Critical f value for a sample
What is the critical F value for a sample of 7 observations in the numerator and 6 in the denominator? Use a two-tailed test and the 0.10 significance level.
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A correlation is computed for a sample of n = 18 pairs of X and Y values. What correlations are statistically significant with ? = .05, two tails. 1. correlations greater than or equal to 0.456 and correlation less than or equal to -0.456 2.
According to the empirical rule, if the data form a "bell-shaped" normal distribution, what percent of the observations will be contained within 3 standard deviations around the arithmetic mean.
Daily demand for newspapers for the last 10 days has been as follows: 12, 13, 16, 15, 12, 18, 14, 12, 13, 15. Forecast sales for the next day (Day 11) using a three-day weighted moving average where the weights are 3, 1, and 1 (the highest weight
Heights of men on a baseball team have a bell shaped distribution with a mean of 184 cm and a standard deviation of 5 cm . Using the empirical rule, what is the approximate percentage of men between the following values? a. 179 cm and 189 cm. b: 1
Arbitron Media Research Inc. conducted a study of the iPod listening habits of men and women. One facet of the study involved the mean listening time. It was discovered that the mean listening time for men was 29 minutes per day.
Find the Region variable in the SampleDataSet. Using SampleDataSet, create a frequency distribution or a histogram. Based on the frequency distribution or histogram, estimate the probability associated with each region.
What is the critical F value for a sample of six observations in the numerator and four in the denominator? Use a two-tailed test and the 0.10 significance level.
What is the critical F value for a sample of four observations in the numerator and seven in the denominator? Use a one-tailed test and the 0.01 significance level.
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