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Question: Bird species. The Cornell Lab of Ornithology holds an annual Christmas Bird Count (www.birdsource.org), in which bird watchers at various locations around the country see how many different species of birds they can spot. Here are some of the counts reported from sites in Texas during the 1999 event:
228 178 186 162 206 166 163
183 181 206 177 175 167 162
160 160 157 156 153 153 152
a) Create a stem-and-leaf display of these data.
b) Write a brief description of the distribution. Be sure to discuss the overall shape as well as any unusual features.
Using twins means that only two diet variations can be tested at each blocking level. Construct this design and explain your reason for this particular construction.
What does this data tell us by itself before we do anything with it such as doing hypothesis testing or comparing it to other data? How can this be used by the M&M company?
The promo {X, : t E R) i band limited with Sx(w) = 0 for pi > w. Let {X,, : n E Z) he a proems such that E(X,,) = 0 and EPCsXid = 026,a Find the mean and autocorrelation function
Identify three discrete variables that appear in your current or future career. How do those variables affect your workplace, your product, or your personnel? How would changes in those variables affect these things?
in a game of chance a number of draws are made with replacement from a box of tickets 500 of these tickets are labeled
The airline must sell 150 seats to break even on this particular flight. On what percent of the flights does the airline make money?
The average age for the individuals in the sample is M=48.9 years. How likely is it to obtain a random sample of n=16 jurors with an average age greater than or equal to 48.9?
The grades have a bell-shaped distribution. Based on this information, which one of the following is the best estimate of the number of students with grades between 55 and 83?
Conduct the experiment described in the Scenario with 40 students from your class, adding other people if necessary to bring the total up to 40. What proportion of your sample was righteye dominant?
In a city 38% of the registered voters are republicans. Determine the sampling distribution of the sample proportion of registered voters who are republicans for samples of 85 voters. Be sure to answer the problem fully and support your answer.
find the 95 confidence interval for the difference between two means based on this information about two samples.
If a random sample of 5 observations from one population results in a standard deviation of 12 and the other random sample of 7 observations results in a standard deviation of 7.
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