Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested. Find Pag, the 86-percentile. This is the temperature reading separating the bottom 86% from the top 14%. Pg6 PC

Q: Assume the average (mean) number of minutes a group of people meditate is 20 minute per day and has…

A: Solution: Let X :  A group of people mediate.  Assumed X be the normal distribution with mean 20…

Q: For each data set, compute the standard deviation. What is the standard deviation of the sample of…

A:

Q: The average time it takes a certain brand of ibuprofen to start working is 25 minutes, with a…

A: The mean of the sampling distribution of the sample mean is represented as and is given by

Q: A survey of 1000 men ages 20 to 30 found that their heights were normally distributed, with a mean…

A: Solution: Let X be the height of men ages 20 to 30. From the given information, X follows normal…

Q: A sample of the number of sick days used by employees at a clinic is as indicated: 0,    0,    1,…

A: Given data 0,0,1,1,2,4

Q: On a standardized exam, the scores are normally distributed with a mean of 300 and a standard…

A:

Q: The weights of 1,000 children average 50kg and the standard deviation is 5kg. How many children…

A: Given  mu=50, sigma=sd=5, n=1000 We want to find How many children weigh between 40kg and 55 kg?

Q: A certain machine makes electrical resistors having a mean resistance of 50 ohms and a standard…

A: Let, X= resistance Given that X follows a normal distribution with mean=50 and standard deviation=4…

Q: The students in an AFDA class have a mean height of 66 inches and a standard deviation of 7 inches.…

A: Mean(µ) = 66Standard deviations (σ) = 7

Q: According to the National Association of Colleges and Employers, the 2015 mean starting salary for…

A: (d) Determine the new college graduate in business have to earn in dollars in order to have a…

Q: The installation of a radon abatement device is recommended in any home where the mean radon…

A: a)   Given that the radon abatement device is recommended in any home if the mean radon…

Q: In a mango farm of 250 trees, the mean harvest is 96.5 kilos of fruit per tree with a standard…

A: Given,sample size(n)=250mean(μ)=96.5standard deviation(σ)=8.4

Q: A midterm exam has a mean of 76.0 and a standard deviation of 8.0. If any student with a z-score of…

A:

Q: The mean height of Grade 11 students at a certain University is 150 cm and the standard deviation is…

A: Given that: Mean height: μ=150 cm Standard deviation: σ=12 cm Number of students: n=11 a. greater…

Q: Given that the mean weight of senior high school students is 65kg with a standard deviation of 10kg.…

A:

Q: Find the Median of the data set Compute the Standard deviation. (i)

A: To find the median we have to arrange the data set first.  That is: 15   17   18   19   20   31   33…

Q: On a standardized exam, the scores are normally distributed with a mean of 650 and a standard…

A:

Q: Approximately how many policemen have waist girth less than 37.25 inches

A: The waist of 2,500 policemen is normally distributed with a mean of 35 inches and a standard…

Q: A soft-drink dispenser can be adjusted to deliver any fixed number of ounces of soft-drink. If the…

A:

Q: Assume that women's weights are normally distributed with a mean given by ?=143 lb and a standard…

A: We have to find probability using z table.

Q: Find the standard deviation for the grouped data.

A: Solution; Interval Frequency (f) midpoint(x) fx (x-x)2 f*(x-x)2 50-59 7 54.5 381.5 351.5625…

Q: The birth weights of newborn elephants are Normally distributed with a mean of 160 pounds and a…

A:

Q: The weights, in pounds, of a group of dogs are:          18, 31, 22, 46, 55, 28.    Calculate the…

A: Given Data The weight of a group of dogs are: 18,31,22,46,55,28   The size of group is N=6   The…

Q: All the houses in Stanton county have a mean size of 1650 square feet with a standard deviation of…

A:

Q: A certain machine makes electrical resistors having a mean resistance of 50 ohms and a standard…

A: Percentage of resistor having exceeding resistanc 56 ohms =6.68%  # option(c) correct

Q: Assume that the heights of a population of adults form a normal distribution with a mean µ =69…

A: It is known that, there are 12 inches in 1 foot.The provided information are:

Q: Assume that the test scores from a college admissions test are normally distributed, with amean of…

A:

Q: The weights of oranges in a harvest are normally distributed, with a mean weight of 150 grams and…

A: From the provided information, Mean (µ) = 150 Standard deviation (σ) = 10 Let X be a random variable…

Q: а. How many of the women have a height that is within 1 standard deviation of the mean? b. How many…

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Q: Find the sample standard deviation of these values. Round to the

A:

Q: Assume the average income of workers in jordan equal 400 JD, a sample of 500 workers are taken and…

A: please see the next step for solution

Q: On a construction site, the amount of dirt scooped by a forklift machine is normally distributed…

A:

Q: "The weights of 1,000 children, in average, is 46kg with standard deviation of 11kg. Suppose the…

A: Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: If the mean score on a math quiz is 12.6 and 38.2​% of the students in your class scored between…

A: Mean = 12.6 area between 11.1 and 14.1 is 38.2%

Q: A given set of data has a specific standard deviation. Describe what will happen to the standard…

A: Answer: The standard deviation of new data is remains same as original data. As a general rule, the…

Q: The average number of hours worked per week for college students is 27, and the standard deviation…

A: As per guidelines expert have to answer first question only dear student please upload other…

Q: On a standardized exam, the scores are normally distributed with a mean of 170 and a standard…

A: We have to find z score..

Q: A particular fruits weights are normally distributed, with a mean of 797 grams and a standard…

A: Let us assume X= weight of a particular fruit Given that X follows a normal distribution with mean=…

Q: A small grocery store, on average, has daily sales of Php28, 176.44. The standard deviation of sales…

A: Solution: Let X be the daily sales. From the given information, µ = Php 28,176.44 and σ = Php 1500.

Q: In order to determine the average weight of carry-on luggage by passengers in airplanes, a sample of…

A: 1.   From the given information, the sample size is 250.  The population standard deviation is 2.5.…

Q: Assume that the test scores from a college admissions test are normally distributed, with amean of…

A: Hence,the percentage of the people taking the test score between 400 and 500 is…

Q: To determine the organic material in a dried lake bed, the percent carbon by mass is measured at two…

A: F test is used to check whether the variances or standard deviations of two groups differ (or) not.…

Q: A person in the U.S. eats about 25 pounds of M&M's per year with a standard deviation of 3 pounds.…

A: Solution: Given  μ= 25 Pounds  Population meanσ= 3 Pounds Population standard deviations Assumed…

Q: The Weather Underground reported that the mean amount of summer rainfall for the northeastern US is…

A: Solution: State the hypotheses. Null hypothesis: That is, the mean amount of summer rainfall for…

Q: John beale of stanford, ca, recorded the speeds of car driving past his house, where the speed limit…

A: Given: μ=23.84σ=3.56 a) The Z score is obtained as below: z=x-μσ=20-23.843.56=-3.843.56=-1.08 Thus,…

Q: Write down the formulas for the standard deviation of p.

A: Let sample size = n Sample proportion = p̄

Q: m and 5.50 m. What is the standard deviation

A: Introduction: The Standard Deviation in descriptive statistics is the degree of dispersion or…

Q: Suppose that the mean cranial capacity for men is 1160 cc (cubic centimeters) and that the standard…

A:

Q: A survey of 1000 men ages 20 to 30 found that their heights were normally distributed, with a mean…

A: From the provided information, Mean (µ) = 65 inches Standard deviation (σ) = 2.5 inches

Q: Assume that the distribution of scores on a college entrance exam is normal, with a mean of 500 and…

A: As per guideline expert have to answer first 3 subparts only.