how to find that which type of kurtosis is represent by the curve in sample distribution.

Q: However, when they showed their data to a statistics professor, the professor pointed out that…

A: The correct tool for this study would be 2-sample mean (matched pairs) test.

Q: "Asymptotic Normality of an estimator is an extension of the central limit theorem for functions of…

A: INTRODUCTION: Central Limit Theorem :               if x1, x2 , x3, . . . .  . . xn  are…

Q: Illustrate the rejection region

A: For the given hypothesis testing, we  need to illustrate the rejection reguon and test the…

Q: Poly(3-hydroxybutyrate) (PHB), a semicrystalline polymer that is fully biodegradable and…

A: Solution:-  Given data of melting point of 12 specimens   180.6   181.7   180.9    181.7    182.5…

Q: As the sample size decreases, the width of the interval decreases. increases. neither of the above;…

A: It is given that the sample size decreases.

Q: As the sample size increases, the variability among the sample means O a. increases O b. depends…

A: The variability of sample mean is obtained by calculating the standard error. SE=σn where n is the…

Q: Compute for the most appropriate measure of central tendency.

A: Solution-: Given data: 2,2,4,1,4,4,2,3,1,3,3,1,2,4,3,3,2,1,3,2 Compute for the most appropriate…

Q: of size 50 from a population and records the mean of the sample    for a particular variable.  She…

A:

Q: pestation period is 16 days. Suppose you have a sample of 27 Syrian hamsters who were exposed to…

A: probability of getting the t statistic or something can be calculated as follow

Q: The data in the table below presents the hourly quantity of production for three lines of production…

A: a. The null and the alternative hypotheses are,

Q: A quality control engineer at Shell visits 80 gas stations and collects a fuel sample from each. She…

A: Null Hypothesis: H0: The Sulphur content of gas follows Normal distribution with mean 234 and the…

Q: let Yn denote the arandom sample tirst order statistic of from Exponential (e) Find limiting…

A:

Q: A sociologist wants to know the proportion of adults with children under the age of 18 that eat…

A: a. Parameter: The statistical measure that describes the features of the population is termed as a…

Q: A correlation coefficient is computed from a sample of data values selected from a population is…

A: Sampling error is based on sampling standard deviation and sample size

Q: The data from a simple random sample with 25 observations was used to construct the plots given…

A: Critical value  = 0.959

Q: Describe the t test for 2 independent samples.

A: In order to assess whether there is statistical evidence that the related populationmeans are…

Q: Two t-curves have degrees of freedom 10 and 23 respectively. Which one more closesly resembles the…

A:

Q: e simple regression line y=α+βx for th

A: given: x and y to find the regression line

Q: Use the central limit theorem to find the mean and standard error of the mean of the indicated…

A: Hello, Thanks for posting your question here.  I believe that here you're asked to find µx̅  and σx̅…

Q: A set of observations recorded at a time period like 3- yearly, 5 yearly etc. is taken in the method…

A: Given that, A set of observations recorded at a time period like 3- yearly, 5 yearly etc. is taken…

Q: X and Y be standard normal random variables with correlation ρ. Compute the joint and marginal…

A:

Q: In a Statistics examination, the average score was 80 and the variance was 9. Students with scores…

A: Given: Let X denote the scores in Statistics exam. The average scores scored by students are μ=80.…

Q: Regarding Inferential Statistics I can not figure out how to find a critical value.

A: A critical value is a line on a graph that splits the graph into sections. One or two of the…

Q: If x has a normal distribution with mean u=15 and standard deviation o=3, describe the distributin…

A: Given information, μ=15σ=3 Given sample sizes, n=4, n=16, n=100. The sampling distribution for n=4:…

Q: We have found that the Chi-square computed is greater than the Chi-square table value. O The…

A: Chi square test is used to understand the association between the two categorical variable. It is…

Q: Use the central limit theorem to find the mean and standard error of the mean of the indicated…

A: Obtain the sampling distribution of the sample mean. The sampling distribution of the sample mean is…

Q: Since the population size is always larger than the sample size, then the sample statistic can never…

A: Since the population size is always larger than the sample size, then the sample statistic  Sample…

Q: 3. A sample of 25 hens from a normal population showed that the average egg laying is 250 eggs per…

A: Given Data: Sample mean (x¯)=250Sample Variance (s2)=625n=25 H0: μ=285 HA: μ≠285   Under H0:…

Q: The estimated regression line is defined as the straight line that: touches the most points in the…

A: The estimated regression line is used to learn the relationship among two or more variables. The…

Q: The average time in years to get an undergraduate degree in computer science was compared for men…

A: The provided information is The average time in years to get an undergraduate degree in computer…

Q: What is Cramer Rao Lower Bound (CRLB). How can you get the minimum variance unbiased Estimator…

A: Yes, The crammer Rao Lower bound is used to find the minimum variance unbiased estimator.  The…

Q: explain the use of z-test

A: Solution-: Explain the use of z-test?

Q: The data from a simple random sample with 25 observations was used to construct the plots given…

A: Given, Sample size n = 25 Correlation coefficient = 0.943

Q: (a) Determine the mean and variance of the coating thickness. (b) If the coating costs $0.50 per…

A:

Q: the variance of the critical path

A: Given, Task To Tm Tp A 4 5 6 B 5 6 8 C 6 7 9 D 20 23 24 E 15 15 15 F 12 13 16 G 10…

Q: the value used in the equation for the t-test for independent means that approximates the sample…

A: In order to compute the test statistic, it is appropriate to approximate the sample size by…

Q: The average age at which adolescent girls reach their adult height is 16 years. Suppose you have a…

A:

Q: In a lake pollution study, the concentration of lead in the upper sedimentary layer of a lake bottom…

A:

Q: Describe the important characteristics of the variance of a conditional distribution of an error…

A:

Q: What is the approximate sampling distribution of x , the mean water loss of the 34 lizards

A: Given : 34 such lizards were randomly collected Population mean = 3.1 grams and  Population s.d.  =…

Q: A weight-loss program wants to test how well their program is working. The company selects a simple…

A: It is given :  For each individual person, the company records the individual's weight when they…

Q: The average age at which adolescent girls reach their adult height is 16 years. Suppose you have a…

A:

Q: Assume that the helium porosity (in percentage) of coal samples taken from any particular seam is…

A: Formula : * Confidence interval : * Formula for the sample size needed to estimate a…

Q: Let X1, X2, X3,..., X, be a random sample from a distribution with known variance Var(X,) = o?, and…

A:

Q: The average duration of labor from the first contraction to the birth of the baby in women over 35…

A: The required standard error is calculated as: sM=sn=Sample variancen=37.229=1.1326

Q: As the sample size increases, the variability among the sample means O a. decreases O b. depends…

A: As the sample size increases the variability among the sample mean ?

Q: Water availability is of prime importance in the life cycle of most reptiles. To determine the rate…

A: Given that, Mean, mu= 3.1 Standard deviation, s= 0.8 Sample size n= 34  We know that,  Z score=…

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.