he standard deviation of the average, ?¯ : (b) The probability that the average amount of sunscreen from 5 tubes will be less than 338 ml. Answer:

Q: The weight of oranges growing in an orchard is normally distributed with a mean weight of 8 oz. and…

A: Given that, μ=8 ozσ=1 Then, P7<x<9 Then, by the empirical rule solve as,…

Q: What is the maximum blood pressure reading of the lowest 70% of adult males?

A:

Q: Suppose the platelet count of such patients with dengue fever follows a normal distribution with a…

A: Suppose the platelet count of such patients with dengue fever follows a normal distribution with a…

Q: What is the mean of a distribution that has a standard deviation of 16.5 if a PERFORMANCE value of…

A: Hi! Thank you for the question As per the honor code, We’ll answer the first question since the…

Q: At a computer manufacturing company, the actual size of computer chips is normally distributed with…

A:

Q: For normally distributed variables, approximately what percentage of values fall within two standard…

A: Given a normally distributed variable X. Let us assume its mean is µ and standard deviation…

Q: The incomes of trainees at a local mill are normally distributed with a mean of $1100 and a standard…

A: The provided information are: Population mean (µ) = 1100 Population standard deviation (σ) = 150…

Q: In a county male height is normally distributed with a mean of 175 cm and a standard deviation of 6…

A:

Q: The distribution of scores on the SAT is approximately normal with a mean of u = 500 and a standard…

A: Mean(μ)=500 Standard deviation(σ)=100 The objective is to find the min. SAT score needed to be…

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: A livestock company reports that the mean weight of a group of young steers is 1154 pounds with a…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: At a local high school, GPA's are normally distributed with a mean of 2.9 and standard deviation of…

A: Given problem Given that   At a local high school, GPA's are normally distributed with a mean of…

Q: For a sample of 18 cars, you find the standard deviation of the price is 6150 (measured in dollars).…

A: Given that, Sample size of cars n=18 Standard deviation of the price s=6150

Q: On a planet far far away from Earth, IQ of the ruling species is normally distributed with a mean of…

A: Solution: Let X be the IQ of an individual. From the given information, X follows normal…

Q: At my work there is a fancy coffee machine that dispenses 120 ml of coffee, but I believe that the…

A: Given data and calculation for sample standard deviation is shown below Hypothesized mean = 120 ml…

Q: A certain machine makes electrical resistors having a mean resistance of 40 ohms and a standard…

A: Let us consider X be a random variable which is used to denote resistance. It is given that we can…

Q: The daily income of bank auditors in SSS Commercial Bank is normally distributed with a mean of P675…

A: Given

Q: 2. The mean height of the grade nine students at a certain high school is 164 centimeters and the…

A: The random variable height follows normal distribution. We have to find the probability of the…

Q: A major department store has determined that its customers charge an average of $500 per month, with…

A:

Q: If the mean exam score of a class was 75%, with a standard deviation of 15%,what percent of students…

A: Given,mean(μ)=0.75standard deviation(σ)=0.15

Q: In a certain factory of rags, the time it takes for the workers to finish one rag is normally…

A: Solution: Let X be the time it takes for the workers to finish one rag. From the given information,…

Q: A company sells sunscreen in 400 milliliter (ml) tubes. In fact, the amount of lotion in a tube…

A: From the provided information, Mean (µ) = 396 ml Standard deviation (σ) = 7ml Sample size (n) = 6…

Q: In a certain​ study, women's heights are found to be approximately normally distributed with a mean…

A: Given that, In a certain​ study, women's heights are found to be approximately normally distributed…

Q: deviation

A: Let X = IQ of an individual. IQ of the ruling species is normally distributed with a mean of 118 and…

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

A:

Q: A certain machine makes electrical resistors having a mean resistance of 40 ohms and a standard…

A: We want to find the probability (%)

Q: The amount of daily sales of a candy shop in weekdays is approximately normally distributed with a…

A: Let us denote: X=the amount of daily sales of a candy shop in weekdays Given that X follows a normal…

Q: Suppose there is a city where the mean cost per month of a one-bedroom apartment is $1,500, with a…

A: Given: Meanμ=1500Standard deviationσ=250

Q: Suppose the mean blood glucose of a population of adults is 162 with a standard deviation of 58.…

A:

Q: A livestock company reports that the mean weight of a group of young steers is 1150 pounds with a…

A: μ=1150σ=87  =P1050<x<1250

Q: The distribution of head circumference for full term newborn female infants is bell-shaped with a…

A: Let , X be the head circumference for full term newborn female infants.   The distribution of random…

Q: When the weight of a parcel of oranges was measured, it was observed that the average 190 grams and…

A: Given: Population mean μ=190 Population standard deviation σ=25 Let X be the weight of a parcel X ~…

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: At Pacific Freight Lines, bonuses are given to billing clerks when they complete 300 or more freight…

A: Given information Mean µ = 270 Standard deviation σ = 16 proportion of the time should a randomly…

Q: A manufacturer of calculator batrries claims that the mean length of life for its battry is 500…

A:

Q: In a particular city, the weight of newly born babies is normally distributed with a standard…

A:

Q: A livestock company reports that the mean weight of a group of young steers is 1180 pounds with a…

A: GivenMean(μ)=1180standard deviation(σ)=90

Q: Assume the average amount of caffeine consumed daily by adults is normally distributed with a mean…

A: The detailed solution is as follows below:

Q: Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 3000 grams and…

A: The formula for z score is given by, z score = score - meanstandard deviation in week 35 the mean of…

Q: The average weight of a group of students is 68 kg with a standard deviation of 8 kg. If the z-score…

A: Givenmean(μ)=68standard deviation(σ)=8z-score=0.5

Q: In a population of 100 male fruit flies, the mean abdomen length is 2.0 mm and the standard…

A: Given  μ=2 and σ=0.3 Use standardization as z=x-μσ

Q: Suppose there is a city where the mean cost per month of a one-bedroor apartment is $1,500, with a…

A: The percentage of one bedroom apartments in the city cost between $750 and $1000 is,

Q: The amount of time a certain brand of light bulb lasts is normally distributed with a mean of 1800…

A: X is normally distributed.  Mean = 1800 hours Sigma = 25 hours  X represents the amount of  time a…

Q: The gas mileage for a new model of car is normally​ distributed, with a standard deviation of 3.5…

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

Q: In a county male height is normally distributed with a mean of 177 cm and a standard deviation of 6…

A:

Q: A company responsible for making gumballs found that their gumballs had an average diameter of 2.21…

A: The given graph is the normalised distribution where mid line is the mean.  First left and right…

Q: When Wyatt commutes to work, the amount of time it takes him to arrive is normally distributed with…

A: The arriving time to work (X) is normally distributed with mean (μ) = 45 minutes and standard…

Q: A set of data items is normally distributed with a mean of 40 and a standard deviation of 6. Convert…

A: Given set of data is normally distributed with mean = 40Standard deviation = 6The Z score for any…

Q: In a class with 50 students, a 60-item test is conducted. After the test, it is found that the mean…

A: Given: In a class with 50 students, a 60-item test is conducted. After the test, it is found that…

Q: The speeds of motorists passing a particular point on a motorway are found to be normally…

A:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.