• Q : Sand cores for a factory manufacturing engine blocks....
    Basic Statistics :

    An industrial oven used to cure sand cores for a factory manufacturing engine blocks for small cars is able to maintain fairly constant temperatures.

  • Q : Brief scenario of a real world issue....
    Basic Statistics :

    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

  • Q : Calculating the coefficient of variation....
    Basic Statistics :

    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?

  • Q : College accounting class are normally distributed....
    Basic Statistics :

    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

  • Q : Probability of getting at least one six....
    Basic Statistics :

    What is the probability of getting at least one six in a single throw of three unbiased dice?

  • Q : Probabilities of static electricity....
    Basic Statistics :

    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.

  • Q : Tests positive on this screening test....
    Basic Statistics :

    A women tests positive on this screening test. Calculate her probability of having cancer.

  • Q : Consisting of five or more consecutive consonants....
    Basic Statistics :

    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

  • Q : Minimum number of integers....
    Basic Statistics :

    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.

  • Q : Probability of downing an attacking airplane....
    Basic Statistics :

    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

  • Q : Find the probability that the salad contains....
    Basic Statistics :

    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

  • Q : Average number of oil tankers....
    Basic Statistics :

    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.

  • Q : Compute the p value....
    Basic Statistics :

    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.

  • Q : Probability that you will find both spaces....
    Basic Statistics :

    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 ?

  • Q : Determine the p-value and interpret its meaning....
    Basic Statistics :

    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.

  • Q : Number of ternary strings of length....
    Basic Statistics :

    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

  • Q : What is the break-even quantity....
    Basic Statistics :

    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?

  • Q : Probability of undesirable and undesirable reaction....
    Basic Statistics :

    A new medication gives 10% of the users an undesirable reaction. If a sample of 14 users receive the medication, find the probability of:

  • Q : Standard deviation of the number of returns....
    Basic Statistics :

    Also, find the mean and the standard deviation of the number of returns the auditor finds to contain illegitimate deductions

  • Q : Prescribing valium for a woman....
    Basic Statistics :

    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

  • Q : Manufacturer wants to limit transportation costs....
    Basic Statistics :

    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

  • Q : Probability that a player wins....
    Basic Statistics :

    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

  • Q : Probability of getting a straight flush....
    Basic Statistics :

    A straight hands in poker consists of 5 consecutive cards regardless of suit. What is the probability of getting a straight flush?

  • Q : Confidence interval for the proportion of companies....
    Basic Statistics :

    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

  • Q : Anticipated utilization and anticipated efficiency....
    Basic Statistics :

    What quantity would be required for a profit of $2,000? What is the anticipated utilization and what is the anticipated efficiency?

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