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The loan officer rates applicants for credit. Ratings are normally distributed. The mean is 240 and the standard deviation is 60. If 49 applicants are randomly chosen, what is the probability that they will have a rating between 230 and 260? Round z scores to two decimal places.
The first step in this assignment is to provide SPSS with the Value Labels for the values in LOCALE97.
Category of decision rule which contains maximax decision rule is?
For each of the following statistical tests, state the null hypothesis and the two sided alternative hypothesis.
Given the following sample information, test the hypothesis that the treatment means are equal at the .05 significance level. Complete an ANOVA table. State your decision regarding the null hypothesis.
At the .05 significance level, is the number of units produced on the afternoon shift larger?
The city of Laguna Beach operates two public parking lots. The one on Ocean drive can accommodate upto 125 cars and the one on Rio Rancho can accommodate upto 130 cars.
What the information do z-scores give that actual heights do no?
21st Century Insurance Company claims that telephone calls for policy holder information are answered in at most 3 minutes. A random survey of 36 phone calls results in the mean 3.3311 and standard deviation 2.1788.
Use the table to determine whether the correlations are significant and how you would interpret the results. The correlation between speed and strength for 20 women is .567. Test these results at the .01 level using a one-tailed test.
For a candidate to win in a congressional district, he has to have won over half of the vote. The Republican candidate takes a poll to assess his chances in a two-candidate race.
Illustrated significant negative relationship between amount of homework assigned and student attitudes. Determine the explanatory variable and explain the response variable?
Determine the percentage increase in his real (inflation-adjusted) salary over the last three years. Which of the 4 methods of data collection was involved when he used the Consumer Price Index?
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