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Two prison inmates communicate in binary by tapping on the adjacent wall. Suppose that the probability of receiving a zero given that a zero was sent is 0.98, the probability of receiving a one given that a one was sent is 0.96, and the probability of sending a one is 0.6.
(a) If one is received, what is the probability that a zero was sent?
(b) If a single digit is sent, what is the probability that the opposite digit is received?
(c) If two digits are sent independently, what is the probability that both digits received are the ones that were sent?
What is the margin of error? What is the 95% confidence interval for the proportion of the population of employees who strongly dislike their current work experience?
in each of the following situations the sampling frame does not match the population resulting in undercoverage. give
A computer system uses passwords constructed from the 26 letters (a to z) or 10 integers (0 to 9). Suppose there are 10000 users on the system with unique passwords. A hacker randomly selects (with replacement) passwords from the potential set.
How many bolts should be sampled in order to make us 95% confident that the sample mean bolt length is within .02 inches of the true mean bolt length?
The population of lengths of aluminium coated steel sheets is normally distributed with a mean of 30.05 inches and a standard deviation of 0.20 inches. A sample of four metal sheets is randomly selected from a batch. What is the possibility that t..
Summarize in words each of the following findings: The Tukey test was significant at .01 for two groups (A and E).
If an executive submits an expense of $720 for a one-day stay in Moscow, should this expense be considered unusually high? Why or why not?
The Normal distribution with mean 130 gallons and standard deviation 12 gallons. On a randomly selected day, the probability that the store sells at least 154 gallons is?
With a mean of $70,000 and a standard deviation of $20,000. A loan application is received this morning. What is the probability: a. The amount requested is $80,000 or more?
Also, 72 percent of the managers have MBA degrees. Using the probability formulas, find the proportion of employees who either have MBAs or are managers.
Assume that the mean parameter θ for the RV L is unknown. To estimate it, a random sample of n = 10 light bulbs is selected, and the lifetime of each light bulb is measured. Let X denote the number of those 10 sampled light bulbs that burn longer ..
Cold Stone Creamery has recorded demand for the particular flavor of ice cream during first seven days of July. Results are as follows: Forecast the sales for 8th day of July using 5-day moving average.
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