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At a certain university the average attendance at basketball games has been 3325. Due to the dismal showing at the team this year, the attendance for the first 8 games has averaged only 2965 with a standard deviation of 735. The athletic director claims that the atendance is the same as last year. What is the test value needed to evaluate the claim?a) 1.39
b) 2.65
c) 3.07
d) 3.92
Is there evidence to suggest that the process average differs from the target value?
If you were going to use multiple regression to develop an appraisal model, what other quantitative variables might be included in the model?
Solve manually and then by mega stat. Indicate your decision rule, your hypotheses and your statistical and management conclusions."
Many companies use sampling to determine whether a batch should be accepted. A (n, c) sampling plan consists of inspecting n randomly selected items from a batch and accepting the batch if c or fewer sampled items are defective.
Easy-Fly Airline took a random sample of 25 flights to determine if the mean time it takes for luggage to reach the travelers departing from a flight is less than 15 minutes. The sample mean was found to be 13.8 minutes with a standard deviation o..
A fair die is rolled until win or loss occurs: For k=1 to 5: if a 6 occurs on the kth roll you win N dollars and game ends; if a number
Discuss the properties of a normal distribution. Why are there infinite possible normal distributions? Why should one assume that sample data represents a population distribution?
A 6-sided die is rolled and depending on the result a ball is then chosen from one of three boxes. If the roll results in a 1 a ball is drawn from box A
A test was conducted to find out whether gender of a spokesperson affected the likelihood that consumers would prefer a new product. A survey of consumers at trade show employing a female spokesperson determined that 70 out of 150 customers prefe..
Index number acts as a barometer for measuring the value of money. What are the characteristics of an index number? State its utility.
The field of statistics can be roughly subdivided into two areas: descriptive statistics and probability.
The difference between expected payoff under certainity and expected value of the best act without certainity is the expected:
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