The weight of bags of potato chips produced by one machine at a packaging plant has a standard deviation of 0.2 ounces. Suppose samples of 25 bags are drawn from a production run and weighed. What is the standard deviation σx of the mean result?     1.0   0.2   0.008   0.04

Q: The mean yield of wheat from a district A was 210 tbs. with S.D.= 10 lbs. per acre from sample of…

A: Any assumption about the parameter or probability function is known as Hypothesis testing. For the…

Q: A random sample of 121 bottles of cologne showed an average content of 4 ounces. It is known that…

A: Solution-: Given:  In this problem, which type of quantity does the 4 ounces refer to?

Q: Suppose that the weights of candy bars vary according to a normal distribution, with mean of 62…

A: The question is about normal dist. Given : The mean weights of candy bars ( μ ) = 62 g The std.…

Q: A dataset of 23 values on a variable has a mean of 10.8 and a standard deviation of 3.2. The third…

A:

Q: The lengths of brook trout caught in a certain Colorado stream are normally distributed with a mean…

A: Given that :  Mean = 14 inches S. D = 3 inches Here we use standard normal distribution concept…

Q: If the average mid twenties male weighs 169lbs. and a weight of 150 is in the 31st. percentile, what…

A: We are given,Mean = μ = 169X = 150Percentile = 31st

Q: A sample of 90 items has mean 55 and standard deviation 3. A second sample of 110 items has mean 60…

A:

Q: The weights of apples from a certain farm are normally distributed with a standard deviation of 1.4…

A: Solution: Let X be the weight of apple. From the given information, X follows normal distribution…

Q: The mean rate for cable t.v.from a sample of 80 households was $29 per month with a standard…

A:

Q: Find the mean and the standard deviation of the amount charged

A: From the given information,

Q: The monthly rents for studio apartments in Abu Dhabi have a mean of AED 3370 and a standard…

A: given data  μ= 3370σ = 680n = 64mean and standard error= ?

Q: A test score of 45 has an equivalent standard score (z-score) of 1.6. If the mean test score is 39,…

A: given dataraw score  x = 45standard score   z = 1.6mean μ = 39S.D.  σ = ?

Q: Assume that a sample is used to test a normal population mean(μ). A sample of size 33 with a mean of…

A: Answer: From the given data, Sample size(n) = 33 mean (X¯) = 26.2 Standard deviation (S) = 5.4 μ =…

Q: e diameters of Douglas firs grown at a Christmas Tree Farm are normally distributed with a mean of 4…

A: GIVEN DATA, normal distributionμ=4σ=1.5we have to find out the given probabilities.

Q: In one town, the number of pounds of sugar consumed per person per year has a mean of 6 pounds and a…

A: In one town, the number of pounds of sugar consumed per person per year has a mean of 6 pounds and a…

Q: hree jobs are executing in parallel. The processing time of each job has an exponential istribution…

A:

Q: Determine the mode and standard deviation of the data

A: The frequency distribution from given graph is written as,: underline; position: relative;…

Q: The shape of the distribution of the time required to get an oil change at a 20-minute oil-change…

A:

Q: The mean height of a population of men is 70.8 inches and the standard deviation is 3.2 inches. What…

A:

Q: A vending machine dispenses coffee into an eight ounce cup. The amounts of coffe dispensed into the…

A: The amounts of coffee dispensed into the cup follow normal distribution with standard deviation 0.03…

Q: Suppose that an accounting firm does a study to determine the time needed to complete one person's…

A: The survey randomly selects 175 people.

Q: 19.62 of 24 pts Question Help v To compare the dry braking distances from 30 to 0 miles per hour for…

A: Claim is option b i.e mean braking distance is different  for the two makes of machines .

Q: Calculate z scores from two samples "he tallest living man at one time had a height of 252 cm. The…

A: Given data,Mean is μ=170.25sd is     σ=8.47

Q: Suppose the standard deviation of the sample mean is equal to 0.6. If a sample of size n=100n=100 is…

A: Given, Sample standard deviation of mean = 0.6 Sample size =100 Population standard deviation is…

Q: In a population, the data value 180 has a z score of -0.8. The standard deviation of this population…

A: The question is about z score.Given :Raw value ( x ) = 180z score = -0.8Standard deviation of the…

Q: If the mean score on a math quiz is 12.6 and 38.2​% of the students in your class scored between…

A: Mean = 12.6 area between 11.1 and 14.1 is 38.2%

Q: An outbreak of the deadly Ebola virus in 2002 and 2003 killed 91 of the 95 gorillas in 7 home ranges…

A: We need to obtain the means, standard deviations, and correlation coefficient between Distance, x,…

Q: Calculate the standard deviation of the data.

A: The given data is as follows:…

Q: The serum cholesterol levels for men in one age group are normally distributed with a mean of 178.1…

A: Given, serum cholesterol level follows normal distribution with mean 178.1 and standard deviation…

Q: The president of a college wants to determine the mean number of units that college students take…

A: From the given information, the population standard deviation is 2.1 units, the confidence level is…

Q: a) Find a 90% confidence interval estimate for the mean college football score if a sample of 100…

A: a) Given data, σ=6n=100x=46z-value at 90% confidence is Zc=1.645

Q: The average life span of one particular brand of refrigerator is 12 years with a standard deviation…

A: As per our guidelines we are supposed to answer one question kindly post the remaining questions in…

Q: Calculate the standard deviation of the data shown. X 29.2 14.3 5.4 7.6 19.3 14.4 Round your answers…

A: x x2 29.2 852.64 14.3 204.49 5.4 29.16 7.6 57.76 19.3 372.49 14.4 207.36 --- ---…

Q: A population of scores has a mean of 56. In this population, a raw score of 40 corresponds to a z…

A: Given Information: A population of scores has a mean of 56. μ=56 Raw score X = 40 corresponds to a z…

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.