a. Is it necessary to apply the finite population correction factor? O Yes O No b. Is the sampling distribution of the sample mean approximately normally distributed? O Yes O No c. Calculate the expected value and the standard eror of the sample mean (Round "expected value" to 2 decimal places and "stendard error" to 4 decimal places.)

Styles Scenario: A students takes the following quiz by taking random guesses. Quiz Instructions: Select the corresponding character to the corresponding number: Question #1: b) b) во c) 55 d) 12 e)56 f) The answer is not included. Question #2: b) b) 81 c) 55 d) 72 e)56 f) The answer is not included Question #3: b) 5 b) B1 ) 5 d) 72 e)65 f) The answer is not included Question #4: a) b) 81 c) 55 d) 72 e)65 f) The answer is not included Question #5: a) b) 11, c) 15, d) 72 e)65 The answer is not included n FoCus HIF 5. 5. 1 1 1 0

Independent random samples from normal populations produced the results shown in the table to the right. Complete parts a through d below. a. Calculate the pooled estimate of o?. (Round to four decimal places as needed.) Sample 1 2.2 1.2 3.3 1.1 2.9 Sample 2 2.9 3.3 2.9 3.4

If x represents a random variable with mean 131 and standard deviation 40, then the standard deviation of the sampling distribution of the means with sample size 100 is 4. O True O False

2. Which of the following are practical ways to assess normality of the residuals? Select all that apply a. Normal probability plots (the R command is qqnorm() b. Anderson-Darling tests. c. Shapiro-Wilks tests. d. Boxplots e. Just ask if they are normal, or, guess, because, who really cares?

If x represents a random variable with mean 137 and standard deviation 16, then the standard deviation of the sampling distribution of the means with sample size 64 is 2. True O False

Q1. Which of these is not a parameter of the population distribution of X? A. Sample Mean of X. B. Variance of X. C. Std. deviation of X. D. The Expected value of X, E(X). O A. A В. Ь О С. с O D. d

If the sample size is 100 and the population standard deviation is 20, then the standard deviation of the sampling distribution for means is 2. O True O False

Distribution of sample means e.

a) Determine the standard deviation (s) of sunflower heights in the test plot which wasnot fertilized and the Pseudo-Standard deviation (PSD) of sunflower heights in the test plotwhich was fertilized. b) Consider the following three statements          A.If the median of X is greater than the mean of X than the distribution of X ispositively skewed.           B.For Normal populations the median and the mean are approximately equal.           C.The median and the Inter-quartile range are measures of variability in apopulation. c) Consider the following three statements          A.The correlation between two positive quantities is always positive.          B.If the correlation between X and Y is negative than the slope of        the regressionline for predicting Y from X is negative.          C.Pearsons correlation coefficient is always between -1 and +1. This is notnecessarily true for Spearmans correlation coefficient