If the average of our sales is 10 per month and the standard deviation is 10 how much inventory would we need to ship 95% complete and on time?
If our sales are 10 per month and we want to ship 99.7% complete and on time and our standard deviation is 5 how much inventory would be need?
If the average of our sales is 10 per month and the standard deviation is 10...
The average return of Intermediate-term government bonds is 5.4% per year and the standard deviation is 3.2%. What range of returns would you expect to see 68 percent of the time for Intermediate-term government bonds? What about 99.7 percent of the time?
A data distribution has a mean of 10 and a standard deviation of 1. Suppose we do not know if the distribution is bell-shaped or not. Estimate the proportion of data that falls between 9 and 11. A. Cannot be determined B. 95% C. 99.7% D. 68%
In a factory the daily average production is 146 units, with a standard deviation of 10 units, following an unknown distribution. How much total production can we guarantee for 40 days with a 0.90 probability? Probability statement used is . The value from the table is . The total production is and the average daily production is .
On average, American's watch 10 complete baseball games per season, with a standard deviation of 15 games. What is the probability that a sample of 100 Americans watch an average of 12 games or more?
A population is estimated to have a standard deviation of 10. We want to estimate the population mean within 2, with a 95% level of confidence. How large a sample is required? a. 98 b. 97 c. 96 d. 95
Cats live for 14 years on average, with a standard deviation of 2 years. A simple random sample of 78 recently deceased cats is selected, and the sample mean age at death of these cats is computed. We know that the random variable has an approximately Normal distribution because of a. the law of large numbers. b. the fact that probability is the long-run proportion of times an event occurs. c. the 68–95–99.7 rule. d. the central limit theorem
An investment is expected to generate an average return of 10% with a standard deviation of 5%. With 95% confidence level, the actual rate of return will fall between: A. -5% to 25%. B. -10% to 30%. C. 0% to 20%. D. 5% to 15%.
A recent national survey found that parents read an average (mean) of 10 books per month to their children under five years old. The population standard deviation is 5. The distribution of books read per month follows the normal distribution. A random sample of 25 households revealed that the mean number of books read last month was 12. At the .01 significance level, can we conclude that parents read more than the average number of books to their children?
An investment is expected to generate an average return of 10% with standard deviation of 5%. With 95% confidence level, the actual rate of return will fall between: A. 0% to 20%. B. 5% to 15%. C. -10% to 30%. D. -5% to 25%.
Sunny Side Up has an average demand of 12,000 eggs per week with a standard deviation of 3,000 eggs. The average lead time is 5 weeks. The holding cost is $1/egg and the ordering cost is $50/order. What is the reorder point if z=1.65 (same as a 95% service level)? between 60,000 and 69,999 greater than 100,000 between 70,000 and 79,999 between 80,000 and 99,999