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In recent year, of the 109,857 arrest fro federal offenses, 29.1% were for drug offenses. Use a .01 significance level to test the claim that the drug offense rate is equal to 30%. What is the value of the test statistic?
What are the odds against drawing a card from an ordinary deck of cards and getting a spade?
Critically discuss the relationship between a sample and the type of population it is taken from? What population factors should be taken into consideration?
A sample of 25 concession stand purchases at the October 22 matinee of Bride of Chucky showed a mean purchase of $5.29 with a standard deviation of $3.02 for the October 26 evening showing of the same movie
Given the large difference between the two measures of central tendency, which of the two would you rely on in describing the average claim cost and why?
Same survey showed that average length of time each store was in bbusiness is 6 years, with standard deviation of 25 years. Which is more variable, number of magazines or number of years.
Two samples of sizes 25 and 35 are independently drawn from two normal populations, where the unknown population variances are assumed to be equal.
Data shows the average GPA of students at a school is 2.9. The GPA of a random sample of 16 biology students is 3.1 (with sample standard deviation= 1.2)
A United Nations report shows the mean family income for Mexican migrants to the U.S.. is $27,000 per year. A FLOC evaluation of a sample 25 Mexican families units reveals a mean to be $30,000 with a sample standard deviation of $10,000.
To determine whether two categorical variables are independent, one should use the:
In its third year, a football team averaged 16,050 fans per game, with a standard deviation of 2,500 fans. What is the probability that the number of fans at any given game was greater than 20,000?
We will select a random sample of 8 cigarettes and conduct a hypothesis test at the 10 % level of significance to determine whether the true mean nicotine content of all cigarettes differs from 8.4 mg.
Using an alpha of .05, what can you conclude about homogeneity of variance from the output? Word process your responses on the SPSS output pages.
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