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Why rent seeking bad for economy
a coffe manufacturer is interested in whether the mean daily consumption of regular coffee drinkers decaffeinated coffee . a random sample of 50 regular coffee drinkers showed a mean of 4.35 cups per day . a sample of 40 decaffeinated coffee drinkers showed a mean of 5.84 cups a day. use the .01 significance level. compute the p-value .
The manager of a local gym has determined that the length of time patrons spend at the gym is a normally distributed variable with a mean of 80 minutes and a standard deviation of 20 minutes.
What proportion of patrons spend more than two hours at the gym?
Q: The manager of a local gym has determined that the length of time patrons spend at the gym is a normally distributed variable with a mean of 80 minutes and a standard deviation of 20 minutes.
a)What proportion of patrons spend more than two hours at the gym?
b)What proportion of patrons spend less than one hour at the gym?
c)What is the least amount of time spent by 60% of patrons at the gym?
B(3.00m,0m).what is the displacement in unit vector form
1. The teacher would like to find out if there is significant difference in the performance of the male and female students in 35 item test in English. He wants to consider 0.5% level of significance. The result is shown below:
MALE STUDENTS
sample size = 8
sample mean = 24.27
standard deviation = 9.36
FEMALE STUDENTS
sample size = 7
sample mean = 21.07
standard deviation = 8.25
Given r1=3mi+4mj.dertemine the magnitude and direction angles of the position vector
in the game of bridge each of 4 players is dealt 13 cars from an ordinary well-shuffled deck of 52 cards. Find the probability that one of the players gets a) 7 diamonds, 2 clubs, 3 hearts, and one spade, b) a complete suit, c) 9 cards are of one suit
Given the following situations, write A, if it is two-tailed, B if one-tailed (left-
tailed), and C if one-tailed (right-tailed). (10 points)
1. Research on processed foods lessens the life span of a person.
2. A government official claims that the dropout rate for local schools is 25%.
3. A civil engineer is trying to prove that his new method of laying blocks is more
effective than the traditional method.
4. A new stockbroker, named XYZ, claims that their brokerage fees are lower than
that of the current fee.
5. A government official claims that the dropout rate for local schools is 25%.
Given the following situations, write A, if it is two-tailed, B if one-tailed (left-tailed), and C if one-tailed (right-tailed). (10 points)
1. A mother wants to prove that listening to classical music improves children's thinking process.
2. The principal of a certain school claims that the dropout rate for the certain municipality is higher than 25%.
3. Research on whether computer aided instruction is the same as lecture method
of a lesson presentation.
4. Research on smoking lessens the life span of a person.
5. Determine whether the mean monthly salary of call center agents is 25,000 a
month.
#340153 on Dec 2023