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At a food processing plant, a machine produces 10 lb bags of sugar. In this particular process, it is important that the sugar content does not go below 9.9 lbs. In fact, when the bags of sugar are less than 9.9 lbs, maintenance is performed on the machine. Consider a hypothesis test where:
Ho: X > 9.9 lbs. (In this case operation is continued) Ha: X < 9.9 lbs. (In this case maintenance is performed on the machine)
Probability using discrete distribution.The probability distribution for the random variable x follows.
At the .05 level of significance, is there evidence of a difference in variability in the shipping time between the two outlets? What decision should the carpet manufacturer make?
What does it mean to say that a particular value of x has a z-score of -2.1?
Based on these results, the proportion of the variation in 1993 winnings that is explained by the average number of putts per round and driving distance
A random sample of n = 4 scores is selected from a population with µ = 80 and σ = 20. On average, how much difference would you expect between the sample mean and the population mean?
Construct a 90 percent confidence interval for the true mean weight. Describe factors which might cause variation in the weight of Tootsie Rolls during manufacture.
Your employer asks you to determine whether current salaries (DV) can be predicted from years of experience (IV) What is the right statistical test one should use and why?
A. what is the probability a randomly chosen business customer flying is on a jumbo jet? B. what is the probability a randomly chosen non-business customer is on an ordinary jet?
Determine the critical value, z0, to test the claim about the population proportion p
Calculate the MEAN and STANDARD DEVIATION for the distribution below:
Number of rescue calls received by rescue squad in city follows a Poisson distribution with mu = 2.83 per day. Squad can handle at most four calls a day. Determine the probability that squad will be able to handle all calls on a particular day?
In a test of the MicroSort method of gender selection, 51 babies are born to couples trying to have baby boys, and 39 of those babies are boys (based on data from the Genetics & IVF Institute).
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