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The amount of time it takes to complete a final examination is negatively skewed distribution with a mean of 70 minutes and a standard deviation of 8 minutes. If 64 students were randomly sampled, the probability that the sample mean of the sampled students exceeds 73.5 minutes is approximately 0.
For each of following data sets, select the most suitable response from choices below the table. A strong negative linear relation exists.
For the samples summarized below, test the hypothesis at ∞ =.05 that the two variances are equal. Variance Number of data values Sample 1 19 8 Sample 2 9 18
When the p-value is used for hypothesis testing, the null hypothesis is rejected if
Find the value of q-hat from proportion and degrees of freedom used to find the t-score.
Using a 5% level of significance, is there any difference in proportion of guests who would select the two resorts? What is your conclusion?
Find the margin of error for the 95% confidence interval used to estimate the population proportion.
What extremely important characteristic of the data set is not considered in the hypothesis test?
Explain your findings (including the logic of comparing within-group to between-group population variance estimates, how each of these is figured, and the F distribution).
Conduct an analysis of variance
Assume P1 and P2 move simultaneously. Represent this game in normal form.
Graph the information using a histogram and a scatter plot in Excel as well. How does seeing the information in a graphical format provide more information?
Test the hypotheses that the average household income in the township is greater than $100,000. Hint: Start by stating the null and alternative hypotheses.
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