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What is the major difference between finding significance and confidence intervals using population samples or using population proportions?
What is the probability of drawing two diamonds after discarding 5 and 7.
Can you conclude that information in article is untrue? Use 0.05 significance level. Find out p-value and explain its meaning.
We want to test the hypothesis that the population variances are equal.
Determine the probability of examining a sample mean weight from any 20 women chosen from this population that is less than S (your sample mean) by using population standard deviation?
A GSS asked. "What do you think is the ideal number of children for a family to have? the 497 female who responded had a median of 2, mean of 3.02 and standard deviation of 1.81 (a) Report the point estimate of the population mean.
Intersection of two mutually exclusive events: can be any value between 0 to 1, must always be equal to 1.
A sample of 30 students are tested (sample mean=58, standard error=3.2). Compute a 99 percent confidence interval based on this sample's data. How do these students compare to the national sample?
What is the probability that the mean price for a sample of 30 service stations is within $.03 of the population mean (to 4 decimals)?
The results for college x was a mean of 5 hours and an estimated population variance of 2 hours: for college y, m= 4, s 2 =1.5; and for college Z, M= 6, s 2 =2.5 what should you conclude? Use the .5 level.
The chi-square goodness of fit test can be used when we:
Now we would like to evaluate regression equation for X using Y as independent variable.
Confirm that these statements are accurate by finding the geometric mean rate of increase.
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