Example (exercise 35 P167) The reboot time for a machine follows a normal distribution with mean...
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 are randomly selected independently, what is the probability that at least one of them exceeds 10 mins?,
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Example (exercise 35 P167) The reboot time for a machine follows
a normal distribution with mean...
1. Suppose the number of cracks along a 100 km pipeline follows a normal distribution with...
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...
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...
2) Suppose the weight of a newborn baby follows a normal distribution with a mean of...
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...
Supposed that the mean body temperature for adults has a normal distribution with mean = 98.2F...
Supposed that the mean body temperature for adults has a normal distribution with mean = 98.2F and standard deviation = 0.8F. a. What is the probability that a randomly selected adult has a body temperature less than or equal to 98.6F? b. What is the probability that a randomly selected adult has a body temperature greater than 99.2F? c. What is the probability that a randomly selected adult has a body temperature between 97 and 98 degrees?
Ch 7.2: Distribution of the Sample Mean and the ROBLEMS INSTRUCTIONS 4-6 points n automatic machine...
Ch 7.2: Distribution of the Sample Mean and the ROBLEMS INSTRUCTIONS 4-6 points n automatic machine in a manufacturing process is operating properly if the lengths of an important subcomponent ae normally distributed with a mean of 117 cm and a standard deviation of 4.7 cm A. Find the probability that one selected subcomponent is longer than 119 cm. Probability B. Find the probability that if 3 subcomponents are randomly selected, their mean length exceeds 119 cm. Probability C. Find...
anner is normal with mean value wishes to establish a weight Problem 4 The weight distribution...
anner is normal with mean value wishes to establish a weight Problem 4 The weight distribution of parcels sent in a certain m 12 Ib and standard deviation 3.5 lb. The parcel service value C 17.76 ib beyond which there will be a surcharse will exceed Find the probabiliy that the weight of a randomly selecte 17.76 1b t least 2 o b) If 5 parcels are randomly selected, what is the probability that a them will be subject to...
The average time taken to complete an exam, X, follows a normal probability distribution with mean...
The average time taken to complete an exam, X, follows a normal probability distribution with mean = 60 minutes and standard deviation 30 minutes. What is the probability that a randomly chosen student will take more than 45 minutes to complete the exam?
Consider a normal distribution with mean 35 and standard deviation 5. What is the probability a...
Consider a normal distribution with mean 35 and standard deviation 5. What is the probability a value selected at random from this distribution is greater than 35? (Round your answer to two decimal places.
Claims filed under auto insurance policies follow a normal distribution with mean 19,400 and standard deviation...
Claims filed under auto insurance policies follow a normal distribution with mean 19,400 and standard deviation 5,000. What is the probability that the average of 25 randomly selected claims exceeds 20,000?
The average ACT score follows a normal distribution with a mean of 21.1 and a standard...
The average ACT score follows a normal distribution with a mean of 21.1 and a standard deviation of 5.1 what is the probability that the mean IQ score of 50 randomly selected people will be more than 23 ?
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...
Ch 7.2: Distribution of the Sample Mean and the ROBLEMS INSTRUCTIONS 4-6 points n automatic machine in a manufacturing process is operating properly if the lengths of an important subcomponent ae normally distributed with a mean of 117 cm and a standard deviation of 4.7 cm A. Find the probability that one selected subcomponent is longer than 119 cm. Probability B. Find the probability that if 3 subcomponents are randomly selected, their mean length exceeds 119 cm. Probability C. Find...
anner is normal with mean value wishes to establish a weight Problem 4 The weight distribution of parcels sent in a certain m 12 Ib and standard deviation 3.5 lb. The parcel service value C 17.76 ib beyond which there will be a surcharse will exceed Find the probabiliy that the weight of a randomly selecte 17.76 1b t least 2 o b) If 5 parcels are randomly selected, what is the probability that a them will be subject to...
Claims filed under auto insurance policies follow a normal distribution with mean 19,400 and standard deviation 5,000. What is the probability that the average of 25 randomly selected claims exceeds 20,000?
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