QUESTION FOURA bottling company in Ghana is interested in the eftects of three methods used tosanitize its glass containers. The table below sows the three different methods and thesanitation grades of glass containers produced by the company.Sanitation GradeMarginalMethodAcceptableUnacceptable14013263B8974441409850Determine whether sanitation grade is related to method used to sanitize glasscontainers. Use a significance level of 5%.

Chi-square test for independence: The test is used to check whether the two nominal variables are…

QUESTION FOUR A bottling company in Ghana is interested in the effects of three methods used to sanitize its glass containers. The table below sows the three different methods and the sanitation grades of glass containers produced by the company. Method Sanitation Grade Acceptable Marginal Unacceptable 140 132 63 89 74 44 140 98 50 Determine whether sanitation grade is related to method used to sanitize glass containers. Use a significance level of 5%.

QUESTION FOUR A bottling company in Ghana is interested in the effects of three methods used to sanitize its glass containers. The table below sows the three different methods and the sanitation grades of glass containers produced by the company. Method Sanitation Grade Acceptable Marginal Unacceptable 140 132 63 89 74 44 140 98 50 Determine whether sanitation grade is related to method used to sanitize glass containers. Use a significance level of 5%.

Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)

6th Edition

ISBN:9781337111348

Author:Bruce Crauder, Benny Evans, Alan Noell

Publisher:Bruce Crauder, Benny Evans, Alan Noell

Chapter5: A Survey Of Other Common Functions

Section5.3: Modeling Data With Power Functions

Problem 6E: Urban Travel Times Population of cities and driving times are related, as shown in the accompanying...

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Urban Travel Times Population of cities and driving times are related, as shown in the accompanying table, which shows the 1960 population N, in thousands, for several cities, together with the average time T, in minutes, sent by residents driving to work. City Population N Driving time T Los Angeles 6489 16.8 Pittsburgh 1804 12.6 Washington 1808 14.3 Hutchinson 38 6.1 Nashville 347 10.8 Tallahassee 48 7.3 An analysis of these data, along with data from 17 other cities in the United States and Canada, led to a power model of average driving time as a function of population. a Construct a power model of driving time in minutes as a function of population measured in thousands b Is average driving time in Pittsburgh more or less than would be expected from its population? c If you wish to move to a smaller city to reduce your average driving time to work by 25, how much smaller should the city be?
Question 3 Shoprite is a busy center for residents in East Legon and its surrounding community. Assume that 2 customers arrive every 12 minutes and 3 customers are served every 15 minutes and that currently, there is only one cashier. (i).Determine the average waiting time in minutes before service begins. (ii). Advice the management the proportion of the time that a customer has to wait. (B). Management perceives that the waiting time computed in (ii) above is not acceptable and is faced with two options. Management can either employ an assistant for the cashier or open a second cash machine. The former, if implemented, will enable 4 requests to be served every 15 minutes and the assistant will receive a monthly salary of GH₵160. The latter, if implemented will improve the arrival rate to 1 customer every 12 minutes. However, it requires an initial capital outlay of GH₵3000 and the cashier who will operate the cash machine will receive a monthly salary of GH₵250. The shop…
In order to determine whether a particular medication was effective in curing the common cold, one group of patients was given the medication, while another group received sugar pills. The results of the study are shown below. PatientsCured PatientsNot Cured Received medication 70 10 Received sugar pills 20 50 We are interested in determining whether the medication was effective in curing the common cold.
PCBs and Pelicans. Polychlorinated biphenyls (PCBs), industrial pollutants, are known to be carcinogens and a great danger to natural ecosystems. As a result of several studies, PCB production was banned in the United States in 1979 and by the Stockholm Convention on Persistent Organic Pollutants in 2001. One study, published in 1972 by R. W. Risebrough, is titled ‘‘Effects of Environmental Pollutants Upon Animals Other Than Man’’ (Proceedings of the 6th Berkeley Symposium on Mathematics and Statistics, VI, University of California Press, pp. 443–463). In that study, 60 Anacapa pelican eggs were collected and measured for their shell thickness, in millimeters (mm), and concentration of PCBs, in parts per million (ppm). Following is a relative-frequency histogram of the PCB concentration data.