Which of the following formulas is used to calculate thestandard deviation of the sampling distribution of the samplemean (for infinite population) when the population standarddeviation is given?A. 0gN-nC. Oz=N-n%3DVN-1Vn+1V N-1B. 0D. Og =5.

standard deviation of x is referred to as the standard error of the mean

Answered: Which of the following formulas is used…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The age of children in kindergarten on the first day of school is uniformly distributed between 4.95 and 5.87 years old. A first time kindergarten child is selected at random. Round answers to 4 decimal places if possible. a. The mean of this distribution is b. The standard deviation is c. The probability that the the child will be older than 5 years old? d. The probability that the child will be between 5.35 and 5.55 years old is e. If such a child is at the 44th percentile; how old is that child? years old. Question Help: Video 1 C Video 2 e Written Example 1 Message instructor Submit Question Jump to Answer 80 こ。 DD F3 F4 F5 F6 F7 FS %23 $ & 1 3 4 7 8. 9 W E R T Y S K C B M つ

For random samples from an infinite population, whathappens to the standard error of the mean if the samplesize is(a) increased from 30 to 120;(b) increased from 80 to 180;(c) decreased from 450 to 50;(d) decreased from 250 to 40?
The mean is 146 and the standard deviation is 35. A score of 41 is how many z-scores below the mean?
Male BMI Female BMI Given in the table are the BMI statistics for random samples of men and women. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. Use a 0.05 significance level for both parts. H2 48 48 27.9299 7.187829 24.8212 5.688894 a. Test the claim that males and females have the same mean body mass index (BMI). What are the null and alternative hypotheses? OA Ho: H1 =2 O B. Hg: H Z2 OC. Ho: H1 = 42 H >H2 OD. Hg: H #H2 The test statistic, t, is (Round to two decimal places as needed.) The P-value is (Round to three decimal places as needed.) State the conclusion for the test. A. Fail to reject the null hypothesis. There is not sufficient evidence to warrant rejection of the claim that men and women have the same mean BMI. B. Reject the null hypothesis. There is not sufficient evidence to warrant rejection of the…
The age of children in kindergarten on the first day of school is uniformly distributed between 4.88 and 5.72 years old. A first time kindergarten child is selected at random. Round answers to 4 decimal places if possible. a. The mean of this distribution is b. The standard deviation is c. The probability that the the child will be older than 5 years old? d. The probability that the child will be between 5.08 and 5.28 years old is e. If such a child is at the 74th percentile, how old is that child? years old.
Which of the following is true regarding the sampling distribution of the mean for a large sample size? O It has a normal distribution with the same mean and standard deviation as the population. O It has the same shape, mean, and standard deviation as the population. O It has the same shape and mean as the population, but has a smaller standard deviation. O It has a normal distribution with the same mean as the population but with a smaller standard deviation.
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Use the normal distribution of SAT critical reading scores for which the mean is 501501 and the standard deviation is 113113. Assume the variable x is normally distributed. left parenthesis a right parenthesis(a) What percent of the SAT verbal scores are less than 550550? left parenthesis b right parenthesis(b) If 1000 SAT verbal scores are randomly selected, about how many would you expect to be greater than 525525?
For the population proportion is… (select answer) Skewed right Uniform Approximately normal Skewed left With the… (select answer) True population proportion True population mean True population standard deviation As it’s… (select answer) Proportion Mean Standard deviation
The age of children in kindergarten on the first day of school is uniformly distributed between 4.88 and 5.8 years old. A first time kindergarten child is selected at random. Round answers to 4 decimal places if possible. a. The mean of this distribution is b. The standard deviation is c. The probability that the the child will be older than 5 years old? d. The probability that the child will be between 5.38 and 5.58 years old is e. If such a child is at the 40th percentile, how old is that child? years old.
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Which of the following formulas is used to calculate the standard deviation of the sampling distribution of the sample mean (for infinite population) when the population standard deviation is given? 5. N-n A. 0z N-n C. OR Vn+1 N-1 N-1 D. OE B. 0