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Hypothesis testing with one way ANOVA. 29 randomly selected subjects were exposed to commercials shown in more involving programs. (2) 29 randomly selected subjects were exposed to commercials shown in less involving programs and (3) 29 randomly selected subjects watched commercials only (note: this is called the control group). The mean brand recall scores for these three groups were, respectively, X1-bar = 1.21, X2-bar= 2.24, and X3-bar = 2.28. Furthermore, a one-way ANOVA of the data shows that SST = 21.40 and SSE = 85.56.
Describe appropriate treatment means μ1, μ2 and μ3. After that Test for statistically significant differences between these treatment means. Set α = 0.05.
To test whether there is a significant mean difference among the three.
Determination of Nominal, Ordinal, Interval, Ratio.Temperature is an example of what level of measurement.
Find out the area using Normal distribution. As, if Z is a standard normal variable find out the probability that Z lies.
The heights of young women are approximately normal with mean 65 inches and standard deviation 2.5 inches.
Design a Linear programming problem for the flair Furniture Company and find the combination of tables and chairs that the company must produce to maximize profits.
A Cornell university study of wage differentials between men and women reported that one of the reasons wages for men are higher than wages for women is that men tend to more years of work experience than women. Suppose the following results were ..
Develop percent frequency distribution and construct bar chart and pie chart.
She is interested in testing the null hypothesis that the mean SAT score is the same for each type of schooling using the one-way ANOVA. Some summary statistics for the three groups are given below, followed by the one-way ANOVA table.
What is the probability the average of the sample is more than $38000 and What is the standard deviation of the sample mean
A check of dorm rooms on a large college campuses revealed that 38% had refrigerators, 52 percent had TVs and 21 percent had both a TV and a refrigerator. What's the probability that a randomly selected dorm room has.
Determine fraction of employees cost between $1,500 and $2,000 per year?
A regression model between sales (Y in $1,000), unit price (X 1 in dollars) and television advertisement (X 2 in dollars) resulted in the following function: = 7 - 3X1 + 5X 2 For this model SSR = 3500, SSE = 1500, and the sample size is 18...
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