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An inspector examines a large shipment of several thousand laser pointers by randomly selecting and then inspecting 8 laser pointers. Suppose that 6% of the laser points are defective. What is the probability that exactly two of the eight laser pointers are defective?
Show all work as to how you arrived at your answer.
Does this indicate that the insurance claims of single people under the age of 25 is higher than the national percent reported by the large insurance company? State the null and alternate hypothesis then give the test statistic and your conclusion..
Imagine a very crowded large city, with each person standing on his or her own 2-foot-by-2-foot square, where the squares are adjacent
What is the probability that it takes at least seven hours before the next three babies are born?
A chemical process converts lead to gold. However, the production varies due to the powers of the alchemist. It is known that the process is normally distributed, with a standard deviation of 2.5 g. How many samples must be taken to be 90% certain..
Charles Brandon is thinking about investing in the Purple Arrow Company, which makes central air conditioning units. The company has been in business.
in the test of a certain hypothesis the p-value corresponding to the test statistic is 0.0316. can the null hypothesis
What is the mean and standard deviation of the flow time? What is the probability that the total time will be less than 920 seconds?
What information would you need to consider, in order to make an informed decision?
It is known from previous studies that the population variances are 8.1 and 7.3 respectively. Using a level of significance of .01, is there evidence that the out of state students may be receiving lower grades? Fully explain your answer.
Develop a scatter plot of the variables Store Size and Weekly Sales. Identify the dependent variable. Briefly describe the relationship between the two variable
use normal approximation to estimate the probability of passing a truefalse test of 60 questions if the minimum
Based on these sample results, should Blue dot conclude there is an image difference among the three companies? Use a significance level equal to 0.05.
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