Average height in Canada is 160 centimeters with a standard deviation of 5. What percentage of...
Average height in Canada is 160 centimeters with a standard deviation of 5. What percentage of Canadians are shorter than 150 centimeters? (10 marks)
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height in Canada is 160 centimeters with a standard deviation of 5.
What percentage of...
Average height of men is normally distributed with mean height of 160 cm and standard deviation...
Average height of men is normally distributed with mean height of 160 cm and standard deviation of 5 cm. If a man is randomly selected from this population, find the probability that he is between 150 cm and 162 cm. Question 12 options: 0.0228 0.3422 0.6554 0.6326 0.850
Women in Belgium have a mean height of 168.1 centimeters with a standard deviation of 5.3...
Women in Belgium have a mean height of 168.1 centimeters with a standard deviation of 5.3 centimeters. Women in Turkey have a mean height of 156.4 centimeters with a standard deviation of 5.6 centimeters. a) Axelle Red is a famous Belgian singer who stands 165.1 centimeters. What is the Z-score for her height (please round to 2 decimal places)? b) Bengü Erden is a famous Turkish singer who stands 160.0 centimeters. What is the Z-score for her height (please round...
Adult men are, on average, 70 inches tall with a standard deviation of 4 inches. Adult...
Adult men are, on average, 70 inches tall with a standard deviation of 4 inches. Adult women are, on average, 64 inches tall with a standard deviation of 3 inches What percentage of women are taller than 60% of all men? What percentage of men are shorter than 40% of all women? What percentage of men are taller than 100% of all women? If a person is between 64 inches tall and 70 inches tall, what is the a) b)...
The average diameter of sand dollars on a certain island is 3.50 centimeters with a standard...
The average diameter of sand dollars on a certain island is 3.50 centimeters with a standard deviation of 1.00 centimeters. If 25 sand dollars are chosen at random for a collection, find the probability that the average diameter of those sand dollars is more than 3.28 centimeters. Assume that the variable is normally distributed.
If the standard deviation of $/euro percentage changes is 10% annualized, what is the appropriate standard...
If the standard deviation of $/euro percentage changes is 10% annualized, what is the appropriate standard deviation to use for assessing the risk on a 1-month investment? Assuming an expected percentage change of 6%/year (½%/month), what is the probability that the euro will appreciate more than 5% in 1 month?
The average height of females in a population of a certain college has been 162 centimeters...
The average height of females in a population of a certain college has been 162 centimeters with a population standard deviation of 7 centimeters. Is there a reason to believe that there has been a change in the average height if a random sample of 49 females in the present freshman class has an average height of 166 centimeters? Use a 0.01 level of significance. Answer each part separately. PART A: Is this a z test or t test? *...
According to FIFA, the average height of professional goal keepers is 71 inches, with a standard...
According to FIFA, the average height of professional goal keepers is 71 inches, with a standard deviation of 1.25 inches, and is normally distributed. Use this information to address the following: a. What is the probability a goal keeper is shorter than 70 inches? b. What is the probability a goal keeps is taller than 74 inches? c. What is the probability a goal keeper is between 69 and 73 inches? d. What goalie height is associated with the 75th...
26. Kona, a 15-year-old boy, is 72 inches tall. According to the CDC, the average height...
26. Kona, a 15-year-old boy, is 72 inches tall. According to the CDC, the average height for boys at this age is 67.00 inches with a standard deviation of 3.19 inches. a. Calculate Kona's z-score. b. What percentage of boys this age are shorter than Kona? c. What percentage of boys this age are as tall as or taller than Kona? d. If lan is in the 30m percentile for height, as a 15 year old boy, how tall is...
The following table shows the height of 60 peoples measured in cm. 4. (a) Height (cm Frequency 12...
The following table shows the height of 60 peoples measured in cm. 4. (a) Height (cm Frequency 12 131-140 141-150 151-160 161-170 171-180 19 10 Calculate the following:- i. The value of x. ii. Mean. ili. Standard deviation. (2 marks) (3 marks) (5 marks) (b) A factory produces washing machines. The probability that a washing machine produced is defective is 0.005. If 50 washing machines were selected randomly, find the probability that (2 marks) (4 marks) (c) The time taken...
1. There are 2.54 centimeters in an inch, so you are converting the units from inches...
1. There are 2.54 centimeters in an inch, so you are converting the units from inches to centimeters. The average height of a sample of basketball players is 6 feet, 2 inches or 74 inches. The standard deviation of this sample of players is 2.8 inches. If each person's height were to be multiplied by 2.54 to be height in centimeters, what would be the resulting sample variance of the height in centimeters? 2. The heights (at the shoulders) of...
Women in Belgium have a mean height of 168.1 centimeters with a standard deviation of 5.3 centimeters. Women in Turkey have a mean height of 156.4 centimeters with a standard deviation of 5.6 centimeters. a) Axelle Red is a famous Belgian singer who stands 165.1 centimeters. What is the Z-score for her height (please round to 2 decimal places)? b) Bengü Erden is a famous Turkish singer who stands 160.0 centimeters. What is the Z-score for her height (please round...
Adult men are, on average, 70 inches tall with a standard deviation of 4 inches. Adult women are, on average, 64 inches tall with a standard deviation of 3 inches What percentage of women are taller than 60% of all men? What percentage of men are shorter than 40% of all women? What percentage of men are taller than 100% of all women? If a person is between 64 inches tall and 70 inches tall, what is the a) b)...
The average height of females in a population of a certain college has been 162 centimeters with a population standard deviation of 7 centimeters. Is there a reason to believe that there has been a change in the average height if a random sample of 49 females in the present freshman class has an average height of 166 centimeters? Use a 0.01 level of significance. Answer each part separately. PART A: Is this a z test or t test? *...
26. Kona, a 15-year-old boy, is 72 inches tall. According to the CDC, the average height for boys at this age is 67.00 inches with a standard deviation of 3.19 inches. a. Calculate Kona's z-score. b. What percentage of boys this age are shorter than Kona? c. What percentage of boys this age are as tall as or taller than Kona? d. If lan is in the 30m percentile for height, as a 15 year old boy, how tall is...
The following table shows the height of 60 peoples measured in cm. 4. (a) Height (cm Frequency 12 131-140 141-150 151-160 161-170 171-180 19 10 Calculate the following:- i. The value of x. ii. Mean. ili. Standard deviation. (2 marks) (3 marks) (5 marks) (b) A factory produces washing machines. The probability that a washing machine produced is defective is 0.005. If 50 washing machines were selected randomly, find the probability that (2 marks) (4 marks) (c) The time taken...
1. There are 2.54 centimeters in an inch, so you are converting the units from inches to centimeters. The average height of a sample of basketball players is 6 feet, 2 inches or 74 inches. The standard deviation of this sample of players is 2.8 inches. If each person's height were to be multiplied by 2.54 to be height in centimeters, what would be the resulting sample variance of the height in centimeters? 2. The heights (at the shoulders) of...
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