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Finding the binomial distribution is suitable for normal approximation.
Estimate the indicated probability by using the normal distribution as an approximation to the binomial distribution.
With n = 20 and p = 20 and p = 0.60, estimate P (fewer than 8).
a. 0.0668
b. 0.4953
c. 0.4332
d. 0.0202
Mention your decision regarding the null hypothesis. If H 0 rejected can we conclude that treatment 2 and treatment 3 differ? Use 95 percent level of confidence.
The following study was developed by Economist Simon Fass. Fass surveyed a sample population of low-income households in St. Martin. The variables analyzed were monthly income per adult and choice of rental contract for housing.
For a normal distribution, the probability of randomly selecting a z-score greater than z = -2.00 is p = .0228.
The value of R-square indicates the amounts of variation in the dependent variable that is explained by the independent variable.
Difference in the mean number of times men and women order take-out dinners in a month? What is the p-value?
Additionally, student should use graphing function to graph data and calculate regression equation.
Using the menu systems, request descriptive statistics (mean, s.d. and variance) for both your original variables
Researchers at the Brigham & Women's Hospital recruited 2,000 participants to study the relation between diet and cholesterol.
Testout the significance of the sample correlation also develop regression equation with scatter plot. Calculate chi-square is less than the critical value
Construct a grouped frequency distribution using six classes.
Black Hole Pizza Parlor instructs its cooks to put a "handful" of cheese on each large pizza. A random sample of six such handfuls were weighed.
What is your conclusion? Are the two variables independent?
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