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More on the distribution of the t statistic. Repeat the previous exercise for the two situations where the alternative is one-sided.
ExerciseDistribution of the t statistic. Assume that you have a sample of size n = 18. Draw a picture of the distribution of the t statistic under the null hypothesis. Use Table D and your picture to illustrate the values of the test statistic that would lead to rejection of the null hypothesis at the 5% level for a two-sided alternative.
A college accepted 512 of the 1,600 applicants one year, and 520 of the 1,300 applicants the next year. Can we conclude that the admissions rate was higher the second year than the first year?
Find out coefficient of correlation between variables. Interpret the value.
The amounts (in ounces) of juice in eight randomly selected juice bottles from a normally distributed population are given below. Construct a 95% confidence interval for the mean amount of juice in all such bottles. Round the confidence interval ..
Accounting procedures allow a business to evaluate their inventory at LIFO (Last In First Out) or FIFO (First In First Out). A manufacturer evaluated its finished goods inventory (in $ thousands) for five products both ways.
What I need are relevant questions for a survey questionnaire that will be valid for testing each of 3 hypotheses. Include the variables tested.
The lives of many people are affected by a fear that prevents them from flying. An institute for public opinion conducted a poll of 1014 adults, 48%of whom were men.
Determine the probability of choosing the area code at random which ends in the odd number if first digit cannot be 1 or 0?
in an integrative research review of an intervention s effectiveness which statement is true of an inclusion statement
in a random sample of males 23 write with their left hand and 217 do not. 65 females write with their left hand and 455
If Q is an orthogonal matrix, so that QTQ = I, prove that det Q equals +1 or -1. What kind of parallelepiped is formed from the rows (or columns) of an orthogonal matrix Q?
What are the limitations and assumptionbs of the t-test? What are some examples in your field (Nursing) for which you might use a t-test to compare a sample to the population and why?
The minimum height required for women to join the U.S. Army is 58 inches. What proportion of the population is excluded?
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