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During the 2010 World Cup group stage, my friend Manmood wanted me to pay him $5 if Brazil beat Portugal. At the time, I believed that Brazil would beat Portugal with probability 0.8. For the bet to be fair, how much should Mahmood have paid me if Brazil did not beat Portgual?
Samples of size 49 are taken from a population with a σ of 17. If the mean of the sample is 25, what is the confidence interval at the 90% confidence level?
At significance level of 0.02, is this sample evidence consistent with a hypothesis that 10% or fewer of all dollar bills have anything written on them besides the normal printing?
A coin was flipped 60 times and came up heads 38 times. (a) At the .10 level of significance, is the coin biased toward heads? Show your decision rule and calculations. (b) Calculate a p-value and interpret it.
question a pga professional golf association tournament organizer is attempting to determine whether hole pin placement
Construct a 90 percent confidence interval for the true mean weight. What sample size would be necessary to estimate the true weight with an error of } 0.03 grams with 90 percent confidence?
Conduct a marketing experiment in which students are to taste 1 of 2 different soft drinks. What is the probability that the sample will have between 50% and 60% of the identificaton
Data in table represent number of consumer complaints against major U.S. airlines. If one complaint from table is arbitrarily chosen, determine the probability that it was filed against United Airlines.
If you were designing a study which group, a population or a sample, would you gather data from and why? Provide an explanation regarding whether or not the standard deviation is a biased or unbiased estimate.
Suppose that you have a sample mean of 49 and a standard deviation of 3, but now found those values from a sample of 20 observations. test the hypothesis allowing for type 1 error to equal .05.
A random sample of 50 men, 40% said they preferred walking up stairs than taking the elevator. In a random sample of 40 women
q1.the gallup organization contacts 1709 adult men who are 40 to 60 yrs of age and live in the united states and asks
A computer password consists of four characters. The characters can be one of the 26 letters of the alphabet. Each character may be used more than once.
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