3. The amount of money spent weekly on cleaning, maintenance and repairs at a large restaurant...
3. The amount of money spent weekly on cleaning, maintenance and repairs at a large restaurant was observed over a long period of time to be approximately normally distributed with a mean of $625 and a standard deviation of $39. The amount of money spent weekly on cleaning, maintenance and repairs at a large restaurant was observed over a long period of time to be approximately normally distributed with a mean of $625 and a standard deviation of $39. If $646 is budgeted for next week, what is the probability that the actual costs will exceed the budget?
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3. The amount of money spent weekly on cleaning, maintenance and
repairs at a large restaurant...
The amount of money spent weekly on cleaning, maintenance, and repairs at a large restaurant was...
The amount of money spent weekly on cleaning, maintenance, and repairs at a large restaurant was observed over a long period of time to be approximately normally distributed, with mean μ = $617 and standard deviation σ = $42. (a) If $646 is budgeted for next week, what is the probability that the actual costs will exceed the budgeted amount? (Round your answer to four decimal places.) Incorrect: Your answer is incorrect. (b) How much should be budgeted for weekly...
7. The weekly amount spent for maintenance and repairs in a certain company approximates a normal...
7. The weekly amount spent for maintenance and repairs in a certain company approximates a normal distribution with a mean of Php19,739 and a standard deviation of Php916. If Php20,004.64 is budgeted to cover repairs for next week, what is the probability that the actual costs will exceed the budgeted amount?
The distribution of the amount of money spent by students on textbooks in a semester is...
The distribution of the amount of money spent by students on textbooks in a semester is approximately normal in shape with a mean of: μ= 480 and a standard deviation of: σ= 39. According to the standard deviation rule, almost 0.15% of the students spent more than what amount of money on textbooks in a semester?
The distribution of the amount of money spent by students on textbooks in a semester is...
The distribution of the amount of money spent by students on textbooks in a semester is approximately normal in shape with a mean of 452 and a standard deviation of 35. According to the standard deviation rule, approximately 68% of the students spent between $ and $ on textbooks in a semester.
The distribution of the amount of money spent by students on textbooks in a semester is...
The distribution of the amount of money spent by students on textbooks in a semester is approximately normal in shape with a mean of 391 and a standard deviation of 29. According to the standard deviation rule, approximately 95% of the students spent between $ and $ on textbooks in a semester.
The distribution of the amount of money spent by students on textbooks in a semester is...
The distribution of the amount of money spent by students on textbooks in a semester is approximately normal in shape with a mean of: μ = 487 and a standard deviation of: σ = 30. According to the standard deviation rule, almost 0.15% of the students spent more than what amount of money on textbooks in a semester?
3. A research firm found that the amount of money smokers spent on cigarettes follows a...
3. A research firm found that the amount of money smokers spent on cigarettes follows a normal distribution. The population standard deviation is $5. The research firm took a sample of 49 smokers and found that the sample mean is S20 Develop the 98% confidence interval for the population mean. IIO points] 6. A study of attendance at University of Alabama's basketball games revealed that the distribution of games is normally distributed with a mean of 10,000 and a standard...
Suppose X, the amount of money a student at a university spent on books in 2017,...
Suppose X, the amount of money a student at a university spent on books in 2017, was normally distributed with mean $550 and standard deviation $250 (that is, µ = 550 and σ = 250). Compute the probability that a randomly selected student at this university spent between $520 and $580 on books in 2017 (that is, compute P(520 ≤ X ≤ 580)). (Show work)
The amount of time adults spend watching television is closely monitored by firms because this helps...
The amount of time adults spend watching television is closely monitored by firms because this helps to determine advertising pricing for commercials. Complete parts (a) through (d). (a) Do you think the variable "weekly time spent watching television" would be normally distributed? If not, what shape would you expect the variable to have? A. The variable "weekly time spent watching television" is likely uniform, not normally distributed. B. The variable "weekly time spent watching television" is likely skewed right, not...
A random sample of 49 lunch customers was taken at a restaurant. The average amount of...
A random sample of 49 lunch customers was taken at a restaurant. The average amount of time the customers in the sample stayed in the restaurant was 45 minutes with a standard deviation of 14 minutes. a. Compute the standard error of the mean. b. Construct a 99% confidence interval for the true average amount of time customers spent in the restaurant. c. With a .99 probability, how large of a sample would have to be taken to provide a...
7. The weekly amount spent for maintenance and repairs in a certain company approximates a normal distribution with a mean of Php19,739 and a standard deviation of Php916. If Php20,004.64 is budgeted to cover repairs for next week, what is the probability that the actual costs will exceed the budgeted amount?
The distribution of the amount of money spent by students on textbooks in a semester is approximately normal in shape with a mean of 391 and a standard deviation of 29. According to the standard deviation rule, approximately 95% of the students spent between $ and $ on textbooks in a semester.
3. A research firm found that the amount of money smokers spent on cigarettes follows a normal distribution. The population standard deviation is $5. The research firm took a sample of 49 smokers and found that the sample mean is S20 Develop the 98% confidence interval for the population mean. IIO points] 6. A study of attendance at University of Alabama's basketball games revealed that the distribution of games is normally distributed with a mean of 10,000 and a standard...
The amount of time adults spend watching television is closely monitored by firms because this helps to determine advertising pricing for commercials. Complete parts (a) through (d). (a) Do you think the variable "weekly time spent watching television" would be normally distributed? If not, what shape would you expect the variable to have? A. The variable "weekly time spent watching television" is likely uniform, not normally distributed. B. The variable "weekly time spent watching television" is likely skewed right, not...
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