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Q1) Real estate agent in coastal area of Georgia wishes to compare variation in selling price of homes on oceanfront with those one to three blocks from ocean. Sample of 21 oceanfront homes sold within last year revealed standard deviation of selling prices was= $45,600. A sample of 18 homes, also sold within last year, that were one to three blocks from ocean revealed that standard deviation was= $21,330. At.01 significance level, can we conclude that there is more variation in selling prices of oceanfront homes?
High levels of glucose in the blood are indications of diabetes, which is becoming more prevalent in the United States. Diabetes can lead to many complications such as blindness and heart disease. A random sample of 180 individuals had their blood su..
Confirm that these statements are accurate by finding the geometric mean rate of increase.
How large should n be so that the standard deviation of is no more than 0.01 and sampling distribution
A bank's loan officer rates applicants for credit. The ratings can be described by a Normal model with a mean of 200 and a standard deviation of 50.
Statewide real estate sales agency, Farm Associates, specializes in selling farm property in state of Nebraska. At.10 significance level, has there been an increase in selling time?
Suppose population standard deviation for those drinking regular coffee is 1.20 cups per day and 1.36 cups per day for those drinking decaffeinated coffee.
Sales manager wishes to award sales representatives who earn the largest commissions a bonus of= $1,000 .He can award bonus to 20% of representatives. Determine cutoff point between those who earn bonus and those who don't?
A professor of math refutes the claim that the average student spends 3 hours studying for the midterm exam. Which hypothesis is used to test the claim?
What is the expected number of customers that will have to wait more than 6 hours?
It is better to use the median rather than the mean for a distribution when:
We have a deck of 52 playing cards. What is the probability of drawing?
Find the value for the correlation coefficient r.
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