The average price of a tablet is $275 with a standard deviation of $24. You asked a random group of 16 persons about the price of their tablet. What is the probability that the average price of the table for this group is between $265 and 290?
The average price of a tablet is $275 with a standard deviation of $24. You asked...
The average price of a college math textbook is $162 and the standard deviation is $24. Suppose that 50 textbooks are randomly chosen. Round all answers to 4 decimal places where possible. a. What is the distribution of T?T-N b. For the group of 50, find the probability that the average price is between $165 and $167. (round to c. Find the first quartile for the average textbook price for this sample size. $ the nearest cent) d. For part...
The average score on an exam was reported as 61% with a standard deviation of 16%. You may assume exam scores are normally distributed. If I select 10 people at random, what is the probability that the average of their scores would be … (A) …more than 50%? (B) …between 70% and 85%?
You know that a random variable has a normal distribution with standard deviation of 16. After 10 draws, the average is -12. What is the standard error of the average estimate? If the true mean were -11, what is the probability that we could observe a value between -10.5 and -11.5? You know that a random variable has a normal distribution with standard deviation of 25. After 10 draws, the average is -10. a. What is the standard error of...
The average price of a college math textbook is $172 and the standard deviation is $29. Suppose that 8 textbooks are randomly chosen. Round all answers to 4 decimal places where possible. a. What is the distribution of a? -N( 172 ,29 b. For the group of 8, find the probability that the average price is between $174 and $184.1330 c. Find the third quartile for the average textbook price for this sample size. S 191.56 * (round to the...
The average price of a college math textbook is $161 and the standard deviation is $28. Suppose that 17 textbooks are randomly chosen. Round all answers to 4 decimal places where possible. What is the distribution of ¯xx¯? ¯xx¯ ~ N( ___ , ___ ) For the group of 17, find the probability that the average price is between $168 and $173. _____ Find the third quartile for the average textbook price for this sample size. $ _____ (round to...
The average price of a college math textbook is $175 and the standard deviation is $27. Suppose that 15 textbooks are randomly chosen. Round all answers to 4 decimal places where possible. a. What is the distribution of x? - NI b. For the group of 15, find the probability that the average price is between $171 and $177. c. Find the first quartile for the average textbook price for this sample size. S (round to the nearest cent) d....
A normal population has a mean of 64 and a standard deviation of 24. You select a random sample of 32. Use Appendix B.1 for the z-values. Compute the probability that the sample mean is: (Round the final answers to 4 decimal places.) a. Greater than 67. Probability b. Less than 60. Probability c. Between 60 and 67. Probability
The Average sales price of single-family houses in Charlotte is $210,000 with a standard deviation of $35,000. A random sample of 49 single-family houses in Charlotte is selected. Let x bar represent the mean sales price of the sample. 1. Find the mean and standard deviation of x bar ,i.e, u x bar and o x bar . 2. What is the probability that the sample mean sales price x bar is more than $220,000?
A tech company’s average daily stock price last year was $38.12, with a standard deviation of $2.45. If a random selection of 32 days were chosen from last year, what is the probability that the average price of the company’s stock for those 32 days is more than $37.00? Multiple Choice 0.9295 0.9529 0.9952 0.9259
The average ticket price for a Spring Training baseball game is $29.79, with a standard deviation of $7.29. In a random sample of 40 Spring Training tickets, find the probability that the mean ticket price exceeds $32. (Round your answer to three decimal places)