Find 54th percentile, P54, from the following data110120140180200220260270300310320340370410440490520530560590630640650690700720760770780800810820850900910930     P54 =

Q: Find the z-score that cuts off 70% in the body on the right.

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Q: The 95th percentile of 6-year-old boys' heights in the United States is 48.8 inches tall.  Explain…

A: Given: The 95th percentile of 6-year-old boys' heights in the United States is 48.8 inches tall.

Q: Find the Mean number of the percents 4.38+4.62+4.88+5.02+5.33+6.30

A: Mean is the measure of central tendency. mean of the observations is sum of observations divided by…

Q: find 40 th percentile   10,15,18,16,19,20,24,15,26,20,22,25,28,17

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Q: Using the manual method, calculate the 60th Percentile for the following numbers: 24, 69, 2, 71, 60,…

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Q: Find the 1rst quartile and 3rd quartile of the following numbers  41,43,46,47,48,50,51,52,53,54,55

A: The given numbers already in the increasing order: 41,43,46,47,48,50,51,52,53,54,55 Median = middle…

Q: In 2016 the Better Business Bureau settled 77% of complaints they received in the United States.…

A: Since you have posted a question with multiple subparts, we will solve first three subparts for you.…

Q: Take 50 observations at random ranged from (117- 254). Make a grouped frequency distribution. Find…

A: We need to take a 50 observations at random ranged from (117-254). For this we can use…

Q: Only 12 men have walked on the moon.  The average time these men spent on the moon was 43.92 hours.…

A: Sample: A smaller group of individuals taken from the population is called the sample. Statistic: It…

Q: According to College Board the scores on the AP History exam are normally distributed with N(72,…

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Q: A set of 100 values has a median value of 40. What is the value of the 75th percentile in this set…

A: Introduction: Percentiles are used in statistics to divide a set of numerical values into 100 equal…

Q: Using the manual method, calculate the 59th Percentile for the following numbers: 3, 2, 96, 79, 49,…

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Q: In a survey 500 adults were interviewed, 150 said they had early medical checkup. Find the 95% for…

A: Givensample size(n)=500No.of adults said they had early medical checkup(x)=150p^=xn=150500=0.30

Q: Find the weighted mean of the number of sheets on a roll of toilet paper: 7 brands have 22 sheets on…

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Q: Find the range of the following data points: 100.1, 97, 77, 68, 123.4, 23.5, 214, 156, 214.2, 211,…

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Q: Suppose a sample of 158158 tankers is drawn. Of these ships, 135135 did not have spills. Using the…

A: It is given that, among 158 tankers 135 did not have spills.

Q: 00 subjects were studied and 120 of them expressed a preference for brand x, what percentage…

A: The 200 subjects were studied; n=200 120 of them expressed a preference for brand x; x=120

Q: Many athletes (and their parents) worry about the risk of concussions when playing sports. A…

A: First let us sort the head circumferences (in inches) for the players on the team; No. Head…

Q: What z value is associated with the fewest 59%? Select one: a. -0.23 b. 0.22 c. 2.22 d. 0.27 e.…

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Q: The population Mean is 125 with a st dev of 22.However , the population distribtuon is skewed to the…

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Q: The temperature for the last 5 days were: 75⁰F, 66⁰F, 80⁰F, 68⁰F and 73⁰F. What was the mean…

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Q: so is 80% z-score 1.

A: The mean and standard deviation of standard normal distribution are 0 and 1, respectively.

Q: 95 percent divided .025 what is the z score?

A: The z-score is obtained as given below: PZ≤z=0.025z=ϕ-10.025=-1.96  Using Standard normal table

Q: condition. Find the lower cutoff score (number of berries which will go for juice).

A: The z score can be calculated as: z=x-μσ The required z score that is associated with the bottom…

Q: The scores of the sample of 11 senior high school students were recorded as follows: 70, 83, 74, 75,…

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Q: What is the weighted mean of the numbers 10%, 30%, 60%, 70, 86 and 94

A: The formula of weighted mean is given by…

Q: Find the z-score that cuts off 65% in the body on the left.

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Q: A random sample of 2,000 driver's license applications found that 17% reported their eye color as…

A: Solution: Given information: n= 2000 Sample size  p^= 0.17 Sample proportion Assumed Confidence…

Q: Alex is 80th in his class of 320 students. What is his percentile rank in class?

A: Data given p=80, n=320

Q: According to College Board the scores on the AP History exam are normally distributed with N(72,…

A: It is given that the scores on the AP History exam are normally distributed with N(72, 7.5).

Q: The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally…

A: Givenmean(μ)=1252standard deviation(σ)=129

Q: Report the proportion of the 370 students based on mobile phone brands as a percentage. Apple  269…

A: The percentage of a category can be calculated by dividing the frequency of the category by the…

Q: Your instructor has the Mid-Term examination grades. He told you that the 25th percentile is 51 and…

A: Given that, Your instructor has the Mid-Term examination grades. He told you that the 25th…

Q: Which region or regions showed difference in the average money spent during visit by region.

A: The Tukey HSD results show that there is a significant difference in the average money spent during…

Q: Take a random sample of 50 pages from a book and estimate the proportion of all pages that contain…

A: Here we want to find proportion of pages that contain figures.

Q: find 4th percentilefor given data  12,25,32,6,42,16,18,19,15,23,24,28,29,45,6,23

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Q: What is the percentile rank of a bag that contains 1025 chocolate​ chips?

A: The mean is 1252 and the standard deviation is 129.

Q: find the value between z score -2.9 and 1.5287

A: To find: Find the value between z score -2.9 and 1.5287

Q: competed in an ironman race, J

A: Here it is given that - 3500 people competed in an ironman race, John finished 805th,

Q: Find the first and third quartiles for a week's temperatures from last year's summer, expressed in…

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