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A manufacturing company is interested in predicting the number of defects that will be produced each hour on the assembly line. The managers believe that there is a relationship between the defect rate and the production rate per hour. The managers believe that they can use production rate to predict the number of defects. The following data were collected for 10 randomly selected hours. Defects Production Rate Per Hour 20 400 30 450 10 350 20 375 30 400 25 400 30 450 20 300 10 300 40 300 Given these sample data, the simple linear regression model for predicting the number of defects is approximately = 5.67 + 0.048x.
A currency trader observes that in the spot exchange market, 1 U.S. dollar can be exchanged for 9 Mexican pesos or for 111.23 Japanese yen. What is the cross-exchange rate between the yen and the peso
What is the probability that of today's 1,000 callers at least 5 received a busy signal? Use the poisson approximation to the binomial. (Round your answer to 4 decimal places.)
the heights and weights of 11 men between the ages of 21 and 26 were measured. the data are presented in the table
1 the shape of the distribution of the time required to get an oil change at a 10-minute oil change facility is
question in 200534 of workers reported that their jobs were more difficultwith more stressand 37 reported that they
Faced with rising fax costs, a firm issued a guideline that transmissions of 10 pages or more should be sent by 2-day mail instead. Exceptions are allowed, but they want the average to be 10 or below.
Correct answerThe "average" amount of error expected in predictions The number of cases that have a non-zero residual The strength of the correlation between X and Y
Hypothesis test for two factors ANOVA. Describe what thses represent and, based on figure, whether there is a problem with the data r otherwise.
a potential investor conducted a 144 day survey in each theater in order to determine the difference between the
Choose a business problem that is based upon an experience from your place of work or home environment. Briefly describe the business problem and the research methodology that you would employ to gather data and test your hypothesis
a study showed that the correlation coefficient for iqs of husbands and wives was 0.6. in each case determine whether
It has been determined that the mean life is 1000 hours and the standard deviation is 50 hours. It can be concluded that at least 89% of the bulbs will last between?
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