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Assume that results of survey were used to create seperate 99% confidence intervals for boys and girls. would the margins of error be same as, larger , or smaller than that for question one?
What is the level of measurement for the variable, "political ideology" measured as "Very Conservative", "Conservative","Moderate", "Liberal" and "Very Liberal".
A bank asks customers to evaluate the drive-through service as good, average, or poor. Which level of measurement does this classification illustrate?
The average thickness of books on a library shelf is 8.3 centimeters.the standard deviation is 0.6 centimeter. If 20% of the books are oversied, find the minimum thickness of the oversized books on the library shelf.
Event A occurs with probability 0.2. Event B occurs with probability 0.3. Event C occurs with probability 0.4. If A, B, and C are disjoint, then
You're considering investing in a portfolio of the common stocks of four publicly-traded companies with betas as follows:
A post office has a single line for customers waiting for the next available postal clerk. There are two postal clerks who work at the same rate.
As a condition of employment, Fashion Industries applicants must pass a drug test. Of the last 220 applicants 14 failed the test. Develop a 99 percent confidence interval for the proportion of applicants that fail the test. Would it be reasonable ..
Using the raw measurement data presented below, calculate the t value for independent groups to determine whether or not there exists a statistically significant difference between the salaries of female and male human resource managers.
To findout 95 percent with confidence interval for the mean amount a citation. Police Chief Aaron Ard of River City reports 500 traffic citations were issued last month.
Test whether there is difference in the two population mean. Use p-value approach
You roll two fair dice, one red and one green. What is the probability of getting a number less than 5 on both?
Final scores averaged 66 for the treatment group; the SD was 21. For the control group, the figures were 59 and 20. What do you conclude?
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