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According to the Law School Admission Council, in the fall of 2006, 63% of law school applicants were accepted to some law school.4 The training program LSATisfaction claims that 163 of the 240 students trained in 2006 were admitted to law school. You can safely consider these trainees to be representative of the population of law school applicants. Has LSATisfaction demonstrated a real improvement over the national average?
a) What are the hypotheses?
b) Verify that the conditions are satisfied and find the P-value.
c) Would you recommend this program based on what you see here? Explain.
Find the confidence interval of the true proportion of students to receive a 3.0 GPA. Find the Z score, standard error, range, and your conclusion in a sentence.
Set up a null and alternative hypothesis to test whether this sample is falling below expectations.
A manager hopes to improve the sales figures for 10 employees by sending them to a motivational seminar. To test the effectiveness of this seminar
A student team examined parked cars in four different suburban shopping malls. One hundred vehicles were examined in each loation.
Let X equal the arrival time of the third elevator in Quiz 7.2. Find the exact value of P[W ≥ 60]. Compare your answer to the upper bounds derived in Quiz 7.2.
question a company hired 20 salespeople and gave them an initial sales skills examination test scores ranged from 68
The article "Three Sisters Give Birth on the Same Day" (Chance, Spring 2001, 23-25) used the fact that three Utah sisters had all given birth on March 11, 1998 as a basis for posing some interesting questions regarding birth coincidences.
Statistics 285: How to Create a Data Set and Formulate Research Questions. What is the topic of your data? Is it numeric - i.e. quantitative or narrative (ethnographic) - qualitative
A study was conducted to determine whether magnets were effective in treating pain. The valves represent pain measurements.
Suppose you compute a simple linear regression on a single sample. Then you find additional data and recompute the regression on the larger sample and that the result is an increase in the regression slope.
A food processor is concerned that the 16 oz. can of sliced pineapple is being overfilled. The quality control department took a random sample of 50 cans and found that the arithmatic mean weight was 16.05 oz.
give the coefficient of xk in the expansion of x 1x99 where k is an integer between 0 and 99 inclusive. give
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