Every 12 hours, 90 parts are randomly sampled and the # of defective parts (out of 90) is recorded. Results from 16 samples follow: Sample Defects 1 3 2 11 3 4 LO 5 6 7 8 9 10 11 12 13 14 15 56 16 LO 2 8 O 9 7 9 3 6 9 10 4 8 5 Total # of defects: 99 total # of observations-90*16= 1440 What is the value of the statistic plotted for sample 2? [go out 4 decimal places]

Q: The test statistic is enter your response here.

A:

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Q: a 33. Given the following data, find frequencies of () the remaining positive classes, and (i)…

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Q: Imagine a researcher wants to determine whether parents differ from each other in their fondness for…

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Q: State two advantages of using a sample statistic rather than a parameter.

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Q: What are three significant pieces of information we need to know to summarize a distribution?

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Q: Could two samples have the same range but different means? Explain.

A: Yes, Two samples have the same range but different means.

Q: How do the Boundaries for the observed sample, Common and Rare Outcomes?

A:

Q: What term is used to explain the natural difference between a sample mean the overall population…

A: What term is used to explain the natural difference between a sample mean the overall population…

Q: Write a simple research question that can be answered with an independent samples

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Q: Why sample covariance and correlation is used for?

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Q: When trying to summarize a set of numerical data, why is giving a measure of center such as the mean…

A: Introduction: A measure of central tendency of data is a measure of the tendency of the values to…

Q: Does the one observed sample mean qualify as a common or a rare outcome? Explain.

A: Sample mean qualify as a common outcome if the difference between the sample mean and the actual or…

Q: the variance of a data set is 144 and mean is 72 then coefficient of variance is

A: Given,variance(σ2)=144mean(x¯)=72

Q: Explain how the sample statistic and the population parameter relate to one another.

A: The objective of this question is to understand the relationship between a sample statistic and a…

Q: A school counselor randomly selects a sample of 30 students to investigate the impact of a behavior…

A: Solution-:A school counselor randomly selects a sample of 30 students to investigate the impact of a…

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Q: Please explain how you got the 9.36 z-score test statistic?

A: Z for difference of proportion is given by,  Z= p1-p2/(S.E.)  SE is standard error which is…

Q: How will you know by using the mean and median to determine if a distribution is normally…

A:

Q: Why are t statistics more variable than z -scores?

A: t-statistics uses sample variance instead of population variance.   t statistics has both s and x̅.

Q: Find the test statistic for the problem?

A: It is given that Sample size n = 450 Number of patients had a successful knee surgery operation, X =…

Q: When do we use a t-statistic instead of a z-statistic to help infer a mean?

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Q: 5. Convert the raw sample values into z-scores, do any of the values standout?

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Q: What  is the first Quartile of the data below: 3    5    3    9    2     9

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Q: what is the  z score of 128,101,116,119,131 when the mean is 119 and variance is 36

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Q: What is the z-score boundary for the bottom 2.5% of the distribution?

A: To find the z-score for the bottom 2.5% of the distribution.

Q: How do you calculate the variance of a set of numbers?

A: Variance is a measure of how spread out a set of numbers is. To calculate the variance: Find the…

Q: State one possible advantage of using paired samples instead of independent samples.

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Q: What are the median, 1st quartile, and 3rd quartile of this data set? The number of pairs of jeans…

A: What are the median, 1st quartile, and 3rd quartile of this data set? The number of pairs of jeans…

Q: Describe why a researcher would use ANOVA. and Design a research idea that would require ANOVA to…

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Q: hat is a percentile and how do we plot them on box and whisker plots?

A: Percentile is the value in statistics which divides the population in two groups. The certain…