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What is the critical value for a left-tailed z-test at the 1% level of significance?
The one-sample t statistic has the value t = -1.68. What do we know about the P -value of this test?
of the first 10000 votes cast in an election 5180 were for candidate a. find a 95 confidence interval for the fraction
How do you set up SPSS to find descriptives for the perceived learning variable for each gender?
Assume that x has a normal distribution, with the specified mean and standard deviation. Find the indicated probabilities.
FBI Report do greater universities that tend to have more property crime. Keep a scatter diagram also sketch the line you think best fits the data.
if 20 of the residents in a u.s. city prefer a white telephone over any other color available what is the probability
The mean interview time for a standard questionnaire of 31.3 minutes was considered to be excessive so the schedule was revised, yielding a mean interview time for a sample of 40 subjects of 21.3 minutes
A random sample of 5 parks is selected and the number of acres is shown at alpha= 0.05, find the critical value. 944, 1036, 790, 5842,566
the data set you need to do the assignment can be found on blackboard in the folder assignments and due dates and in
researchers found a correlation coefficient of r .50 on personality measures for identical twins. a reporter
If the annual advertising expenditures are known to be normally distributed and the standard deviation of the population (σ) is $750, what would be the 95% confidence interval for the true mean advertising expense?
suppose that a standardized test has a mean of 250 and standard recitation of 80. if the test is normaaly distributed
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