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A recent gasoline survey said that the national average price of gasoline was $1.498 a gallon. it was felt that the gasoline in Texas was significantly lower than the national average. A survey of 10 different suburbs in Dallas Texas found the average gasoline to be $ 1.294 a gallon with a standard deviation of $ .0526. What is the critical value using a=.05 and what is the test value.
Index number acts as a barometer for measuring the value of money. What are the characteristics of an index number? State its utility.
Utilizing your charts stated whether the filling operation has been in control for every of the 18 operating hours this day.
Determine a 99% confidence interval for mean pH in rainfall. How would you distinguish interval?
Write down the probability of that the median of the sample or average medians is greater or more than 320 minutes?
The manufacturer would like to establish Inventory levels such that there is only a 5% chance of running out of stock. Where the Manufacturer should set the inventory levels?
Suppose that 46 percent of families living in a certain country own a car and 18 percent own an SUV. The Addition Rule might suggest, then, that 64 percent of families own either a car or an SUV. What's wrong with that reasoning.
Your younger brother comes home one day after taking a science test. He says that someone at school told him that "60% of the students in the class scored above the median test grade." What is wrong with this statement? What if he said "60% of the..
Compute SS, variance, and standard deviation for following population of N = 7.Scores: 8, 1, 4, 3, 5, 3, and 4. The definitional formula works well with these scores. Use the definitional formula to compute SS.
A random-effects ANOVA refers to the analysis where the levels included in the study represent a random sample of all levels that exist.
Identify the indicated values or interpret the given display. In a survey of 703 randomly selected workers,
A recent article in the Myrtle Beach Sun Times reported that the mean labor cost to repair a colour television is $90 with a standard deviation of $22. Monte's TV Sales and Service completed repairs on two sets this morning. The labor cost for the..
Utilizing Excel data analysis calculate t distribution also deduce the result. Study of variance is used to investigate if there is a difference in the mean mileage of the three cars.
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