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The coffee/soup machine at the local bus station is supposed to fill cups with 6 ounces of soup. Ten cups of soup are brought with results of a mean of 5.93 ounces and a standard deviation of 0.13 ounces. How large a sample of soups would we need to be 95% confident that the sample mean is within 0.03 ounces of the population mean?
If, actually, the two colas are equally preferred in a larger population of tasters, p = .5 is the corresponding population proportion. Assuming that p = .5, find the value of the standardized statistic (z-score) for the sample proportion observed..
The service time in queues should not have a large variance; otherwise, the queue tends to build up. A bank regularly checks service time by its tellers.
If a member of the sales force submits an entertainment expense (dinner cost for four) of $190, should this expense be considered unusually high (and possibly worthy of investigation by the company)?
forty-three percent of marriages end in divorce. you randomly select 15 married couples. find the probability exactly 5
Granma makes a cookie using three cubic inches of her dough. Find the chance that the cookie contains at most four chocolate chips, state your assumptions.
A box has red marbles and blue marbles. The fraction p of reds is unknown. 250 marbles are drawn at random with replacement, and 102 turn out to be red. Estimate p. Attach a standard error to your estimate.
Electrical connectors manufactured by a supply company last an average of 18.2 months and follow a normal distribution with a standard deviation of 1.7 months.
Examine the classifications of security controls (physical, administrative, and technical) and the types of security controls (preventive, detective, and corrective). Explain how these different types of controls are used to enforce security polic..
Assuming this rate continues, what is the probability that there will be no more than one crash in the next 50,000 flying hours?
You are required to identify the measures of location and dispersion as well as organise the appropriate output from your software into a relevant statistical and graphical presentation of the data. Justify your choices. What are your preliminary ..
suppose two dice are rolled. let x be the random variable measuring the sum of the two numbers rolled.a find the
the final score of games of a certain spot were compared against the final point spreads established by oddsmakers. the
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