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Please describe solution in detail, especially the assumptions that must be made, ie. what the standard deviation is:
There is a blind taste test by 100 Michelob drinkers to choose between Michelob and Schlitz. It is believed that Michelob tastes identical to Schlitz, so there is a 50% chance that a Michelob drinker would choose Schlitz. If you need any additional assumptions, be sure to justify them.
a) What is the probability that at least 40 self-described Michelob drinkers choose Schlitz?
b) What is the probability that over 55 taste testers would choose Schlitz over Michelob?
what is the definition of the odds ratio?the total number of events in the population.the probability of an event
a national football league coach is permitted to initiate 2 challenges to referee calls per game outside the final 2
the owner of a local golf course wants to estimate the difference between the average ages of males and females that
The following study was developed by Economist Simon Fass. Fass surveyed a sample population of low-income households in St. Martin. The variables analyzed were monthly income per adult and choice of rental contract for housing.
Is the sample a part of the population or the population apart of the sample? Why would researchers just not use the entire population to be more accurate? Can you give an example of a sample from a given population?
a shipment of 20 tv tubes contains 16 good tubes and 4 defective tubes. three tubes are chosen successively and at
Election officials take a random sample of 100 signatures and thoroughly investigate them to find that 84% are valid. Is this statistically significant evidence that the candidate has enough valid signatures overall? Explain.
patients who have artificial hip-replacement surgery experience pain the first day after surgery. typically the pain is
The gambler is paid later as follows, depending on the number of winners he picked. What is his expected gain? Remember, a loss is a negative gain, and that the bookie keeps the gambler's $20.
1. a candidate for one of ohios two u.s. senate seats wishes to compare her support among registered voters in the
if the standard deviation of the lifetime of a vacuum cleaner is estimated to be 300 hours how large of a sample must
A random sample of n = 4 scores is selected from a population with µ = 80 and σ = 20. On average, how much difference would you expect between the sample mean and the population mean?
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