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An industrial oven used to cure sand cores for a factory manufacturing engine blocks for small cars is able to maintain fairly constant temperatures.
Write a brief scenario of a real world issue using a one-way analysis of variance (ANOVA) that includes clearly identified independent and dependent variables, the number of levels of the independen
Calculating the coefficient of variation between heights and the weights of certain students in the ata below. Can you you conclude that the heights are more varied than the weights?
Assume grades in a college accounting class are normally distributed with a mean of 82 and a standard deviation of 7. What is the probability that a randomly selected student from this class will ha
What is the probability of getting at least one six in a single throw of three unbiased dice?
Safety and security specialists estimate that the prior probabilities of static electricity, malfunctioning electrical equipment, open flame, and sabotage to be .30, .40, .15, and .15 respectively.
A women tests positive on this screening test. Calculate her probability of having cancer.
Let L be a list of the 26 letters in the English alphabet which consists of 5 vowels and 21 consonants . Show that has a sublist consisting of four or more consecutive consonants. Assuming L begins
Find the minimum number of integers to be selected from S = {1,2,.....,9} so that the sum of two of the n integers is even.
At each of five defense stations, the probability of downing an attacking airplane is 0.10. If a plane has to pass all five stations before arriving at its target, what is the probability that it ge
A restaurant prepares a tossed salad containing on the average 5 vegetables. Find the probability that the salad contains more than 5 vegetables on 3 of the next 4 days and for the first time in Apr
The average number of oil tankers arriving each day at a certain port city is known to be 10. The facilities at the port can handle at most 15 tankers per day.
Is there evidence that the mean amount is different from 1.0 gallon (use alpha=0.01)? Compute the p value and interpret its meaning.
Assuming the you know nothing about where these co-workers have parked, what is the probability that you will find both spaces on either side of your car unoccupied ?
Is there evidence that the population mean amount is less than 25.3 hours? Use a 0.05 level of significance. Determine the p-value and interpret its meaning.
A ternary string is a sequence of digits where each digit is either 0, 1, 2. Count the number of ternary strings of length n whose first 4 digits are all the same for n > 4. Count the number of t
What is the break-even quantity (produced and sold)? And what are total revenues for the break-even quantity? What quantity would be required for a profit of $2,000?
A new medication gives 10% of the users an undesirable reaction. If a sample of 14 users receive the medication, find the probability of:
Also, find the mean and the standard deviation of the number of returns the auditor finds to contain illegitimate deductions
According to a study published by a group of sociologists, about 2/3 of the 20 million persons in this country who take valium are women. Assuming this estimate to be valid, find the probability tha
Transportation costs based on the distance of each dealership from each plant are $220 from I to A, $300 from I to B, $400 from II to A, and $180 from II to B. The manufacturer wants to limit transp
A game is played with a pair of fair dice as follows. A player rolls a pair of dice five times. He score a "hit" on any given throw in the sequence if he throws either a 7 or an 11. He wins if he sc
A straight hands in poker consists of 5 consecutive cards regardless of suit. What is the probability of getting a straight flush?
In a study of 500 executives, 315 stated that their company informally monitored social networking sites to stay on top of information related to their company. Construct a 95% confidence interval f
What quantity would be required for a profit of $2,000? What is the anticipated utilization and what is the anticipated efficiency?