A researcher would like to know if a vegan diet will lower cholesterol. A sample of n = 9 adults is obtained, and each has their cholesterol levels measured. Each participant then goes on a strict vegan diet for the next 45 days and cholesterol levels are measured again after that. Average total cholesterol dropped by MD = 14 points after the vegan diet with SS = 1152 for the difference scores. 1. What is the sample standard deviation?  Report to one decimal. 2. What is the value for the estimated standard error? Report to one decimal. 3. What if the observed t value from the example above?  Answer to two decimals. 4. How many degrees of freedom are in the current study?  Report a whole number no dec

Q: Molly's score was 68 on a test with a mean of 80 and a standard deviation of 9.  What is her…

A:

Q: In a sample of 152 people the average score was 74 with a standard deviation of 6. What is the…

A: Sample size = n = 152   Mean = 74  Standard deviation = 6

Q: Find the sample standard deviation.

A: Given that:n= 12  Sample size

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A: Standard deviation of sample is given by

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Q: 5.) If you choose 50 companies, what is the probability that the percent gain of the company is…

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A: Consider X is a random variable defined as the height of a successful basketball player.The provided…

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A: Formula : Z =(X - μ)/σ

Q: You are are running some stats on final game scores during March Madness games. The 16 teams that…

A: given data μ = 70.8σ = 12.4x = 80z = ?

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Q: Consider the 5 numbers: 12, 5, 8, 12, 18. Which of the following is FALSE? The standard deviation is…

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Q: Use z scores to compare the given values.   The tallest living man at one time had a height of 258…

A: Let X be the tallest living man at one time had a height  Y be the shortest living man at that time…

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A: Percentile:The percentile is the proportion of data lying below a certain value. For example, 56…

Q: Use z scores to compare the given values.   In a recent awards​ ceremony, the age of the winner for…

A: Given : x¯actor = 45.5 sactor = 6.7 xactor = 34 x¯actress = 32.7 sactress = 10.2 xactress = 45 Z = x…

Q: The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 117…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: A standardized test has a pop. mean of 152 and a standard deviation of 16. Molly scores at the 91st…

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Q: se z scores to compare the given values.   In a recent awards​ ceremony, the age of the winner for…

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Q: Your Stat teacher tells you that your test score was at the 2nd quartile for the class. Which is…

A: Quartile 2 is also the median

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Q: b. 7 miles

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A: It is given that the mean is 47,000 and standard deviation is 4,600.

Q: Find the standard deviation for the following data set. ​2, 2,​ 2, 5,​ 5, 6,​ 6, 8,​ 8, 9   A. 2.49…

A:

Q: The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 118…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: Use z scores to compare the given values

A:

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.