please give right decimal places
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please give right decimal places
The average number of moves a person makes in his or...
The average lifetime of smoke detectors that a company manufactures is 5 years, or 60 months,...
The average lifetime of smoke detectors that a company manufactures is 5 years, or 60 months, and the standard deviation is 6 months. Find the probability that a random sample of 35 smoke detectors will have a mean lifetime between 59 and 62 months. Assume that the sample is taken from a large population and the correction factor can be ignored. Round the final answer to four decimal places and intermediate z-value calculations to two decimal places P (59 <...
The national average SAT score (for verbal and math) is 1028. Suppose that nothing is known...
The national average SAT score (for verbal and math) is 1028. Suppose that nothing is known about the shape of the distribution and that the standard deviation is 100. Round the final answer to four decimal places and intermediate z-value calculations to two decimal places Source: New York Times Almanac. Part 1 out of 2 If a random sample of 245 scores was selected, find the probability that the sample mean is greater than 1041. Assume that the sample is...
Life of Smoke Detectors The average lifetime of smoke detectors that a company manufactures is 5...
Life of Smoke Detectors The average lifetime of smoke detectors that a company manufactures is 5 years or months, and the standard deviation is 7 months. Find the probability that a random sample of 29 smoke detectors will have a mean lifetime between 56 and 63 months. Assume that the sample is taken from a large population and the correction factor can be ignored. Round the final answer to at least four decimal places and intermediate z-value calculations to two...
Life of Smoke Detectors The average lifetime of smoke detectors that a company manufactures is 5...
Life of Smoke Detectors The average lifetime of smoke detectors that a company manufactures is 5 years or months, and the standard deviation is 7 months. Find the probability that a random sample of 29 smoke detectors will have a mean lifetime between 56 and 63 months. Assume that the sample is taken from a large population and the correction factor can be ignored. Round the final answer to at least four decimal places and intermediate z-value calculations to two...
Cell Phone Lifetimes A recent study of the lifetimes of cell phones found the average is...
Cell Phone Lifetimes A recent study of the lifetimes of cell phones found the average is 24.3 months. The standard deviation is 2.6 months. If a company provides its 32 employees with a cell phone, find the probability that the mean lifetime of these phones will be less than 23.7 months. Assume cell phone life is a normally distributed variable, the sample is taken from a large population and the correction factor can be ignored. Round the final answer to...
A survey found that the American family generates an average of 17.2 pounds of glass garbage...
A survey found that the American family generates an average of 17.2 pounds of glass garbage each year. Assume the standard deviation of the distribution is 2.5 pounds. Find the probability that the mean of a sample of 51 families will be between 16.7 and 17.7 pounds. Assume that the sample is taken from a large population and the correction factor can be ignored. Round your final answer to four decimal places and intermediate z-value calculations to two decimal places...
Question 11 of 13 (1 point) Attempt 1 of Unlimited 6.3 Section Exercise Life of Smoke...
Question 11 of 13 (1 point) Attempt 1 of Unlimited 6.3 Section Exercise Life of Smoke Detectors The average lifetime of smoke detectors that a company manufactures is 5 years, or 60 months, and the standard deviation is 7 months. Find the probability that a random sample of 27 smoke detectors will have a mean lifetime between 58 and 62 months. Assume that the sample is taken from a large population and the correction factor can be ignored. Round the...
A survey found that the American family generates an average of 17.2 pounds of glass garbage...
A survey found that the American family generates an average of 17.2 pounds of glass garbage each year. Assume the standard deviation of the distribution is 2.5 pounds. Find the probability that the mean of a sample of 42 families will be between 18 and 19 pounds. Assume that the sample is taken from a large population and the correction factor can be ignored. Use a graphing calculator and round the answer to four decimal places. Source: Michael D. Shook...
A survey found that the American family generates an average of 17.2 pounds of glass garbage...
A survey found that the American family generates an average of 17.2 pounds of glass garbage each year. Assume the standard deviation of the distribution is 2.5 pounds. Find the probability that the mean of a sample of 57 families will be between 17.3 and 18.3 pounds. Assume that the sample is taken from a large population and the correction factor can be ignored. Round your final answer to four decimal places and intermediatez-value calculations to two decimal places. G...
A survey found that the American family generates an average of 17.2 pounds of glass garbage...
A survey found that the American family generates an average of 17.2 pounds of glass garbage each year. Assume the standard deviation of the distribution is 2.5 pounds. Find the probability that the mean of a sample of 43 families will be between 16.7 and 17.7 pounds. Assume that the sample is taken from a large population and the correction factor can be ignored. Round your final answer to four decimal places and intermediate -value calculations to two decimal places.
The average lifetime of smoke detectors that a company manufactures is 5 years, or 60 months, and the standard deviation is 6 months. Find the probability that a random sample of 35 smoke detectors will have a mean lifetime between 59 and 62 months. Assume that the sample is taken from a large population and the correction factor can be ignored. Round the final answer to four decimal places and intermediate z-value calculations to two decimal places P (59 <...
The national average SAT score (for verbal and math) is 1028. Suppose that nothing is known about the shape of the distribution and that the standard deviation is 100. Round the final answer to four decimal places and intermediate z-value calculations to two decimal places Source: New York Times Almanac. Part 1 out of 2 If a random sample of 245 scores was selected, find the probability that the sample mean is greater than 1041. Assume that the sample is...
A survey found that the American family generates an average of 17.2 pounds of glass garbage each year. Assume the standard deviation of the distribution is 2.5 pounds. Find the probability that the mean of a sample of 51 families will be between 16.7 and 17.7 pounds. Assume that the sample is taken from a large population and the correction factor can be ignored. Round your final answer to four decimal places and intermediate z-value calculations to two decimal places...
Question 11 of 13 (1 point) Attempt 1 of Unlimited 6.3 Section Exercise Life of Smoke Detectors The average lifetime of smoke detectors that a company manufactures is 5 years, or 60 months, and the standard deviation is 7 months. Find the probability that a random sample of 27 smoke detectors will have a mean lifetime between 58 and 62 months. Assume that the sample is taken from a large population and the correction factor can be ignored. Round the...
A survey found that the American family generates an average of 17.2 pounds of glass garbage each year. Assume the standard deviation of the distribution is 2.5 pounds. Find the probability that the mean of a sample of 42 families will be between 18 and 19 pounds. Assume that the sample is taken from a large population and the correction factor can be ignored. Use a graphing calculator and round the answer to four decimal places. Source: Michael D. Shook...
A survey found that the American family generates an average of 17.2 pounds of glass garbage each year. Assume the standard deviation of the distribution is 2.5 pounds. Find the probability that the mean of a sample of 57 families will be between 17.3 and 18.3 pounds. Assume that the sample is taken from a large population and the correction factor can be ignored. Round your final answer to four decimal places and intermediatez-value calculations to two decimal places. G...
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