What are the degrees of freedom and how do you calculate df?

Q: How do I calculate to get this std dev answer?

A: Given Information: Proportion p=0.40 Sample size n=50 Based on the concept of Central limit theorem,…

Q: The percentage of hands that are winning blackjack hands is enter your response here​%

A: Since we have calculated probability of selecting a black jack hand is P(Black Jack hand) = 64/1326…

Q: What is formula for z score?

A: A z-score is a score which is computed to find out the number of standard deviations a value is away…

Q: What means supplementary

A: When sum of two angles are 180° then angles are supplementary angles. Suppose one angle is 70° and…

Q: How to interpret the result according to the table below?

A: # option (NS) correct

Q: What is MSw?

A: Solution Msw=1

Q: Describe about LSD TEST?

A: Post hoc tests: The tests which are used to analyze the differences for all possible pairs of group…

Q: You want to determine whether the gas mileage (in miles per gallon) and the speed that an automobile…

A: Introduction: It is required to identify the most appropriate test for the given research question.

Q: Why does The concept of degrees of freedom introduced?

A: First we define the degrees of freedom .  Degrees of freedom :   It refers to the number of values…

Q: At a birthday party, the menu consisted of burgers, chicken, salad and hotdogs. Approximately 300…

A: Attack rate: The ratio of a population at risk who develops the illness during a defined period of…

Q: What is a? What is the power of the test?

A: Rejection region is that sum of Xi's less than or equal to 4 when the sample size is 4.

Q: uity?

A: We will find the functional value at x=2.

Q: What is mCD?

A: Consider the given figure.

Q: Help me understand how to find the Quartiles

A: Given : data To find: quartiles

Q: What is the value of SX + 1 for the scores 1, 6, 3?

A: The sum of scores is 1+6+3 = 10. That is, SX = 10

Q: What does l’Hospital’s Rule say?

A:

Q: What is the measure of this problem ?

A:

Q: 3. What is the difference between the altitude rule and the leg rule?

A: Difference between leg rule and altitude rule.

Q: What is the Mean difference (d) and the SD of Difference?

A: Enter the values of Millennials and Zoomers in columns A and B of excel.   The sample mean for the…

Q: a sample of size 32 and mean = 40, then the degree of freedom is Answer:

A: It is given that, sample size, n=32 Mean =40

Q: How do I solve for the mean, quartile 1 and 3?

A: To calculate the mean, median, mode, quartile 1 and quartile 2 of the given data, we should first…

Q: Putra College surveyed its students to determine the average weekly time spent surfing the internet.…

A: Population in the set of all outcomes of interest in a study. In real life scenarios studying the…

Q: Explain about why z Test Is Appropriate.

A: The z test is basically a statistical test for testing whether is there any difference between…

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: The effectiveness of a blood-pressure drug is being investigated. How might an experimenter…

A: It is given that the effectiveness of blood-pressure drug is being investigated.

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: Two fuel additives are tested to determine their effect on miles per gallon for passenger cars. Test…

A: State the null and alternative hypothesis: The investigator is specially interested to test whether…

Q: What dp you mean by interpolation?

A: To define: interpolation.

Q: What do you mean by Weighted and Unweighted Means? show the difference by using suitable example?

A: When all the data in a data set have equal weights, the mean is calculated by summing all the values…

Q: Which term describes BD?

A: Given:  To find the line segment BD describes which term in the given option.

Q: What are Degrees of Freedom?

A:

Q: I want to run an additional post hoc test to compare the stats knowledge of first year psychology…

A: Given that to compare the stats knowledge of first year psychology majors before taking the course,…

Q: Ms. Cruz wants to know the average weekly allowance of the grade 10 students. She randomly asked 50…

A: Parameter :  The parameter is a single value and it describe about the whole population.…

Q: What is the degree of freedom?

A: In statistics, the number of degrees of freedom is the number of values that are free to differ in…

Q: What is λ stands for?

A:

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

A:

Q: Before using these mean squares what does we must calculate?

A: Mean squares is nothing but the sum of the squares of the mean of the group   divided by the degrees…

Q: Shark scientists are interested in whether the magnitude of hammer-head shark migration is related…

A: It is given that the, Shark scientists are interested in whether the magnitude of hammer-head shark…

Q: What's the p-value?

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

Q: How do you calculate z-score?

A: Formula to calculate z - score  z = x - μσ

Q: How do we calculate p?

A: Introduction: P-value: The P-value is the probability of obtaining a test statistic value as extreme…

Q: 5. The average cost of mini protein bars is between $30 and $60. What is the range of the number of…

A:

Q: What distinguishes interpolation from other form of approximation?

A: Interpolation is the process of estimating the value of function for any intermediate value on an…

Q: Define three measures one can take to increase the power of an experiment. Explain why your measures…

A: Power: The power of the test is the probability of correctly rejecting the null, H0, when the…

Q: . NCAE shows that the average score of the students is 80 and sd is 15.  What is

A: From the given information, μ=80σ=15

Q: What determines degrees of freedom?

A: Degrees of Freedom :    Degrees of Freedom is the number of values which are free to vary. This…

Q: How do I calculate z score?

A: The z-score describes the position of a raw score in terms of its distance from the mean, when…

Q: what is the scale factor

A: take any of the ordinates of triangle  A ( 2, 2) A' (5 , 5 )

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.