Arithmetic Mean and Correct Answer Essay

So, we should reject the null hypothesis H0. At a 0.05 level of significance level, we conclude that there is a significant difference between the average height for females and the average height for the males.

2. In order to determine the average amount spent in November on Amazon.com a random sample of 144 Amazon accounts were selected. The sample mean amount spent in November was $250 with a standard deviation of $25. Assuming that the population standard deviation is unknown, what is a 95% confidence interval for the population mean amount spent on Amazon.com in November?

(21) You took a sample of size 21 from a normal distribution with a known standard deviation, . In order to find a 90% confidence interval for the mean, You need to find.

Right now, the median price for a home in the area is $450,000. The sales price has risen by $75,000 in just the last year. During the same year, the average price per square foot rose from $224 to $238. Since the sales price has risen by 20 percent in just the last year, right now is a good time to enter the marketplace before prices

12. _____ For a given population, confidence intervals constructed from larger samples tend to be narrower than those constructed from smaller samples. Which statement below best describes why this is true? (A) The variability of the sample mean is less for larger samples. (B) The z-value for larger samples tends to be more accurate. (C) The population variance is larger for large populations. (D) As the sample size increases, the z-value (or t-value) becomes smaller. A machine dispenses potato chips into bags that are advertised as containing one pound of product. To be on the safe side, the machine is supposed to be calibrated to dispense 16.07 ounces per bag, and from long time observation, the distribution of the fill-weights is known to be approximately normal and the process is known to have a standard deviation of 0.15 ounces.

H9: There will be a statistically significant difference between the attitudes of a independent, a republican, and a democrat towards the Aaron Hernandez murder trial (Tested with analysis variance)

There was decline during the recession of the early 1990s, with the price of homes. The average price of homes in the United States remained somewhat stable until June 1997, then began to decline. The Case-Shiller Home Price index almost tripled from 79.91 in June 1997 to 226.38 in March 2006. The National Association of Realtors home affordability index, which relates the medium price of single family homes to the medium family income, fell below the line in the beginning of the first quarter of 2004, and reversed its in the second quarter of 2006.

“Hypothesis testing is a decision-making process for evaluating claims about a population” (Bluman, 2013, p. 398). This process is used to determine if you will accept or reject the hypothesis. The claim is that the bottles contain less than 16 ounces. The null hypothesis is the soda bottles contain 16 ounces. The alternative hypothesis is the bottles contain less than 16 ounces. The significance level will be 0.05. The test method to be used is a t-score. The test statistic is calculated to be -11.24666539 and the P-value is 1.0.  The P-value is the probability of observing a sample statistic as extreme as the test statistic, assuming the null hypothesis is true. The T Crit value is 1.69912702. The calculations show there is enough evidence to support the claim that the soda bottles do

Next the columnist begins a strongly worded evidenced-based approach by discussing the declining percentage of regular smokers. The Editorial begins to bring in numerous sources of evidence such as Anti-Cancer Council data and the survey results of Victorians from 1998 to 2006. This use of scientific statistics shows the reader that The Editorial offers an expertise point of view into the issue and has genuine factual evidence to back up their arguments. This would reassure the reader

Macroeconomics is an excellent tool for the analysis of the housing industry as something like a capital good, as a home is considered to be, cannot easily be studied in a short-term platform. Real estate is a good that costs several times more than an average persons annual income, in the United States that number is typically 7 times as much, and in the United Kingdom that number is 14 times as much. Several factors of both supply and demand directly impact the housing market on a macroeconomic scale. (Business Economics, 1)

We chose 8622 Pine Needle Drive as our best valued home because it either beat the market or every other home across the board when looking at the financial metrics we used to evaluate and compare the different properties. It’s asking price of $285,869 is below the estimated market price of $285,902. The property’s 1-yr Market Value Forecast is approximately $314,063 and would be a 9.8% increase in value over the course of just one year. The 1-yr Zip-Code Average Home Value Forecast for 38139 is 6.2%, so this home is actually forecasted to beat an already impressive market projection by 3.2%. In addition, 8622 Pine Needle Drive is valued approximately 23.1% less than the median 38139 home and 20% less per square foot. From the standpoint of

An estimated 36.5 million or 15.1 % of adults aged 18 years old and older currently smoke cigarettes and more than 16,000,000 have smoking or live with diseases that are related to smoking. According to US department of health and human services, over the past five decades, there is a significant decline in cigarette smoking in the U.S. The progress has slowed in recent years and the prevalence of use of other tobacco products such as vapes, e-cigars and smokeless tobacco

The statistic, which was found by researchers for the CDC's National Health Interview Survey, is consistent with the trend of decline from the past few years. In recent decades, smoking in the United States has dramatically decreased in popularity: in 1965, 42 percent of Americans smoked; in 2013, 18 percent; and in 2014, 17 percent. Since 2009, the number has been decreasing after stagnating for a few years in the mid-2000s.

Ninety-seven percent of the people are property holders. The value of each house on average is $320,000. Around half of people have possessed the same house for over 20 years. Along these lines, these houses have acknowledged incredibly.

A difficult characteristic to understand about the housing market is how a price is given for a particular house. That price will be designated to that particular house alone. All houses have various pricing, so I can’t always assume that one will cost more or less than any other. The pricing for houses vary based on their characteristics. Each characteristic must be analyzed to determine its contribution or detraction toward the price. I have taken some of these characteristics and modeled the relationship between them and the price of real estate for a specific area.