Search & Filtering
1. A radioactive particle is randomly located in a square area with sides that are 1 unit in length. Let X and Y denote the coordinates of the particle. Because the particle is equally likely to fall in any subarea of fixed size, a reasonable model of (X , Y ) is given by
a. Find the mean of X.
b. Find the mean of Y.
c. Find the covariance between X and Y.
d. Find the correlation between X and Y.
Read and analyze the given problem. Provide a complete solution, Table, and a graph corresponds to the answer.
4. The mean score of the first periodic exam in Statistics is 89 and the standard deviation is 12. One student believed that the mean was less than this, she then randomly selected 34 students and computed their mean score. She obtained that the mean score of 85 at 99% confidence. Test the student belief. Use both method to evaluate
Read and analyze the given problem. Provide a complete solution, Table, and a graph corresponds to the answer.
According to last year’s report, a filipino household spends an average of P400/day for food. Suppose you took a sample of 25 households. You determined how much each household spent for the food daily and the results revealed a mean of P380 and a standard deviation of P21.50. with 99% confidence what would be your conclusion
Due to ASF issue it was aired that the average price of a kilo of pork in MM is P195.00. However, a sample of 15 prices randomly collected from different markets in MM showed an average of P200.00 and with standard deviation of P9.50. using 0.05 significant level. What would be your conclusion for the price of pork in MM.
Read and analyze the given problem. Provide a complete solution, Table, and a graph corresponds to the answer.
According to last year’s report, a filipino household spends an average of P400/day for food. Suppose you took a sample of 25 households. You determined how much each household spent for the food daily and the results revealed a mean of P380 and a standard deviation of P21.50. with 99% confidence what would be your conclusion
Due to ASF issue it was aired that the average price of a kilo of pork in MM is P195.00. However, a sample of 15 prices randomly collected from different markets in MM showed an average of P200.00 and with standard deviation of P9.50. using 0.05 significant level. What would be your conclusion for the price of pork in MM.
Read and analyze the given problem. Provide a complete solution, Table, and a graph corresponds to the answer.
4. The mean score of the first periodic exam in Statistics is 89 and the standard deviation is 12. One student believed that the mean was less than this, she then randomly selected 34 students and computed their mean score. She obtained that the mean score of 85 at 99% confidence. Test the student belief. Use both method to evaluate
Read and analyze the given problem. Provide a complete solution, Table, and a graph corresponds to the answer.
Due to ASF issue it was aired that the average price of a kilo of pork in MM is P195.00. However, a sample of 15 prices randomly collected from different markets in MM showed an average of P200.00 and with standard deviation of P9.50. using 0.05 significant level. What would be your conclusion for the price of pork in MM.
Read and analyze the given problem. Provide a complete solution, Table, and a graph corresponds to the answer.
According to last year’s report, a filipino household spends an average of P400/day for food. Suppose you took a sample of 25 households. You determined how much each household spent for the food daily and the results revealed a mean of P380 and a standard deviation of P21.50. with 99% confidence what would be your conclusion
Read and analyze the given problem. Provide a complete solution, Table, and a graph corresponds to the answer.
The owner of a mobile phone store in Greenhills shopping center was not happy when he learned that the average number of cellphones sold daily was 8 items only. He hired a new seller and was told to tally the daily sales for 20 days. The new sale records are 9, 9, 9, 8, 9, 9, 11, 12, 12, 16, 10, 12, 8, 11, 17, 18, 15, 14, 17, and 14. by using the default significant level do the collected data enough to indicate that their sale got increased?
In a survey of men in the United
States (ages 20-29), the mean height was 69.6 inches with a standard deviation of 3.0 inches. Find the minimum height in the top 16%.
b. If this experiment is repeated, with replacement, what is the probability that both parts are defective?
iii) The U.S. Energy Department states that 60% of all U.S. households have ceiling fans. In addition, 29% of all U.S. households have an outdoor grill. Suppose 13% of all U.S. households have both a ceiling fan and an outdoor grill. A U.S. household is randomly selected.
a. What is the probability that the household has a ceiling fan or an outdoor grill?
b. What is the probability that the household has neither a ceiling fan nor an outdoor grill?
c. What is the probability that the household does not have a ceiling fan and does have an outdoor grill?
d. What is the probability that the household does have a ceiling fan and does not have an outdoor grill?
