To study the effect of temperature on yield in a chemical process, five batches were produced at each of three temperature levels. The results follow. Temperature 50°C 60°C 70°C 33 31 21 23 32 26 35 35 26 38 24 28 31 28 29

Q: The 95th percentile of 6-year-old boys' heights in the United States is 48.8 inches tall.  Explain…

A: Given: The 95th percentile of 6-year-old boys' heights in the United States is 48.8 inches tall.

Q: What is the definition of statistics? Why it is important to learn statistics? Give two major areas…

A: Statistics- Statistics is a subject as a branch of mathematics that is based on describing,…

Q: How do you tell percentiles in a table

A: Percentile is a score that tells the value below which a given percentage of values falls in a table…

Q: •. Find the mean, median, and mode of 9,10,1,2,9,8,-3,9.

A: We have given that the value of some observations are X: 9,10,1,2,9,8,-3,9 Number of observation= 8…

Q: Why should I learn statistics?

A: Statistics helps us to describe and organize data. It also helps us to make inferences from data.

Q: Illustrate the Test R2 for significance?

A: Coefficient of determination: The coefficient of determination (r2) is the percentage of total…

Q: additionally how would you find the: test statistic & p-value

A: The claim is that mean lead concentration is less than 19 μg/g Null hypothesis: H0 : µ=9 μg/g…

Q: Briefly explain three principles you will consider necessary in planning an experiment

A: The three principles considered in planning an experiment are, Replication Randomization Local…

Q: Explain how can we find the corresponding z-score of an area and a percentile.

A:

Q: Explain about Scheffe’s test.

A:

Q: Please no written by hand solution and no img  In a random survey of 40 algebra 1 students at A&M…

A: Number of students who love their math class = 30 Total number of students surveyed = 40

Q: The sample mean of a dataset is 3.8 from 13 observations, calculate the sum of observations.

A: From the provided information, Mean of dataset (x̅) = 3.8 Number of observations (n) = 13

Q: Explain why the mean is more sensitive to outliers/extreme scores compared to the mode and median.

A: We have to check the sensitivity of measures mean, median and mode.

Q: The New York Jets lost their first 8 games of the 2020 NFL season. In those games, they scored the…

A: The data set :-X :- 17, 13, 7, 28, 10, 0, 10, 9

Q: 12. The news release referenced in the previous exercise also included data from independent samples…

A: The test hypotheses are: Null hypothesis: H0: p1 = p2 Alternative hypothesis: Ha: p1 < p2. Test…

Q: How do you create a new scale as a mean score by creating a new variable that adds up all the scores…

A: Mean is generally represented as total sum of all observations divided by number of observations.…

Q: How statistical tests are used?

A:

Q: Which variable is the explanatory variable and which variable is the response variable? ? Explain…

A: Let X be the teen birth rate and Y be the people living in poverty.

Q: What is the main difference between z score and T score?

A: Z Score and T scores are both used in Hypothesis testing.  Z score is used while using z test and T…

Q: True or False: The mean is the same thing as the average

A: Given that Mean is same thing as average

Q: What is statistics and why do you need to use statistics in your research? How important are they?

A: Statistics: Statistics is the branch of mathematics that deals with the collection of data,…

Q: could you please tell me why explain in simple terms why the power of a test matters to the users of…

A: Why power test is matters in statistics?  Having  enough statistical  power is necessary  to draw…

Q: what are the real-life implications of statistics in businesses? give 3 examples

A: The statistics used in all the departments of business activity like sales, purchase, production,…

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: why do we study or use 5 averages in statistics? Elaborate

A: The 5 types of averages we use in statistics are: 1- Arithmetic mean 2-Mode 3- Median 4-Root mean…

Q: What is p value ?

A: The​ P-value is the probability of observing difference in the sample statistic this high or higher…

Q: What are application of statistics and math?

A: Statistics help in providing data as well as tools to analyze the data. Some powerful techniques are…

Q: We use Bar Chartsfor data measured on a continous scale and Histograms for data measured on a…

A: 1) False Bar Charts are used to represent discrete data. They are used to represent the Nominal or…

Q: Explain the sample mean of the difference scores varies.

A:

Q: How do i calculate finding the percentage between two z scores?

A: To find the probability between two z-scores: z-score represents the number of standard deviations…

Q: Name two limitations of this test.

A: Chi Square Test The Chi-square test is a non-parametric type that does not have distribution and is…

Q: P (mean or median) = P (mean) +P(median) – P (mean and median), to find the probability that a…

A: From the given information, The addition rule is, P(mean or median)=P(mean)+P(median)-P(mean and…

Q: Mean, median and mode are descriptive statistics that we often use when answering scientific…

A: Mean (Arithmetic) The mean (or average) is the most popular and well-known measure of central…

Q: on a 100 item test romel got a score of 88 which is the 9th decile what does it mean

A: Di = i * (n + 1)  10 th data

Q: What's the Z score and how is it calculated?

A: We know z-score is used in many fields. But we should know what is the meaning of z-score and how to…

Q: What is the importance of collecting, organizing and presenting data? Minimum of 4 sentences.

A: From the given information we find the solution.

Q: Describe of two examples of data sets for each of the four levels of measurement. Justify your…

A:

Q: Is theory essential to the research process and statistics? Please Explain.

A: Introduction about Theory: Theory can be defined as the idea or concept that has no proof. It could…

Q: explain what is measured by the sign of a z -score and what is measured by its numerical

A: here use basic of standard normal random variable z -score

Q: How do you write a research questionnaire?

A: The objective is to write the steps in a research hypothesis.