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During his career in the NHL, hockey great Wayne Gretzky had the following season-total goals for each of his 20 seasons
51 55 92 71 87 73 52 62 40 5440 41 31 16 38 11 23 25 23 9
Construct a frequency distribution and a histogram for these data.
The mean salary of federal government employees on the General Schedule is $59,593. The average salary of 30 state employees who do similar work is $58,800 with population standard deviation = $1500. At the 0.01 level of significance, can it be concl..
1. Calculate the sample size needed given these factors: one-tailed t-test with two independent groups of equal size small effect size (see Piasta, S.B., & Justice, L.M., 2010) alpha =.05
What types of tests were used for each of those variables and was the test used a reasonable selection for each of these test?
Systematic Sampling Technique is used to select 5 numbers between 1 and 200. The first selected number is 12.
Calculate and graph the distribution of x at T = 6 months and T = 12 months, and compare these with the theoretical distributions. Comment on the effect of n and M.
During the fall harvest season in the United States, pumpkins are sold in large quantities at farm stands. Often, instead of weighing the pumpkins prior to sale, the farm stand operator will just place the pumpkin in the appropriate circular cutout o..
The ages (in years) of the employees at a particular computer store are 36, 32, 22, 32, 33 . Assuming that these ages constitute an entire population, find the standard deviation of the population. Round your answer to at least two decimal plac..
Calculate the regression equation for this data
Calculate a 95% confidence interval for the unknown population mean business age - Test, at the 5% level of significance, whether location (Parramatta or Sydney CBD) of the business is related to type of business (privately held, publicly traded or..
question 1 a is a gradual long-term up-or-down movement of demand.answer seasonal pattern cycle trend
With a visual example please,Explain the concept of sum of squares.
A random sample of customer order totals with an average of $78.25 and a population standard deviation of $22.50. Calculate a 90% confidence interval fro the mean, given a sample size of 75 orders.
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