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Guy thinks that NBA players, in general, are taller than high school basketball players. he has measured 5 NBA players, with heights 80, 84,73, 75 and 77 inches. He has measured 5 high school basketball players with heights 72, 74, 78, 73 and 76 inches. he calculates a sample mean of 77.8 for the NBA players and 74.6 for high school players. The NBA sample mean minues the high school sample mean is 3.2. He creates a randomization test to show this theory, uing the test stats described above. what is the p-valuve? round to the nearest percent
10%
11%
12% or
13%
A study regarding the relationship between age and the amount of pressure sales personnel feel in relation to their jobs revealed the following sample information.
a financial executive lives in ottawa but frequently must travel to toronto. she can go to toronto by car train or
Twenty-five percent of the employees of a large company are minorities. A random sample of 7 employees is selected. What is the probability that the sample contains exactly 4 minorities?
The average SAT verbal score for students from one high school over the last ten exams
Describe the distribution of sample means (shape, expected value, and standard error) for samples of n=36 selected from a population with a mean of µ=100 and a standard deviation of σ=12.
Consumer Reports magazine tested paints. The table below shows the overall quality score and cost in dolllars per gallon. Test for a correlation. Based on these results, do you get better quality paint by paying more?
A large bakery buys flour in 25-pound bags. The bakery uses an average of 4,860 bags a year. Preparing an order and receiving a shipment of flour involves a cost of $10 per order. Annual carrying costs are $75 per bag.
the closing stock price for each of two stocks was recorded over a 12-month period. the closing price for the dow jones
A survey of 600 non-fatal accidents showed 259 involved the use of a cell phone. Construct a 99% confidence interval for the proportion of fatal accidents that involved the use of a cell phone?
Repetitions of numbers are not permitted, i.e., the same number cannot be used more than once in a total sequence. As examples, 27, 94 or 55 would not be permitted. How many different code groups can be designed?
At a = 0.05, can you reject claim that at least 52% of adults are more probable to purchase a product when there are free samples?
Is it true that one of the important properties of time series models is that some sort of pattern in the data over time should be detected first and then used within the model?
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