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Suppose a simple random sample of size 50 is selected from a population with σ= 10. Find the value of the standard error of the mean in each of the following case (use the finite population correction factor if appropriate)
The population size is infiniteThe population size is N = 50,000The population size in N = 5000The population size is N = 500
In a Gallup poll of 1,038 adults, 540 said that second-hand smoke is very harmful. What is the percentage of adults who said second-hand smoke is very harmful.
A clothing retailer wishes to investigate the relationship between order size (in dollars) and the level of satisfaction of the customer.
Suppose that 98% of the customers in your market have Internet access, and you select a random sample of 500 customers. What is the probability that the sample has:
Suppose there are two samples of size 6 and 7, with a rank sum of 58 in the sample of size 6. Using the Wilcox on rank-sum test, evaluate the significance of the results, assuming there are no ties.
Suppose a fair coin is tossed n times. The probability of obtaining head and tail are the same because this is a fair coin. The proportion of heads is defined as the number of heads appeared divided by n.
Hello, can you please help me solve this inequality with absolute values?
Would the null hypothesis be accepted or rejected in this case?
The sampling distribution of the average score and Suppose x' is your average pay for the 100 weeks. Then x' has approximately
The Weithoff company has a contract to produce 10000 garden hoses for a customer. Weithoff has 4 different machines that can produce this kind of hose.
The share of the national car manufcturers market in South Africa is shown in the table below:
They select a random sample of 525 employment records, and find that 229 of the people are females. State the conditions needed to build a confidence interval.
A recent study compared the time spent together by single- and dual-earner couples. According to the records kept by the wives during the study, the mean amount of time spent together watching television among the single-earner couples
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