Determine if the finite correction factor should be used. If​ so, use it in your calculations when you find the probability. In a sample of 900 gas​ stations, the mean price for regular gasoline at the pump was $2.849 per gallon and the standard deviation was ​$0.009 per gallon. A random sample of size 50 is drawn from this population. What is the probability that the mean price per gallon is less than ​$2.847​?

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

A: Solution

Q: The mean of a data set is 20 and the standard deviation is 2. What percentage of data value will…

A: Given  Mean=20, sigma=2 P(12<X<28)= ?

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: For a sample of 300 students, you find that the mean GPA is 3.35 with a standard deviation of .21.…

A: Solution: From the given information, Standard deviation is 0.21 and n=300.

Q: Exercise 1: The weight of a random scone sold by your favorite bakery has a mean of 105g I a…

A: Given: μ = 105 σ = 5 Formula Used: Z-score= X-μσn

Q: The lifetime risk of developing pancreatic cancer is about one in 78 (1.28%). Suppose we randomly…

A: Given that, The lifetime risk of developing pancreatic cancer is about one in 78

Q: What is the variance if the standard deviation is 1? A, 0.1 B, 1 C. 5 D. 100

A: Solution: given standard deviations of random variable x is sd(x)=1  Then varience of x will be?…

Q: The population average annual salary for high school teachers in Alhambra is $61,244. A random…

A:

Q: The owner of a computer repair shop has determined that their daily revenue has mean $7200 and…

A: We have given that  Mean(µ) = 7200Standard deviations (σ) = 1200 Number of days (n) = 30

Q: The average amount of students who ride the bus each year and Wilton Iowa is 60 students. The…

A: Given,   Mean = 60 Standard deviation = 5   The objective is to find the required probabilities.

Q: A quart of Parker's milk contains a mean of 39 grams of butterfat, with a standard deviation of 2…

A: Mean = 39 Standard deviation = 2

Q: According to The World Bank, only 9% of the population of Uganda had access to electricity as of…

A:

Q: Major league baseball salaries averaged $3.26 million with a standard deviation of $1.2 million in a…

A: Given that  Major league baseball salaries averaged $3.26 million with a standard deviation of $1.2…

Q: A population has a mean p = 81 and a standard deviation o = 25. Find the mean and standard deviation…

A: We have ro find value of mean of sampling distribution.

Q: If z is a standard normal variable, find the probability. The probability that z lies between -1.10…

A: We have to find the probability. The probability that z lies between -1.10 and -0.36.

Q: A company is considering drilling four oil wells. The probability of success for each well is 0.45,…

A: Solution: Let X be the number of success in  drilling  oil wells.  The probability of  success for…

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 population mean annual salary for plumbers is $49,000.  A random sample of 25 plumbers is drawn…

A: We have given that Mean(µ) = 49000Standard deviations (σ) = 5800n = 24

Q: In an certain species of newt, offspring are born either green or black. Suppose that 45% of these…

A: Given, 45% of these newts are born green. A random sample of size 167.

Q: Please explain how to solve the following:   The Aluminum Association reports that the average…

A: we are suppose to answer three sub parts .

Q: You have a piggy bank containing approximately $1000.00, all in loonies, and you ask a large number…

A: Mean()=975Standard deviation()=15

Q: Two hundred pre-engineering students have their midterm grades in the statistics, assuming normally…

A: Given data: μ=2.2σ=0.6Normal distributionN=200n(2<x<2.5)=?

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: A population has a mean u=71 and a standard deviation a=20. Find the mean and standard deviation of…

A:

Q: A normal population had a mean of 70 and a standard deviation of 12. You select a random sample of…

A: μ = 70σ = 12n = 9P(x¯>73) = ?

Q: Assume the average price for a movie is ​$7.35. Assume the population standard deviation is ​$0.44…

A:

Q: The symbol oz represents the standard deviation of a sample of size n. True O False

A: Answer : B. False

Q: The grades of business statistics are normally distributed with mean 80 and standard deviation 10.…

A: GivenMean(μ)=80standard deviation(σ)=10

Q: 2. Fill in the blanks: A standardized variable always has a mean of O and a standard deviation of…

A: 2. A standardized variable is always has mean 0 and standard deviation of 1.

Q: normal population had a mean of 70 and a standard deviation of 12. You select a random sample of 9.…

A: given data normal distributionμ = 70σ = 12n = 9 P(x¯<66) = ?

Q: The percent fo Coloradans that own a Subaru is 56%. If you were to take a random sample of size 70,…

A: We have given that,  Let X be the random variable from binomial distribution with probability (p) =…

Q: A population has a mean u= 85 and a standard deviation o = 16. Find the mean and standard deviation…

A: List of formulae : Mean of sampling distribution of sample mean ( x¯ ) : μx¯  = μ Standard deviation…

Q: Suppose that we know that 33.8% of the people born in the United States between 1936 and 1951 have…

A:

Q: In a Science test, the mean is 46 and the standard deviation is 4. Assuming the scores are normally…

A:

Q: The probabilities that a person is receiving a chat message 0, 1, 2, 3, 4, or 5 per day are the…

A: Let X be the random variable having probability distribution is,  X 0 1 2 3 4 5 P(x)  0.08 0.19…

Q: Assume that 11% of College students are left-handed. Suppose you randomly select 100 students and…

A: Given that n= number of observation= 100 p= probability of success= 11%=0.11 since each trial is…

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 length of a human pregnancy is 265 days, with a standard deviation of 14 days. Use the…

A:

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: Leave all probabilities as percentages. Define x on all problems with data. The number of…

A: The given data is 74, 52 and 83. a. sample mean- b. sample standard deviation is found using Excel.…

Q: A grocer finds that the cantaloupes in his store have weights with mean 0.7 kg and standard…

A: Given, Mean weight of cantaloupes is 700 gm. Standard deviation is 53 gm

Q: You play a game of chance that you can either win or lose (there are no other possibilities) until…

A: Probability of losing (p) the game is 0.61 Probability of winning the game = 1- p = 1- 0.61=0.39

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…

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.