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To find out the estimate of between and within treatments.
Samples were selected from 3 populations. The data obtained follow.
Sample 1
sample 2
sample 3
93
77
88
98
87
75
107
84
73
102
95
85
82
Xj
100
79
Sj2
35.33
35.6
43.5
a. calculate the between-treatments estimate of the standard deviation (to the second power). b. calculate the within- treatment estimate of the standard deviation to the second power. c. At the α = .05 level of significance, can we reject the null hypothesis that the three population means are equal? Explain. d. Set up the anova table for this problem.
A major study examined the relationship between cause of death (heart attack, cancer, stroke, accident, etc.) and age. A good way to graphically represent the relationship is with
Compute the within group variability. Do you require any post hoc testing? Why or why not? Decribe in detail.
The mean number of passengers per flight is 160 with a standard deviation of 20. The aircraft used for the route has 200 seats.
Which of the following is NOT true regarding the normal probability distribution.
All but one of the following statements contain a blunder. Which one does not contain a blunder
Utilizing your charts stated whether the filling operation has been in control for every of the 18 operating hours this day.
Suppose the sample variance for 30 parts turns out to be s 2 = .0005. Use α = .05 to test whether the population variance specification is being violated.
The probability is 1 in 4,000,000 that a single auto trip in the United States will result in a fatality. Over a lifetime, an average U.S. driver takes 50,000 trips. (a) What is the probability of a fatal accident over a lifetime? Describe your re..
The manufacturer of a coffee dispensing machine claims the ounces per cup is normally distributed with population mean equal to 8 ounces and standard deviation equal to 0.9 ounces. If 50 cups of coffee were measured, what is the probability that.
Determine margin of error for confidence interval in (a)?
In a regression analysis involving 30 observations, the following estimated regression equation was obtained.
To determine whether there exists mean difference among the groups:
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