The monthly utility bills in a city are normally distributed with a mean of $100 and a standard deviation of $15 find the probability that a randomly out selected utility bill is less than $68 then find the probability between $86 and $120 and then find the probability of more than $150

Q: Human body temperatures are normally distributed with a mean of 98.2 degrees and a standard…

A: Solution

Q: Salaries for teachers in a particular elementary school district are normally distributed with a…

A: Let X be the salaries for teachers in a particular elementary school district are normally…

Q: The p-value… is used to determine the Margin Of Error measures the number of standard deviations…

A: p value is a probabilty  which indicates the decision about null hypothesis assuming true  so that…

Q: The graph illustrates a normal distribution for the prices paid for a particular model of HD…

A: Solution: Let X be the prices paid for a particular model of HD television has a normal distribution…

Q: The basketball players are selling tickets to their game. They have determined the number of tickets…

A: MEAN :- Arithmetic mean (mean) of a set of observations is their sum divided by the number of…

Q: Truck delivery fleet travel a mean of 110 miles per day with a standard deviation of 25 miles per…

A: Obtain the Z-score for the random variable X equals 97. The Z-score for the random variable X equals…

Q: Tiger Woods hits an average driver 287.2 yards with a standard deviation of 24.6 yards. What is the…

A: The probability value is calculate by means of standard normal variate with the random variable,…

Q: Assume that the heights of women are normaly distributed with a mean of 63.6 inches and a standard…

A: Given,   Mean = 63.6 Standard deviation = 2.5 Sample size = 100   The objective is to find the…

Q: The household income in a particular town can be represented by a normal distribution with a mean of…

A: Solution: Let X be the  household income in a particular town has normal distribution with mean…

Q: IQ test scores are normally distributed with a mean of 98 and a standard deviation of 16. An​…

A:

Q: Money people carry into the store is normally distributed with a mean of $258 dollars and a standard…

A: GivenMean(μ)=258standard deviation(σ)=35sample size(n)=76

Q: The weights of steers in a herd are distributed normally. The standard deviation is 300⁢lbs and the…

A:

Q: The amount of revenue of a shop is approximately normally distributed with a mean of $4500 and a…

A: We have to find out given probability..

Q: Assume that the salaries of elementary school teachers are normally distributed with a mean $35,000…

A:

Q: The mean of a normal probability distribution is 600; the standard deviation is 20. About 68% of…

A: given data normal distribution population mean  = 600 population sd = 20

Q: Deer hunters score the antlers of their quarry in order to compare the most spectacular specimens.…

A:

Q: The average number of pounds of red meat a person consumes each year is 196 with a standard…

A: We are given,μ = 196σ = 22n = 60

Q: The average sales price of a single-family house in the United States is $235,000. You randomly…

A: Given, Mean sales price of family in US is $2,35,000 Standard deviation is $50,000 I.e.,…

Q: The lengths of pregnancies are normally distributed with a mean of 269 days and a standard deviation…

A: We have to find given probability.

Q: Incomes for a certain profession are normally distributed with a mean of $64,745 and standard…

A:

Q: Salaries for teachers in a particular elementary school district are normally distributed with a…

A: Given, Salaries of the teacher follow normal distribution with mean $41,000 and standard deviation…

Q: Find the indicated probability. The weekly incomes of a summer intern in Tesla are normally…

A: Given data,Mean μ=1500sd    σ=300P(X<1200)=?

Q: The average credit card debt for college seniors is $3262. If the debt is normally distributed with…

A: Let X be the random variable from normal distribution with mean (μ) = $3262 and standard deviation…

Q: The sales of a salesman average $500 with a standard deviation of $15.2. He gets a $100 commission…

A: The sales of a salesman average $500 with a standard deviation of $15.2. He gets a $100 commission…

Q: Automobile repair costs continue to rise with the average cost now at $367 per repair. Assume that…

A: Table and R command has utilized to calculate the probability.

Q: A survey indicates that for each trip to the supermarket, a shopper spends an average of 45 minutes…

A: Given that, The lengthsnof time spent in the store are normally distributed and are represented by…

Q: IQ is normally distributed with a mean of 100 and a standard deviation of 15. Suppose one individual…

A: Let X = IQ of an individual.  The probability that the person has an IQ greater than 140.

Q: Assume that adults have IQ scores that are normally distributed with a mean of 103.6 and a standard…

A: Given that adults have IQ scores that are normally distributed with, Mean = 103.6 Standard deviation…

Q: Assume IQ scores for adults are normally distributed with a mean of 100 and a standard deviation of…

A:

Q: Data from the Bureau of Labor Statistics’ Consumer Expenditure Survey show that annual expenditures…

A: Given information- For the year 2001- Population mean, µ = $235 Population standard deviation, σ =…

Q: Provide an appropriate response. Use the Standard Normal Table to find the probability.   IQ test…

A: Solution :- Given data :- μ = 105σ = 13x ^ = 122 Using Z-Score Formula :- z=x^-μσ

Q: 2. Automobile Repair Costs. Automobile repair costs continue to rise with the average cost now at…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: The annual income for a sample of 450 part-time students is normally distributed with a mean income…

A: Given that.   X~N( μ , ?)   μ=31000 , ?=3000   Z-score =( x - μ )/?

Q: Solve the problem. Assume that mountain lions' weights are normally distributed with a mean of 62.6…

A: We have given that,  X be the random variable from normal distribution with mean (μ) = 62.6 ,…

Q: The mean of a normal probability distribution is 600; the standard deviation is 20. About 95% of…

A: GivenMean(μ)=600standard deviation(σ)=20

Q: IQ scores are normally distributed with a mean of 100 and standard deviation of 15. Find the…

A: Given,          Mean μ=100        standard deviation σ =15

Q: The IQ of highschool seniors is normally distributed with a mean of 100 and a standard deviation of…

A: The sample size is n=15. The population mean is μ=100. The population standard deviation is σ=15. We…

Q: Most exhibition shows open in the morning and close in the late evening. A study of Saturday arrival…

A: From the provided information, Mean (µ) = 2 hours and 2 minutes or 122 minutes Standard deviation…

Q: The average number of minutes per week that teenagers spend texting is 250.0. Assume the standard…

A: Normal distribution is a continuous distribution which has many real life applications. Normal curve…

Q: A door-to-door salesperson is visiting houses in Hamilton to sell internet plans. The probability…

A: The probability that a house decides to buy the internet plan is 25%. The salesperson visits 100…

Q: The number of bacterial colonies on a petri dish can have an average of 2.5 per cm2 Define the…

A: Given: The number of bacterial colonies on a petri dish can have an average of 2.5 per cm.

Q: A particular fruit's weights are normally distributed, with a mean of 424 grams and a standard…

A: Given that, Mean = 424 Standard deviation = 26 Sample size = 12

Q: A professor of statistics noticed that the marks in his course are normally distributed. He also…

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.