The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips.

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: Find the number of boys and the combined standard deviation

A: Given :  Our aim is to find the number of boys and combined standard deviation.

Q: Medical research suggests that systolic blood pressure in adults is approximately normally…

A: Denote X as the blood pressure in adults. It is given that X is approximately normally distributed,…

Q: The sale price of a certain model of grand piano across the country is approximately normally…

A: Given: Mean = 70000, Standard deviation =5400 Let Y defines the sale of certain model of grand…

Q: The average age of the marketing executives in an ad agency is 26, with a standard deviation of 6;…

A: The coefficient of variation formula is, CV = (σ/µ) × 100%, where µ is the mean and σ is the…

Q: What is the standard deviation on the graph ?

A:

Q: The drive distance (in yards) for professional golfers is normally distributed with a mean of 308.04…

A: 68-95-99.7-rule: Let X be an observation from a normal distribution, having mean µ and standard…

Q: The number of minutes spent reading in one day is normally distributed with a mean of μ = 23 and a…

A: The normal distribution:A continuous random variable X is said to follow normal distribution if the…

Q: Assuming that the heights of college women are normally distributed with mean 62 inches and standard…

A:

Q: The mean speed of a sample of vehicles along a stretch of highway is 67 miles per hour, with a…

A: From the provided information, Mean (µ) = 67 miles per hour Standard deviation (σ) = 2 miles per…

Q: Assuming that the heights of college women are normally distributed with mean 64 inches and standard…

A:

Q: A large company has many employees and the annual salaries of those employees follow a normal…

A: X follows a Normal distribution with mean = 70000 and S.D = 12000 Then z=(x-mean)/SD =…

Q: Assume that the heights of women are normally distributed with a mean of 64.9 inches and a standard…

A: Given: Heights of women = X X follows Normal distribution with mean 64.9 inches and standard…

Q: If the mean height of bonsai trees is 52 cm with a standard deviation of 10 cm, 95% of the trees are…

A: NOTE : As per our guidelines we have to answer the first question if multiple questions are posted…

Q: A particular leg bone for dinosaur fossils has a mean length of 5 feet with a standard deviation of…

A: Given, A particular leg bone for dinosaur fossils has a mean length of 5 feet with a standard…

Q: The sample standard deviation for the cost is $

A: The sample standard deviation for the frequency distribution is, s=1n-1∑ifixi-x2 The sums are,…

Q: The length of time it takes a Grade 11 student to play the Candy Crush computer app follows a normal…

A: Given that  The length of time it takes a grade 11student to play the candy crush computer is…

Q: The mean speed of a sample of vehicles along a stretch of highway is 64 miles per​ hour, with a…

A: Given, μ=64σ=4P(52<X<76)=?

Q: Many families in California are using backyard structures for home offices, art studios, andhobby…

A: Let us consider X be a random variable which denotes the cost of shingled backyard structure which…

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

A:

Q: What is the difference between what the z score measures and what the standard deviation measure?

A: z score is standard score and the formula for finding z score is,

Q: During the fall season of racing at Dover International Speedway, the mean speed of the cars racing…

A: Assume that the racing speeds are normally distributed.

Q: when designing aircraft cabins, what ceiling height will alow 98% of men to stand without bumping…

A:

Q: The students of a large university in Luzon were studied regarding their hours of sleep at night.…

A: As the distribution of the hours of sleep can be modeled as normal distribution with mean μ of 6.9…

Q: The manager of a local gym has determined that the length of time patrons spend at the gym is a…

A:

Q: During one season of racing at the Talladega Superspeedway, the mean speed of the cars racing there…

A:

Q: In a survey, 35 people were asked how much they spent on their child's last birthday gift. The…

A: Confidence interval is a concept closely related to interval estimation. Confidence interval is…

Q: What is the z-score of a value of 27, given a set mean of 24, and a standard deviation of 2?

A:

Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches.

A: Given that  adult men have heights with mean (μ) = 69 inches Standard deviation (σ) = 2.8 inches We…

Q: The weight of potato chips in a large-size bag is stated to be 24 ounces. The amount that the…

A:

Q: 4. Find the 60th percentile for the weight of 10-year-old girls given that the weight is normally…

A:

Q: A popular soft drink is sold in 1-liter (1,000-milliliter) bottles. Because of variation in the…

A: A continuous random variable X is said to follow Normal distribution with parameters μ and σ2 if…

Q: Describe  the scores in a sample  that has a standard  deviation of zero

A: If the standard deviation is zero there will be no dispersion of scores from the Mean. It means that…

Q: The advertised weight is 2.13 ounces , the mean is 2.2 ounces and the standard deviation is 0.04…

A: P(X < 2.13) = = P(Z < -1.75)= 0.0401 or 4.01%

Q: A company produces different types of drinks. It has been observed that the amount of drink in a…

A: Given,meanμ=500standard deviationσ=4.75

Q: The hotel room rate in Miami, Florida is normally distributed with a mean of $286 per night. Assume…

A:

Q: Assuming that the heights of college women are normally distributed with a mean of 62 inches and…

A:

Q: An agronomist measured the height of 134 canola plants. The mean height was 214 cm and the standard…

A:

Q: The owner of Britten's Egg Farm wants to estimate the mean number of eggs laid per chicken. A sample…

A: Given Data : Sample Size, n = 20.0 Sample Mean, x̄ = 20.0 standard…

Q: The daily water usage per person in Davao City is normally distributed with a mean of 18 gallons and…

A: Given information: Let X be the random variable denoting the daily water usage per person in Davao…

Q: A biologist found the wingspans of a group of monarch butterflies to be normally distributed, with a…

A: Given,Mean (μ) = 52.2Standard deviation (σ) = 2.3a) Required probability is…

Q: In a survey of women in Canada, the mean height was 65 inches with a standard deviation of 3 inches.…

A:

Q: The daily water usage per person in Davao City is normally distributed with a mean of 20 gallons and…

A: Empirical Rule : The empirical rule, also referred to as the three-sigma rule or 68-95-99.7 rule, is…

Q: In what percentile is an infant’s body weight of 7 pounds, if infant body weights at that age are…

A:

Q: A researcher wished to compare the average amount of time spent in extracurricular activities by…

A: Disclaimer: According to our guidelines, we do not provide a hand-written solution. Here, I am…

Q: A researcher in Des Moines, Iowa sampled 56 households and found the mean number of puppies per…

A: # sample size n=56  population mean mu=3.03  standard deviations=1.5  then to find 62nd percentile…

Q: A distribution of newly manufactured amusement park bumper cars has mean 400 pounds and standard…

A: Explained below

Q: Based on the relationship between the mean, standard deviation, and minimum time, is it reasonable…

A: HERE WE CAN USE THAT minimum value is approx 3 times standard deviation away from mean.

Q: In a study of Ridge View's boys' basketball team, the average height is 68 inches and standard…

A: Given that, In a study of Ridge view's boys' basketball team, the average height is 68 inches and…

Q: In a survey of men aged 20-29 in a certain country, the mean height is 73.4 inches with a standard…

A: The random variable X is defined as the height of men aged 20-29 which follows normal distribution…