Find the probability and interpret the results. If​ convenient, use technology to find the probability.   The population mean annual salary for environmental compliance specialists is about $62,000. A random sample of 36 specialists is drawn from this population. What is the probability that the mean salary of the sample is less than ​$58,500​? Assume standard deviation=$6,000 . The probability that the mean salary of the sample is less than ​$58,500 is what?

Q: Ryanair charges a mean base fare of $59. In addition, the airline charges for checking in at the…

A: The population standard deviation of total flight cost is known to be $25. An average $39 per…

Q: s) The average time Filipinos spent in streaming site is 15 hours per week. Suppose a sample of 65…

A: Given data Mean μ = 15 hours Standard deviation ? = 3 hours Sample size n = 65 a) Probability that…

Q: a. What is the probability that someone consumed more than 43 gallons of bottled​ water? b. What is…

A: Note: Since you have posted a question with multiple sub-parts, we will solve first three subparts…

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: Candidates for employment at a city fire department are required to take a written aptitude test.…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: The mean preparation fee H&R Block charged retail customers last year was $183(the Wall Street…

A:

Q: The time taken to complete a 25km race is normally distributed, with an average  time (μ) of 2.30…

A:

Q: Calculate the standard deviation value by finding the value a in the table so that the random…

A: From the given information, x 0 1 3 4 f(x) 2/5 a 3/20 7/20 The value of a is obtained…

Q: The annual per capita consumption of bottled water was 30.8 gallons. Assume that the per capita…

A: Solution Dear students as per guidelines we answer the first three subparts only. Please remaining…

Q: The probability that a house in an urban area will be burglarized is 5%. A sample of 50 houses is…

A: Introduction: Denote X as the number of sampled houses that were burglarized in the given urban…

Q: A town has 500 real estate agents. The mean value of the properties sold in a year by these agents…

A: Note: (1). According to Bartleby expert guidelines, we can answer only first question with their…

Q: The average income in the city of Red Deer is $85,000 with a standard deviation of $20,000.  A…

A: It is given that the mean is $85,000 and the standard deviation is $20,000.

Q: The average time Filipino spent in streaming site is 15 hours per week. Suppose a sample of 65…

A: Define the random variables, Xi : Amount of time spent in streaming site. i=1,2,3,...,65 Given, µ=…

Q: The dean of a business school claims that the average monthly income of his school's Bachelor of…

A: It is given that the mean is 24,700 and the standard deviation is 4,100.

Q: An English literature course was taken by 250 students. Each member of a random sample of 50 of…

A: a) The required probability is calculated as follows: PX¯-μ>2.5=PZ>2.53050…

Q: The mean hourly pay rate for financial analyst in the insurance company is $32.62, and the standard…

A:

Q: The lengths of lumber a machine cuts are normally distributed with a mean of 105 inches and a…

A:

Q: High school girls average 80 text messages daily. Assume the population standard deviation is 15…

A: Given information:

Q: DI HAND UR EXCEL FILE. The life expectancy in the United States is 75 with a standard deviation of 7…

A: GivenMean(μ)=75standard deviation(σ)=7sample size(n)=49

Q: The average cost of a one-bedroom apartment in a town is £550 per month. A random sample of 50…

A:

Q: The average GPA at the University of North Carolina is 3.2, with a standard deviation of 0.3. Assume…

A: According to the provided information, Mean (μ) = 3.2 Standard Deviation (σ) = 0.3

Q: New York City is the most expensive city in the United States for lodging. The mean hotelroom rate…

A: a) That is, µ= 204, σ= 55. Thus,  X~ N (204, 55). The required probability is calculated as follows:

Q: Five hundred children participated in a field demonstration. Their height averaged 100cm with a…

A: Normal Distribution: A continuous random variable X is said to follow Normal distribution with…

Q: THE TIME TAKEN TO COMPLETE A 25KM RACE IS NORMALLY DISTRIBUTED, WITH AN AVERAGE TIME (µ) OF 2.30…

A: Obtain the probability that a randomly selected participant will take between 2.40 and 2.50 hours to…

Q: The time taken to complete a 25km race is normally distributed, with an average time (μ) of 2.30…

A: (Q.1) Obtain the probability that a randomly selected participant will take between 2.40 and 2.50…

Q: The mean preparation fee H&R Block charged retail customers last year was $183 ( TiJe Wall…

A: According to central limit theorem, if the population is normally distributed or the sample size is…

Q: (a) What is the probability that next year the total precipitation for New York State is more than…

A: (a) The random variable X is defined as the annual precipitation amount which follows normal…

Q: Five hundred children participated in a field demonstration. Their heights averaged 110 cm with a…

A: Given : x(children participated in field demons.) n(sample size)=500

Q: Experience has shown that the time taken to drive from city A to city B is normally distributed,…

A:

Q: preparation fees is $50.   What is the probability that the mean price for a sample of 30 H&R Block…

A: mu = 183 sigma = 50

Q: The probability that a person buys a car from a particular dealership after a test-drive is 25%.…

A: Given, p = 0.25 n = 100

Q: Candidates for employment at a city fire department are required to take a written aptitude test.…

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

Q: The probability that a person catches a cold during the cold and flu season is 0.4. Assume that 10…

A: Solution : Given that, p = 0.4 q = 1 - p =1-0.4=0.6 n = 10

Q: Five hundred children participated in a field demonstration. Their heights| averaged 110 cm with a…

A:

Q: The time taken to complete a 25km race is normally distributed, with an average time (μ) of 2.30…

A:

Q: The annual per capita consumption of bottled water was 33.7 gallons. Assume that the per capita…

A:

Q: The annual per capita consumption of bottled water was 31.2 gallons. Assume that the per capita…

A: 1] mean μ=31.2 2] standard deviation σ=10 3] Let X be the number of gallons of bottled water someone…

Q: The life insurance industry maintains that the average worker in Saskatoon has nomore than $25,000…

A: p(type II error ) = p(failed to reject Ho | H1 is true)

Q: 3. If it rains tomorrow, you will earn €200 by doing some tutoring; if it is dry, you will earn €280…

A: Given: P(Rain ) = 0.2 x(Rain) = 200 P(Dry) = 1 - P(Rain) = 0.8 x(Dry) = 280

Q: Ryanair charges a mean base fare of $59. In addition, the airline charges for checking in at the…

A:

Q: Experience has shown that the weight of lemons produced by an orchard is normally distributed, with…

A: From the provided information, Mean (µ) = 50 g Standard deviation (σ) = 8.50 g Let X be a random…

Q: New York City is the most expensive city in the United States for lodging. The mean hotelroom rate…

A:

Q: Five hundred children participated in a field demonstration. Their heights averaged 110 cm with a…

A: Given: μ=110σ=6

Q: The average salary for a civil engineering major is $75,000 with a standard deviation of $10,000. In…

A:

Q: Suppose a research firm conducted a survey to determine the mean amount steady smokers spend on…

A: According to the given information, we have Mean = 20 Standard deviation = 7 Sample size = 110

Q: Experience has shown that the weight of lemons produced by an orchard is normally distributed, with…

A:

Q: Experience has shown that the weight of lemons produced by an orchard is normally distributed, with…

A: Let us assume X= the weight of the lemons produced by an orchardGiven that X follows a normal…

Q: (a) What would be the standard deviation of the sample mean? (b) What is the probability that the…

A:

Q: Heneroso & Co. distributes Christmas baskets to each employee with a mean cost of 2,500 pesos and a…

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.