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Parts
A company manufacturing electronic components for home entertainment systems buys electrical connectors from three suppliers. The company prefers to use supplier A because only 1% of those connectors prove to be defective, but supplier A can deliver only 70% of the connectors needed. The company also must purchase connectors from two other suppliers, 20% from supplier B and the rest from supplier C.
The rates of defective connectors from B and C are 2% and 4%, respectively. You buy one of these components, and when you try to use it you find that the connector is defective. What's the probability that your component came from supplier A?
Use the empirical rule to estimate the number of farms whose land and building values per acre are between $1100 and $1700.
What is the probability that an individual will be a salaried employee whose intrinsic satisfaction value is 5 or more?
For the following data, draw a scatter plot, calculate the regression equation, and conduct a six-step hypothesis test to determine whether problems completed positively predicts students' final grades.
Probabilities can be approximated by the normal probability distribution? Explain What is the probability of between 100 and 110 successes? What is the probability of 130 or more succeses?
a researcher wants to compare how college graduates and college drop-outs feel about the legalization of marijuana. she
an airline company sells 160 tickets for a plane with 150 seats knowing that the probability that a passenger will not
In an online survey of 4,001 respondents, 8% were classified as productivity enhancers who are comfortable with technology and use the Internet for its practical value (data extracted from M. Himowitz, "How to Tell What Kind of Tech User You Are,"..
the employees of cartwright manufacturing are awarded efficiency ratings. the distribution of the ratings approximates
A social worker is interested in estimating the average length of time spent outside of prison for first offenders who later commit a second crime and are sent to prison again.
You want a good guess of the professor's true height (or at least a good guess of how tall the students think the professor is). How would you summarize these data? Why? What might explain guesses as low as 56"?
suppose a population has mean micro 100 and the population standard deviation s 25. also suppose a random sample of
Make a point estimate of the population mean difference in endurance after taking the herbs. Make a 95% confidence interval estimate of the population mean difference.
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