A study of life expectancy showed that a random sample of 6 states had a standard deviation of 0.8 deaths per year. Find the 95% confidence intervals of the variance and standard deviation. Assume the variable is normally distributed. Use the chi-square distribution table to find any chi-square values to three decimal places. Round your final answers to one decimal place.

Q: The number of goals scored by a college soccer team for a given season are 4, 9, 0, 1, 3, 12, 3, 7,…

A: The population mean is, μ=∑xN=4+9+0+1+3+12+3+7+4+5+8+212=5812=4.8333 The population mean is 4.8333.

Q: a successful basketball player has a height of 6 feet 9 inches, or 206 cm. Based on statistics from…

A: Given,           Z -score=4.45           A basket ball player has a height of  6 feet 9…

Q: Students pass a test if they score 50% or more. The marks of a large number of students were sampled…

A: Given information- Population mean, µ = 42% Population standard deviation, σ = 8% We have given that…

Q: Use the magnitudes (Richter scale) of the 120 earthquakes listed in the accompanying data table. Use…

A: Given Information:- 3.28 2.80 2.84 1.95 1.68 2.51 2.44 3.45 3.94 1.60 2.88 1.62 2.59 3.96 2.49 2.42…

Q: Find the mean, variance, and standard deviation for the number of heads when 13 coins are tossed.…

A: Given :  This is a binomial experiment n = 13 p is the probability of success that means getting…

Q: 2. Suppose that a continuous random variable X has PDF f(x) = }7 (1 – x²) -1<x<1 else

A:

Q: Day Sunday Monday Tuesday Wednesday Thursday Friday Saturday Expenditure $4.85 $5.10 $5.50 $4.75…

A: Given :- Lucas recorded his lunch expenditure  each day for one week.

Q: Find the standard deviation if the mean = 2, mode = 5, variance = 56 . Round your answer to three…

A: We have given that,  Mean (x̄) = 2 , mode (z) = 5 and variance        (s^2) = 56 Then,  We will find…

Q: Find the mean, variance and standard deviation. round all answers to on decimal place.

A: The mean of the variable X obtained as given below: Here, X denote the observation.

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 7.2…

A:

Q: onsider this data set { 9, 3, 8, 8, 9, 8, 9, 18}. Find the standard deviation, s. Round off your…

A: given data, 9,3,8,8,9,8,9,18we have to find out the standard deviation(s) for the given data. x…

Q: 2. A random sample of size 4 is taken with replacement from a population with u = 12 and a? = 8

A:

Q: Calculate the mean and median of the data. Find the standard deviation and coefficient of variation…

A: As per our guidelines we can solve first three subpart and rest can be reposted. Solution-: Our aim…

Q: A successful basket ball player has a height of 6 feet 4 inches. Based on statistics his height…

A: As given, The basketball player has a height of 6 feet 4 inches and when his height is converted to…

Q: Roll a pair of die 36 times, and draw a bar graph of all the outcomes. Using the data, find the…

A: In question,  Given that a pair of dice is rolled 36 times. Then we'll find mean Variance and…

Q: A statistics professor gives a survey to each of the 100 students in an introductory statistics…

A: Obtain the population standard deviation:

Q: Find the mean, variance and standard deviation. round all answers to on decimal place.

A: Solution: Suppose two dice rolled. Then, the sample space is Let X be the sum shown on the two…

Q: Find the mean, variance and standard deviation. round all answers to on decimal place

A:

Q: With the extra data value,  the range, standard deviation, and variance is?

A: Given data: 3.31 2.79 2.83 1.97 1.69 2.54 2.46 3.44 3.93 1.59 2.86 1.61 2.57 4.02 2.49 2.42…

Q: unts how many meteors she se

A:

Q: The amount of snowfall falling in a certain mountain range is normally distributed with a mean of 80…

A:

Q: Jse the magnitudes (Richter scale) of the 120 earthquakes listed in t another value, 8.00, is added…

A: The formula for computing range is, Range= max- min Max is the highest value in the data set Min the…

Q: Assume that a randomly selected subject is given a bone density test. Bone density test scores are…

A: Given that,The bone density test scores are normally distributed.The mean  is 0.The standard…

Q: Find the mean, variance and standard deviation. round all answers to on decimal place.

A:

Q: Find the mean and standard deviation of the original set of data.

A:

Q: Students in a class took a test whose results were normally distributed.  The mean score was an 81…

A: Students in a class took a test whose results were normally distributed.  The mean score was 81 and…

Q: A successful basketball player has a height of 6 feet 4 ​inches, or 193 cm. Based on statistics from…

A:

Q: Find the standard deviation for this data set. if a one goal hockey game was added to this data set,…

A: From the plot representing the number of goals scored per game, there are three games in which three…

Q: Find the variance and standard deviation. Round the variance to two decimal places and standard…

A: Given A binomial experiment has the given number of trials n and the given success probability p.…

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.