The mean life of a television set is 138138 months with a variance of 324324.
If a sample of 8383 televisions is randomly selected, what is the probability that the sample mean would be less than 143.4143.4 months? Round your answer to four decimal places.
The mean life of a television set is 138138 months with a variance of 324324. If...
Save & End Certify Lesson: 9.3 The Distribution of the Sample... ANNIE PORTER - Question 5 of 13, Step 1 of 1 3/13 Correct The mean life of a television set is 121 months with a variance of 256. If a sample of 95 televisions is randomly selected, what is the probability that the sample mean would be less than 118.8 months? Round your answer to four decimal places Tables Keypad Answer How to enter your answer
A quality control expert at Glotech computers wants to test their new monitors. The production manager claims they have a mean life of 8383 months with a variance of 100100. If the claim is true, what is the probability that the mean monitor life would differ from the population mean by less than 1.71.7 months in a sample of 8989 monitors? Round your answer to four decimal places.
The mean lifetime of a tire is 41 months with a variance of 64. If 100 tires are sampled, what is the probability that the mean of the sample would be greater than 41.88 months? Round your answer to four decimal places.
The mean cost of a five pound bag of shrimp is 42 dollars with a variance of 49. If a sample of 54 bags of shrimp is randomly selected, what is the probability that the sample mean would differ from the true mean by less than 1.4 dollars? Round your answer to four decimal places.
The mean weight of an adult is 62 kg with the variance of 144. if 195 adults are randomly selected what is the probability that the sample mean would be less than 59.5 kg found your answer to four decimal places
The mean per capita income is 16,127 dollars per annum with a variance of 682.276 What is the probability that the sample mean would differ from the true mean by less than 104 answer to four decimal places. dollars if a sample of 476 persons is randomly selected? Round your Tables Answer How to enter your answer
The mean cost of a five pound bag of shrimp is 40 dollars with a variance of 36 . If a sample of 43 bags of shrimp is randomly selected, what is the probability that the sample mean would differ from the true mean by less than 2.5 dollars? Round your answer to four decimal places.
The quality control manager at a computer manufacturing company believes that the mean life of a computer is 105 months, with a variance of 81 If he is correct, what is the probability that the mean of a sample of 70 computers would differ from the population mean by less than 1.9 months? Round your answer to four decimal places.
The mean weight of an adult is 66 kilograms with a variance of 144 If 123 adults are randomly selected, what is the probability that the sample mean would be greater than 66.7 kilograms? Round your answer to four decimal places.
1) Suppose cattle in a large herd have a mean weight of 1169lbs and a variance of 17,161. What is the probability that the mean weight of the sample of cows would differ from the population mean by greater than 12lbs if 145 cows are sampled at random from the herd? Round your answer to four decimal places. 2) The mean lifetime of a tire is 36 months with a variance of 49. If 126 tires are sampled, what is...