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Large oranges have a mean weight of about 200 g with a standard deviation of about 20 g and an approximate normal distribution. Each bag has 16 oranges. What is the distribution of the average weight of individual oranges?
a) N(mean = 200, std dev = 20)
b) N(mean = 200, std dev = 5)
c) N(mean = 200, std dev = 1.25)
d) N(mean = 200, std dev = 80)
If we know that the first card drawn is an ace, what is the probability that the second card drawn is also an ace? Using the idea of independence, explain why this probability is not 4/52.
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Pets. The American Veterinary Association claims that the annual cost of medical care for dogs averages $100, with a standard deviation of $30.
Several years ago a new chief executive was appointed to a group of firms. On appointment the CE expressed concern about the quality of the senior management.
In constructing 99% confidence intervals for proportions, over the long run, about what percentage of the time would each of the following happen?
On the other hand, if the market is unfavorable. ken will suffer a loss of $200.000. But ken has always been a very optimistic decision maker.
a random sample of 100 voters found that 44 were going to vote for a certain candidate. find the 99 limit for the
A consumer organization inspecting new cars found that many had appearance defects (dents, scratches, paint chips, etc.). While none had more
What sample size must you take to be 96% confident that the results will be within $.75 of the true mean cost per call?
Suppose it was reported on the news that a recent study concluded that the probability that you will get brain cancer if you use a cell phone doubled
Write out the ANOVA table just showing Sources of Variability and degrees of Freedom and indicate which SV are fixed effects and which are random.
find the t-value with n 30 having area 0.05 to its
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