The distribution of the number of viewers for the American Idol television show follows a normal distribution with a mean of 34 million and a standard deviation of 10 million. Use Appendix B.3.
What is the probability next week's show will:
Have between 38 and 42 million viewers?
Have at least 29 million viewers?
Exceed 54 million viewers?
The distribution of the number of viewers for the American Idol television show follows a normal...
The number of viewers of American Idol has a mean of 33 million with a standard deviation of 10 million. Assume this distribution follows a normal distribution. What is the probability that next week's show will: a) Have between 37 and 44 million viewers? (Round z-score computation to 2 decimal places and your final answer to 4 decimal places.) (b) Have at least 29 million viewers? (Round z-score computation to 2 decimal places and your final answer to 4 decimal...
Question 17 1 pts The distribution of the number of viewers for the Northeast Football television broadcasts follows the normal distribution with a mean of 10 million and a standard deviation of 2 million. The upper 12% of the market consist of how many viewers? 12 million 0.3800 million 12.36 million 1.18 million
Example (exercise 35 P167) The reboot time for a machine follows a normal distribution with mean value of 8.46 min, and standard deviation 0.913 mins. 1. What is the probability the reboot time are at least 10 mins? exceed 10 mins? 2. What is the probability the reboot time are between 8 and 10 mins, inclusive? 3. Find C, such that 98% of reboot time are in the interval (8.46 - c, 8.46 + c)? 4. If four reboot time...
John knows that monthly demand for his product follows a normal distribution with a mean of 2,500 units and a standard deviation of 425 units. Given this, please provide the following answers for John. a. What is the probability that in a given month demand is less than 3,000 units? b. What is the probability that in a given month demand is greater than 2,200 units? c. What is the probability that in a given month demand is between 2,200...
John knows that monthly demand for his product follows a normal distribution with a mean of 2,500 units and a standard deviation of 425 units. Given this, please provide the following answers for John. a. What is the probability that in a given month demand is less than 3,000 units? b. What is the probability that in a given month demand is greater than 2,200 units? c. What is the probability that in a given month demand is between 2,200...
1) Given a standard normal distribution, find the probability of having a z score higher than 1.67 ```{r} ``` 2) Given that test scores for a class are normally distributed with a mean of 80 and variance 36, find the probability that a test score is lower than a 45. ```{r} ``` 3) Given a standard normal distribution, find the Z score associated with a probability of .888 ```{r} ``` 4) Find the Z score associated with the 33rd quantile...
1. Suppose the number of cracks along a 100 km pipeline follows a normal distribution with Il = 25 and o = 5: • What is the probability that the number of cracks will be at least 30? Will exceed 30 min? (2+1=3 pts) What value c is such that the interval (25 - 0,25 + c) includes 98% of all cracks?! (1+2-3 pts) [Hint: Draw a standard normal curve, think about the meaning of area under the curve, the...
The net weekly sales for a small business follows a normal distribution with a mean of 586 dollars and standard deviation of 115 dollars. Calculate each of the following. In each case, round your response to at least 4 decimal places. a) What is the probability that in a randomly selected day, the business will do no more than 604 dollars in net sales? b) Suppose 18 days are randomly selected. What is the probability that the average net sales...
6.) The temperature of coffee sold at the Coffee Bean Cafe follows the normal probability distribution, with a mean of 150 degrees. The standard deviation of this distribution is 5 degrees. a) What is the probability that the coffee temperature is between 150 degrees and 154 degrees? b) What is the probability that the coffee temperature is more than 164 degrees? Please show work using Excel.
2) Suppose the weight of a newborn baby follows a normal distribution with a mean of 3500 grams and a standard deviation of 600 grams. a. What is the probability that the weight of a randomly selected newborn exceeds 4000g? b. For a random sample of 36 newborns, what is the probability that their mean weight is less than 3450g? 3) Suppose that 5% of American adults are vegetarian. Find the probability that in a random sample of 500 American...