What is the relationship between R sqare and p-value?

Q: what is the significance of the equal sign?

A: Explanation of the answer is as follows

Q: nd believes that the number ne caregi Page ome data is provided below: 1 s the score Jords Per Day…

A: According to the  sum, x=17422,sx=3506.492 and y=85 sy=7.176 The correlation between words per day…

Q: Is Va + bequal to Va + Vb?

A: Given:Is a+b  is equal to  a+b  ?

Q: What does r squared measure?

A: R-squared – It is also called coefficient of determination. R-squared is a measure of fitness, it…

Q: Illustrate the Test R2 for significance?

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

Q: A friend tells you that her savings account doubled in 9 years. Use the Rule of 72 to estimate what…

A: Given: Savings account get doubled in 9 years. Rule 72:  An amount will double when the product of…

Q: How did you get p value from hats given?

A: Solution-: We have test statistic=t_{stat}=-2.115 and df=87 We want to find the how to get p-value=?…

Q: Ex. X = 400 Y = 700 Exr = 15, 000 Σε X2 = 16, 229 y2 = 50, 000

A:

Q: What is the standard error of y?  Explain in words and in symbols.

A: If a population with mean µ and standard deviation σ. If random samples with large size are selected…

Q: Help me figure out what is a p-value?

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

Q: What score should Betty expect on average?

A: HERE  rolling A fair dice , so probability of each number (1,2,3,4,5,6) is 1/6

Q: b. What is the​ p-value?

A: From the obtained results, the test statistic value is -2.00 and the test is two-tailed.

Q: What is the missing value for x on the diaaram below

A: Given: Find: x

Q: p-value =

A: Given in the following  Satisfaction ratings of Traditional cell phone providers is denoted by…

Q: Jennifer wants to estimate the percentage of parents that use cloth diapers. She asks a randomly…

A: Solution: It is given that Jennifer wants to estimate the percentage of parents that use cloth…

Q: . What is the p-value?

A: here given  Sample mean  = 24 mph  Sample standard deviation  =  2.2 mph  Sample size  = 14  here…

Q: How did you get the p-value?

A:

Q: What is p value ?

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

Q: The absolute value for the difference between the two ladies z-score is

A: Let , X→N(μ=15.7 , σ=7.43) Since , the Rena's score on the exam is 9 and Sara's score was 25. We…

Q: What is the scale factor?

A:

Q: 3) What were the steps used in measuring the measurable objects? Write in bullet form.

A: Measurement, The process of associating numbers with physical quantities and phenomena. It is…

Q: A researcher would like to know if IQ scores are related to age. Using 10 high school students, he…

A: We have given that  A random sample of size 10 of high school students. Computed r is 0.58 and level…

Q: What is needed to find a p value?

A: In hypothesis test we define the null hypothesis which is tested for possible rejection under the…

Q: how would i find the point estimate for q?

A: The point estimate for p is,

Q: What is the P value?

A: We have given that  p0=39/(32+39)=0.5493 α=0.05

Q: Consider a test for µ. If the P-value is such that you can reject H0 for α=0.01, can you always…

A: From the given information, Consider, a test for µ. While testing the µ it is already given that the…

Q: The i test to be used has the value:

A:

Q: What is the value of ΣX2 for the scores 2, 4, and 5?

A: The scores are given as 2, 4, and 5.

Q: The mean GPA for a 127 residents of the local apartment complex is 1.6. What is the best point…

A: Assume that the random variable X defines the mean GPA for a randomly selected residents of the…

Q: researchers calculated for their study that the mean difference () = 5.65 and the SE of the Mean…

A: Solution: From the given information, the mean difference is 5.65 and the SE of the mean difference…

Q: WHAT IS THE T-SCORE FOR A SCORE OF 90

A: The normal distribution in the center is generally denser and basically less dense at tails. Two…

Q: d. Find the Inter Quartile Range (IQR) for time spent at the hot springs. Q1: minutes Q3: minutes…

A:

Q: At 95% level of confidence the Z value is 2.575?

A:

Q: What's the p-value?

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

Q: What is p value

A: From the given information, the test statistic value is 13.3289.

Q: b. Use the range rule of thumb to find the values separating results that are significantly low or…

A: b. The minimum and maximum usual values are, μ-2σ,μ+2σ=20-2×3.2,20+2×3.2=20-6.4,20+6.4=13.6,26.4…

Q: You were creating a run chart using non- metric data and found that n_1 for run-ups was 14, and n_2…

A:

Q: z score and p value I have my work above

A: your sample proportions are wrong From given data we have: n1=354+315=669n2=363+272=635x1=354x2=363

Q: For which of the x-values should you NOT attempt to estimate the y because of extrapolation? 20 60…

A: Given Information: From the given graph, the data points are, 9,1,41,3,55,4,69,5,75,5,83,6

Q: What is the standard error for the difference between the two means

A: here from given information  For Private  sample mean = x¯  = 42.5  s2x = 48.7 nx =  10   For pubilc…

Q: What is the scale factor ?

A: Given ,  We have to find scale factor

Q: d. Find the Inter Quartile Range (IQR) for time spent at the hot springs. Q1: minutes Q3: IQR:…

A:

Q: What is the p value ?

A: Note: As per the requirement solving  From the available information, The observed frequency for the…

Q: c. What is the raw score when -0.48 <z< 1.4? d. What is the raw score such that 60% is below it?

A: Given that  μ = 30 , ? = 4.5 Z-score =( x - μ )/?

Q: what is the measure of x?

A:

Q: The educational impact is a criterion for measuring the extent to which the individual applies it in…

A: True

Q: The correlation between the heights ( measured in inches ) of brothers and the heights of their…

A: Solution Given the correlation between the height of  brothers and the heights of their sister is r=…

Q: 4. What is the measure of x?

A: We have to find x

Q: What is the value of ΣX for the scores 2, 5, 3?

A: Given data2,5, 3ΣX = 2+5+3 = 10

Correlation

Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.

Linear Correlation

A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related. 

Regression Analysis

Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.