confidence inferval for the actual percentage of students who want to pursue a college course. Interpret the result.

Q: The median income for a society is the midpoint of all household incomes. Explain?

A: Introduction The median is one of the measures of central tendency.

Q: Comparing Means from Different Populations?

A: Given that, Comparing Means from Different Populations: There are two means from two different…

Q: A researcher collects data from 50 different individuals and wants to understand the correlation…

A: The objective of the question is to determine the degrees of freedom in a correlation analysis…

Q: What percent of data is less than -8%

A: here we can see that shape of curve is bell shaped and symmetric about x = -6 so it is normal…

Q: What does a z-score tell you about a data value?

A: Solution: Let X be the random variable. The z-score is the standardized value of the given data.

Q: When data is normally distributed the mean equals the median True False

A: Normal distribution

Q: Briefly explain what is meant by the term “descriptive statistics”.

A: We have to describe descriptive statistics here

Q: Define the test variable?

A: Introduction A variable is a characteristic that is being tested.

Q: xplain how to use a boxplot show you the measures of center variations, and distribution of data set

A: Box and whisker plot: A type of graph used to display patterns of quantitative data is called a box…

Q: Two individuals a spatial abilities test (mean = 80, std. dev. = 8). One scores a 76 and the scores…

A: From the given information,

Q: What is the formula to find weighted mean.

A: Weighted Mean: A mean in which some values are more important than others.

Q: A negative z-score indicates that the score or value is above the mean. True or False

A: Given: z-score

Q: You like to eat tuna sandwiches. Recently you have noticed that there does not seem to be as much…

A:

Q: The boxplot below shows salaries for CPAS and Actuaries in a town. СРА Actuary 30 40 50 60 70 80 90…

A: We have to interprete given box plots.

Q: Illustrate Interpret significant and non-significant differences?

A: If the p-value is below the provided level of significance, than the null hypothesis would rejected…

Q: There were 49.7 million people with some type of long-lasting condition or disability living in the…

A: We have given that  Sample size n = 1000 Success of probability p= 19.3%=0.193

Q: 3. Researchers interested in determining if there is a relationship between death anxiety and…

A: The question is about correlation.Given :To find :A ) Compute a statistic that shows the…

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

A: Given that Mean is same thing as average

Q: The variable personal desire for aggressive treatment is?

A: Aggression is a typical mental illness. This can be caused because of emotional instability due to…

Q: Researchers conducted a study to understand the effect of gender on statistics anxiety. They believe…

A: Given, we have two samples males and females.

Q: What are the limitations of the mean

A: A.M is a ratio of sum of observations to the number of observations.

Q: The correlation between the average SAT Mathematics score in the states and the percent of high…

A: Here, r = -0.86.

Q: How to determine the number of observation in the model?

A: We are given the output of a multiple model predicting car mileage per gallon (mpg) as a function of…

Q: What is p value ?

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

Q: TRUE OR FALSE  Suppose you wish to use number of views for a video to predict the number of comments…

A: The objective of the question is to understand the concept of response variable in the context of a…

Q: For qualitative data, the mode is the best measure of center. True

A: Given data: For qualitative data, the mode is the best measure of center. Answer: True or false

Q: Is there a significant relationship between academic ability and achievement in Mathematics of Grade…

A: Given n=10 Academic ability  Achievement in math 130 18 125 22 115 16 108 17 104 14…

Q: Describe about Which Level of Significance to choose.

A: The significance level should be selected with close consideration of key factors such as sample…

Q: what the use of Statistics in your life is. How are you going to be benefitted by studying…

A: Statistics is the science which deals with the collecting, classifying, presenting , comparing and…

Q: z-score that is greater

A: we can assume it to be standard normal distribution with mean = 0 standard deviation = 1

Q: 90% confidence

A: n = 130  x= 69  p'=xn=0.5307 p=p' ±Zαp'(1-p')n =0.5307±1.645*0.04377=0.5307±0.07200=(0.458,0.6027)

Q: create a diagram of the situation 81% of college students take online classes, 36% online students…

A:

Q: one percent of grades are greater than what z-score?

A:

Q: The boxplot below shows salaries for CPAS and Actuaries in a town. СРА Actuary 20 30 40 50 60 70 80…

A:

Q: How do you explain the variables of a histogram?

A: Histogram is a visual representation by showing the frequency of data that fall within a specified…

Q: {Narrative: Graduate} The National Collegiate Athletic Association (NCAA) requires colleges to…

A:

Q: Deifne different types of Quantitative data ?

A:

Q: You want to estimate the percentage of statistics students who get grades of C or better. How many…

A: Obtain the sample size. The formula of sample size is, Obtain the area of probability in the right…

Q: What's the p-value?

A: In this case, we need to define the p-value.

Q: How can In-depth interview help a researcher obtain a data from you?

A: Interviews are used to collect data across all educational research fields. There are different…

Q: In a study, researchers wanted to measure the effect of alcohol on the hippocampal region, the…

A: Given,   Sample size = 12 Sample mean = 8.17 Sample standard deviation = 0.8 Population mean = 9.02…