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Manufacturing and Product Development
In a quarter-pound bag of red pistachio nuts, some shells are too difficult to pry open by hand. Suppose the random variable X, the number of pistachios in a randomly selected bag that cannot be opened by hand, has the probability distribution given in the table below.
X
0
1
2
3
4
5
P( x)
0.500
0.250
0.100
0.050
0.075
0.025
a. Is this a valid probability distribution? Justify your answer.
b. Find the mean, variance, and standard deviation of X.
c. Find the probability X takes on a value less than the mean.
d. Suppose two bags of pistachios are selected at random. What is the probability that both bags have four or more pistachios too difficult to open by hand?
If there is a significant difference between proportions of females and males who plan to vote for the incumbent president. what is the p value of the test.
Excel or Minitab users: The data set is available in file named JobSalary. All data sets can be found in your eBook or on your Student CD. Use = .05 to test for a significant difference among the mean annual salaries for the three job fields.
approximately 10 of the glass coming off a production line have serious flaws in the glass. if two bottles are randomly
What was the intention to make "Spirited Away"? Discuss the significance of the movie?
For each pair of variables, specify which variable is the explanatory variable and which is the response variable in the relationship between them.
The formal addition rule expressed the probability of a or b as follows: p(a or b) =p(a)+p(b)-p(a and b). Rewrite the expression for p(a or b) assuming that the addition rule uses the exclusive or instead of the inclusive or (recall that the exclusiv..
This requires you evaluate the data (on the next sheet) and apply Queueing Theory to determine the characteristics of the queues. Please refer to the concept on Queuing Theory for the procedures to do.
an experiment is conducted in which 60 participants each fill out a personality test but not according to the way they
Can you please say which formula you're using if any. It's hard for me to understand problems with percents. We have just covered Bayes rule, conditional probability, multiplicative rule, additive rule, complement and independence.
Given that a vehicle is imported, what is the conditional probability that it is a light truck?- Are the events "vehicle is a light truck" and "vehicle is imported" independent? Justify your answer.
Identify the population and sample of interest to the researchers.- Describe the variables measured in the study as quantitative or qualitative.
In classical hypothesis testing, test statistic is to critical value what the?
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