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A manufacturer of electronic components is interested in determining the lifetime of a certain type of battery. A sample, in hour's of life, is as follows:: 123, 116, 122, 110, 180, 126, 125 Find all Measures of Location (Central Tendency) and Measures of Variability (Dispersion or Variation).
Find the probability that the toll collector will have to wait longer than 26.30 minutes before collecting the 8th toll.
Credit card holders follows a normal distribution with unknown mean and known standard deviation of $90. what is the 99% confidence interval for the mean?
Use frequency distribution to create a probability distribution, determine the (b) mean,(c) variance and (d) standard deviation of probability distribution and (e) interpret results in context of real life situation.
At a particular location on a river the number of fish caught per man-hour of fishing effort has a Poisson distribution with ?= 1.3 fish per man hour. Find the following probabilities:
Identify the independent and dependent variables, and Construct a nominal, ordinal, and interval level measure for each independent and dependent variable.
The calculated chi-square test statistic and the table value for a 0.05 significance level are:
What is the probability that the device will detect at least one of the two shoppers entering together?
The annual returns, in percentages, on stocks A and B for three possible states of the economy are given in the table below.
If 60 percent of those people chewing the gum are successful in stopping smoking, what is the probability that in a group of four smokers using the gum at least one quits smoking?
A random sample of 81 credit sales in a department store showed an average sale of $68.00. From past data, it is known that the standard deviation of the population is $27.00.
what is the sample space of all possible outcomes? Are the outcomes equally likely?
In Major League Baseball there are five teams in the Western Division of the National League: Arizona, Los Angeles, San Francisco, San Diego, and Colorado. How many different orders of finish are there for these five teams?
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