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The amount of soft drink that Ann consumes on any given day is independent of consumption on any other day and is normally distributed with m = 13 oz and s = 2. If she currently has two six-packs of 16- oz bottles, what is the probability that she still has some soft drink left at the end of 2 weeks (14 days)? Why should we worry about the validity of the in- dependence assumption here?
What is the probability of flipping a coin 6 times and getting 4 or more heads?
Determined that their mean waiting time was 15 minutes and that the standard deviation was 4 minutes. The 88% confidence interval for the population mean of waiting times is?
assume a flipping a coin has a 50 - 50 chance of heads or tails. you flip a coin until the first time it comes up
percentage of persons completing 4 years of college23 26 30 34 26 25 23 22 31 2224 38 33 27 27 34 24 24 24 2122 24 28
The standard deviation was $6050. Is there evidence at the 1% significance level that the cost of attendance has increased? State the hypothesis?
Vote against a proposed pay increase. 320 would vote FOR while 1280 would vote against the proposal. Construct a 95.44% confidence interval for the proportion voting against the proposal.
Compute the mean and median.Compute the variance, standard deviation, range, and co-efficient of variation.Are the data skewed? If so, how?
What is CPI? Given that the CPI trends for travel time for 2010 and this year are 183.42 and 191.35 respectively, calculate the current value of travel time if it was $24.50 per hour in 2010.
A few random results for you to ponder...do the results justify the conclusions? Why or why not? Give a reason why the conclusions don't necessarily follow from the statement.
describe the role and importance of listening skills in cross-cultural communication. how can these skills be learned
The distinction between sampling with replacement and sampling without replacement. Many surveys use the census as a sampling frame. Any bias in this frame?
See if there is a difference in their means and variances.
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