A researcher claims that 45% of U.S. adults think that the IRS is not aggressive enough in pursuing people who cheat on their taxes. You believe the true percentage is more than 45%. To test this, you take a simple random sample of 300 U.S. adults and find that 153 of them say the IRS is not aggressive enough. Test at .05 significance. Round to the fourth Ho: P 40 X0 HA: P 40 What's the minimum population size required? 0.95 x o 6000 How many successes were there? 153 Test Statistic: P-value:

Q: What is the z-value and area if score is 70 ?

A: The score is 70

Q: What is the percentage of scores that lie between a z score of -2 and a z score of 1?

A:

Q: what is the difference of fractile and quantile

A: Difference between fractile and quantile:

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

A: Degrees of freedom (df) is a mathematical and a statistical concept.

Q: Find the Score function

A: With respect to the relevant parameter, the score function is a derivative of the log-likelihood…

Q: What is MEAN SQUARE: GENERAL EXPRESSION?

A: Introduction Statistics is a field which involves collection, arrangement and analysis of the data…

Q: whats negative skew?

A:

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: Describe about the Converting a Raw Score to z.

A:

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

A: Degrees of freedom: If certain restrictions are imposed on all the values of sample data then the…

Q: Why t Test Not Appropriate?

A: t Test is the statistical parametric test which is used to compare the means of the population. It…

Q: How to draw line of best fit

A: Line of best fit: It is a straight line in a scatterplot that balances about an equal number of…

Q: Describe about the normal shape of the histogram.

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: Explain what is the LM test and demonstrate it

A: Given information: It is required to state the LM test.

Q: The data is available at Weather in Hamilton in January 2020 (Ontario) - Detailed Weather Forecast…

A: Let us consider the central tendency measures as mean, median and mode: Let us denote X as the…

Q: Calculate the Percentile Rank for a student who becomes fourth (4th) in terms of the GPA categorized…

A: The formula for percentile rank of score is, Percentile rank of score=Number of values below…

Q: what are IQR?

A:

Q: Test Statistic p-value= =

A: The sample size for first population is 34, sample mean is 4.9 and sample standard deviation is 1.7.…

Q: How do I create a histogram in excel?

A: Histogram: A histogram is a graphical representation of the numerical data. Histogram is one graph…

Q: How to estimate distribution

A: Steps to estimate a distribution1) Split the sample space into bins2) Count the no of samples that…

Q: Define most powerful test.

A: Define most powerful test

Q: how do i calculate a z score or find the X-Value and determine if a score is usual or unusual

A: A z-score measures exactly how many standard deviations above or below the mean a data point is.

Q: Define most powerful test.

A:

Average

In mathematics, everyone must have heard the term average in one place or other. Almost all types of calculation require taking out an average. In everyday life, the term is used for denoting a certain amount that can be said to be a typical quantity for multiple people or objects. In other words, if a group of people possesses a certain object, then the average gives us an idea regarding the quantity of the object possessed by each person. However, this is solely based on mathematical calculation. It is important to note that most people will not strictly have the average value in a group.