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Suppose there is sufficient evidence to reject Ho: u1=u2=u3 using a one-way ANOVA. The mean square error from the ANOVA is determined to be 24.4 The sample means was X1=3.1,x2 = 10.5, and x3 = 19.6, with a n1=n2=n3=3. Use Tukey's test to determine which pairwisemeans are significantly different using a familywise error rate of a= 0.01.
Calculate the test statistics 0 for each pairwise difference
q12 =
q13=
q23=
The critical value is
Based on this data, reject or do not reject the hypothesis H0:u1=u2, reject or do not reject the hypothesis Ho:u1=u3, and do not reject or reject the hypothesis Ho: u2=u3.
Suppose a sample of farmers is to be selected for estimating the cost of cultivation of maize per hectare. The precision is to be within 20 birr with 95% confidence level.
a multiple-choice test contains 25 questions each with four answers. assume a student just guesses on each question.a
A photo-sharing startup offers the following service. A client may upload any number N of photos and the server will compare each of the N pairs of photos with their proprietary image matching algorithms to see if there is any person that is in bo..
in a survey of 606 males ages 18-64 397 say they have gone to the dentist in the past year. construct 90 and 95
The number of degrees of freedom associated with the t test, when the data are gathered from a matched pairs experiment with 13 pairs, is:
Suppose there are two samples of size 6 and 7, with a rank sum of 58 in the sample of size 6. Using the Wilcoxon rank-sum test, evaluate the significance of the results, assuming there are no ties.
Choose a research article from your field.Write the five hypotheses that this study is testing.Write both the null and alternative hypotheses for each one.
Findout probabilities utilizing standard normal distribution. If the debt is normally distributed with a standard deviation.
In the Arnold's Muffler example for the exponential distribution, the average rate of service was given as 3 per hour, and the times were ex-pressed in hours.
A commuter travels many miles to work each morning. She has timed this trip 5 times throughout the last month. The time (in minutes) required to make this trip was 44, 39, 41, 35, and 41.
Suppose in fact that 47% of the population favors this idea. Use the normal distribution to calculate the probability that at least half of the sample are in favor.
questionthe proportion of a companys earnings paid out to its shareholders in the form of dividends is called the
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