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The firing rates of 100 neurons are recorded in a particular region of the brain of a monkey under each of two experimental conditions. The number of neurons in which the firing rate is greater in Condition 1 than in Condition 2 is counted. Suppose that in the population of neurons the probability of a higher firing rate for Condition 1 is 0.58.
a) What is the probability that exactly 90 out of the 100 have higher firing rates for Condition 1? (binomial distribution)
b) What is the probability that at least 40 but no more than 60 neurons have higher firing rates for Condition 1? (40<=x<60)
c) What is the number of neurons n such that the probability of more than n neurons have higher firing rates for Condition 1is 0.99?
Observations was x ¯ = 119.8 (actually 119.7692), and the 14th observation, somewhat of an outlier, was 158. What is the value of x ¯ for the entire sample?
Determine the probability that Mexican American male in the 20 -74 age range has serum cholesterol value greater than 240 mg/dl.
Assume that the number of left-handers is a binomial random variable. (Refer to the formula for mean and standard deviation for binomial prob. Distribution)
Researcher asked group of 30 students - 12 of them supported change, 13 of them didn't, and 5 had no opinion. This is not binomial model as?
You are the member of the marketing team at Sara Bellum's Pizza - the pizza for people who think too much!! Your mission is to evaluate two locations and determine if there is any difference in their suitability as locations for the next Sara Bell..
Set-up/solve the problem graphically. (How many ceiling fans and how many floor fans should be made?)
In this forum post provide your results also elucidate what they mean in context of your favorite channel. To find 95 percent confidence interval for given data.
Create a scenario for applying the Goodness of Fit application of Chi-square. State the hypotheses, the level of significance, the result and its meaning.
This is my own made up problem. I just want to learn which test would I use t,z, or Chi and HOW do I go about doing it.
Is there a statistically significant difference between the bowling averages of male nurses and those of businessmen, if last year's league play produced the following data
Using the original data, test at the 5% significance level that the population standard deviation of studying times is greater than 4 hours.
What is the purpose of a survey? What are three examples of a survey and what potential purpose could each be used for? How can one work to ensure the participants of a survey will have their responses kept private?
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