the height of students in inches, and Midparh is the average of the parental heights. Values in parentheses are heteroskedasticity robust standard errors. (Following Galton's methodology, both variables were adjusted so that the average female height was equal to the average male height.) For the following questions except (d), type your answers in two decimal places. (a) If we test for the statistical significance of the slope coefficient, the relevant f-statistic is t = (b) Construct a 95% confidence interval for a one inch increase in the average of parental height: ( (c)…arrow_forwardProduct Quality Value for Money Ease of use 0.8 0.6 0.7 21 0.2 0.5 0.8 3. 0.6 0.3 0.5 4 (Proposed) 0.4 0.7 0.1 Importance weight I 1.6 A company conducted a survey of shoppers to understand customer buying habits and determine the share of shoppers that a new product might attract. The customer rated three existing products and one proposed new product on three dimensions: 1.Quality, 2. Durability, and 3. Ease of use. The results of this survey are shown in the following table. The expected market share for the new proposed product (product number 4) is: (2.0) A. 46.3 В. 25.2 C. 15.1 D. 11.6 20.0 E.arrow_forwarda) For each, find the expressions for marginal utilities and the marginal rate of substitution, and determine whether monotonicity and convexity are met.arrow_forward
- In studying his campaign plans, Mr. Singleton wishes to estimate the difference between men's and women's views regarding his appeal as a candidate. He asks his campaign manager to take two random independent samples and find the 80%80% confidence interval for the difference. A random sample of 508508 male voters and 605605 female voters was taken. 108108 men and 193193 women favored Mr. Singleton as a candidate. Find this confidence interval. Step 2 of 4 : Find the critical value that should be used in constructing the confidence interval.arrow_forwardWhat is differance between three sector ecnomoy and four sector ecnomoyarrow_forwardCa = 40 + 0.80 (Y-T) Ig = 30 Xn= 10 T=20 G=20 DI-Y-Tarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Principles of Economics (12th Edition)EconomicsISBN:9780134078779Author:Karl E. Case, Ray C. Fair, Sharon E. OsterPublisher:PEARSON
Engineering Economy (17th Edition)EconomicsISBN:9780134870069Author:William G. Sullivan, Elin M. Wicks, C. Patrick KoellingPublisher:PEARSON
Principles of Economics (MindTap Course List)EconomicsISBN:9781305585126Author:N. Gregory MankiwPublisher:Cengage Learning
Managerial Economics: A Problem Solving ApproachEconomicsISBN:9781337106665Author:Luke M. Froeb, Brian T. McCann, Michael R. Ward, Mike ShorPublisher:Cengage Learning
Managerial Economics & Business Strategy (Mcgraw-...EconomicsISBN:9781259290619Author:Michael Baye, Jeff PrincePublisher:McGraw-Hill Education
Principles of Economics (12th Edition)
Economics
ISBN:9780134078779
Author:Karl E. Case, Ray C. Fair, Sharon E. Oster
Publisher:PEARSON
Engineering Economy (17th Edition)
Economics
ISBN:9780134870069
Author:William G. Sullivan, Elin M. Wicks, C. Patrick Koelling
Publisher:PEARSON
Principles of Economics (MindTap Course List)
Economics
ISBN:9781305585126
Author:N. Gregory Mankiw
Publisher:Cengage Learning
Managerial Economics: A Problem Solving Approach
Economics
ISBN:9781337106665
Author:Luke M. Froeb, Brian T. McCann, Michael R. Ward, Mike Shor
Publisher:Cengage Learning
Managerial Economics & Business Strategy (Mcgraw-...
Economics
ISBN:9781259290619
Author:Michael Baye, Jeff Prince
Publisher:McGraw-Hill Education