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Suppose the sample size from the normal population is 11. Also assume that the population standard deviation is unknown. What is the value of t for a .05 area in the right tail of this distribution?
a) 1.860
b) 1.812
c) 1.796
d) 1.771
Write Cumulative distribution function.Find the cumulative distribution function F(x).
question a recent survey of banks revealed the following distribution for the interest rate being charged on a home
Suppose we measured all the heights in centimeters, instead. There are 2.54 cm/inch? Question: What will happen to the covariance?
The mean statistic test scores is 64 and the standard deviation is 6.0. For the biology test scores, the mean is 25 and the standard deviation is
A haulage contractor has two loads to deliver to separate customers. He has 4 trailers of which 2 are new. If the trailers are randomly chosen for any particular delivery: (a) In how many ways can the trailers be allocated the deliveries?
Suppose that the cars have been categorized according to whether the car needs warranty-related repair (yes or no) and the country in which the company manufacturing the car is based
What is the probability that any given box is under the 450 grams than the box is supposed to weigh and what is the probability that the total weight of a given "2-pack" is less than 900 grams?
find the weighted mean for three exams if the first one was worth 20 and the student received a 80 the second was
Why is cohort studies more expensive than case-control studies? I know one problem is cohort studies often must be followed up for a long period to determine whether the outcome of interest has developed and they are more expense than case-control..
In a certain county, 40% of registered voters are Democrats, 32% are Republicans, and 28% are Independents. Sixty percent of the Democrats, 80% of the Republicans, and 30% of the Independents favor increased spending to combat terrorism. If a..
Scores are normally distributed with a mean of 460 and standard deviation of 80. The top 2.5 percent of the applicants would have a score of at least.
a random variable x follows a normal distribution with a mean of 10 and standard deviation of 3. a standardized value
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