. The monthly expenditure of a family was observed to be normally distributed with mean ofGhc400 and standard deviation of Ghc20. If Ghc450 is budgeted for a month, what is theprobability that the actual expenditure will a. be less than the budgeted amount? b. exceed the budgeted amount?
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?. The monthly expenditure of a family was observed to be
a. be less than the budgeted amount?
b. exceed the budgeted amount?
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- A survey found that women's heights are normally distributed with mean 62.8 in. and standard deviation 2.2 in. The survey also found that men's heights are normally distributed with mean 69.5 in. and standard deviation 3.2 in. Most of the live characters employed at an amusement park have height requirements of a minimum of 56 in. and a maximum of 63 in. Complete parts (a) and (b) below. a. Find the percentage of men meeting the height requirement. What does the result suggest about the genders of the people who are employed as characters at the amusement park? The percentage of men who meet the height requirement is %. (Round to two decimal places as needed.)A survey found that women's heights are normally distributed with mean 62.1 in. and standard deviation 3.3 in. The survey also found that men's heights are normally distributed with mean 67.9 in. and standard deviation 3.4 in. Most of the live characters employed at an amusement park have height requirements of a minimum of 55 in. and a maximum of 62in. Complete parts (a) and (b) below. a. Find the percentage of men meeting the height requirement. What does the result suggest about the genders of the people who are employed as characters at the amusement park? The percentage of men who meet the height requirement is nothing %.Exam 1 scores have a mean of 500and a standard deviation of 110, while exam 2 scores have a mean of 20 and a standard deviation of 3. Assuming both types of scores have distributions that are unimodal and symmetric, which is more unusual: an exam 1 score of 790 or an exam 2 score of 28? A. The exam 2 score is more unusual. B. The exam 1 score is more unusual. C. They are the same. D. It cannot be determined which exam score is more unusual
- . Ghana Rice Company. (GRC) sells rice to selected shops in Accra. GRC uses an automatic machine to fill the bags of rice. Weights of the bagged rice are approximately normally distributed with a mean of 75 kilograms and a standard deviation of 1.5 kilograms. a) GRC is unable to adjust the mean of the filling machine. However, it is able to adjust the standard deviation of the filling machine. What should be the standard deviation so that no more than 2% of all filled bags weigh more than 71.5 kilograms?The price-earnings (PE) ratios of a sample of stocks have a mean value of 12.75 and a standard deviation of 2.8. If the PE ratios have a bell shaped distribution, what percentage of PE ratios that fall between: A. 9.95 and 15.55. Percentage = %B. 7.15 and 18.35. Percentage = %C. 4.35 and 21.15. Percentage = %A survey found that women's heights are normally distributed with mean 62.8 in. and standard deviation 3.3 in. The survey also found that men's heights are normally distributed with mean 68.1 in. and standard deviation 3.5 in. Most of the live characters employed at an amusement park have height requirements of a minimum of 57 in. and a maximum of 62 in. Complete parts (a) and (b) below. a. Find the percentage of men meeting the height requirement. What does the result suggest about the genders of the people who are employed as characters at the amusement park? The percentage of men who meet the height requirement is %. (Round to two decimal places as needed.)
- A survey found that women's heights are normally distributed with mean 62.7 in. and standard deviation 2.6 in. The survey also found that men's heights are normally distributed with mean 68.4 in. and standard deviation 3.3 in. Most of the live characters employed at an amusement park have height requirements of a minimum of 56 in. and a maximum of 63 in. Complete parts (a) and (b) below. a. Find the percentage of men meeting the height requirement. What does the result suggest about the genders of the people who are employed as characters at the amusement park? The percentage of men who meet the height requirement is 5.08 %. (Round to two decimal places as needed.) Since most men do not meet the height requirement, it is likely that most of the characters are women. b. If the height requirements are changed to exclude only the tallest 50% of men and the shortest 5% of men, what are the new height requirements? The new height requirements are a minimum of in. and a maximum of (Round to…A survey found that women's heights are normally distributed with mean 62.3 in. and standard deviation 2.6 in. The survey also found that men's heights are normally distributed with mean 68.7 in. and standard deviation 3.4 in. Most of the live characters employed at an amusement park have height requirements of a minimum of 57 in. and a maximum of 64 in. Complete parts (a) and (b) below. a. Find the percentage of men meeting the height requirement. What does the result suggest about the genders of the people who are employed as characters at the amusement park? %. The percentage of men who meet the height requirement is (Round to two decimal places as needed.)The price-earnings (PE) ratios of a sample of stocks have a mean value of 12.75 and a standard deviation of 1. If the PE ratios have a bell shaped distribution, what percentage of PE ratios that fall between: A. 11.75 and 13.75. Percentage = %B. 10.75 and 14.75. Percentage = %C. 9.75 and 15.75. Percentage =
- A survey found that women's heights are normally distributed with mean 63.4 in. and standard deviation 3.9 in. The survey also found that men's heights are normally distributed with mean 69.1 in. and standard deviation 3.9 in. Most of the live characters employed at an amusement park have height requirements of a minimum of 57 in. and a maximum of 62 in. a. The percentage of men who meet the height requirement is %. (Round to two decimal places as needed.) b. If the height requirements are changed to exclude only the tallest 50% of men and the shortest 5% of men, what are the new height requirements? what is the new height requirements are a minimum of and a maximum of in. (Round to one decimal place as needed.)3. Based on a recent study, the pH level of the arterial cord (one vessel in the umbilical cord) is normally distributed with mean 7.23 and standard deviation of 0.11. Find the percentage of preterm infants who have the following arterial cord pH levels. a. pH levels between 7.00 and7.50. b. pH levels over 7.31.Ex. 4. The mean and standard deviation of the marks obtained by 1000 students in an examination are respectively 34.5 and 16.5. Assuming the normality of the distribution, find the approxiamte number of students expected to obtain marks between 30 and 60.
