2. How is the sample size related to the deviation?
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Q: How do I find the Standard Deviation and Sample Mean?
A: From the provided information, The sample mean of the data can be obtained as:
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- Part C. Compute the sample mean and sample deviation.In simple terms that a normal person can understand. What is population deviation and sample diviation? If population deviation is greater than sample deviation, what does it mean? Pls. In simple termsHow does the sample size affect how close to normal a distribution of either sample means or sample pro-portions will be? What are the means and standard deviations of the distributions in each case?
- if you have a population standard deviation of 19 and a sample size of 4, what is your standard error of the mean?D. Tell whether the distribution has a small or large variance E. Compute the actual variance and standard deviationAn article in a local town newspaper discusses the results of state test scores in their town. The reporter headlines, "The students in this town don't have the necessary skills. The overall student population is less than what is reported at the state level" The state test says that a score of 261 or higher on its test reflects the student has the skills needed to graduate. A local town newspaper conducted a random sample of 200 students and found the mean to be 257 and a standard deviation of 41 points. a. State the null (H0) and alternative (Ha) hypotheses. b. Give the standard score for the data. c. Find the P-value for this significance test. e. Sketch your results on the standard Normal distribution f. Summarize the conclusion in the context of this problem.
- Why is obtaining the mean and standard deviation of xa first step in approximating the sampling distribution of the sample mean by a normal distribution?Consider the following data: −10, −10, 0, 3, −10, 3, 3 Step 1 of 3: Calculate the value of the sample Variance. Round your answer to one decimal place. Step 2 of 3: Calculate the value of the sample deviation. Round your answer to one decimal place. Step 3 of 3: Calculate the value of the range.For a large Internet seller their average customer spent $51.28 during the Black Friday sale with a standard deviation of $9.53 if a sampling distribution is created for samples of 75 customers what would the mean and standard deviation of the sampling distribution of the sample means
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