Statistics

Statistics are usually presented in an attempt to enhance the credibility and reliability of an advice or even an argument. One can see this by paying special attention t...

Null hypothesis Hnull: The Republican candidate George W. Bush will not win the state by winning more than 50% (0.5) of the votes at the 0.10 significance level (p = 0.5)...

Imagine a researcher is interested in examining the psychological impact of principals perceived conflict management style on teachers productivity. In this case, the...

) J F (w) = (m1 m 2 2 2 S 1 + S 2 w represents the direction of the expected line mi and Si represent the mean. ( i = 1, 2 ) represent the i th class of the within-clas...

According to American Statistical Association (2001), Statistics is a branch of mathematics that deals with collection, analysis, interpretation and presentation of quant...

In the statistics presented, a sample of 2258 participants was targeted, but only 2224 can be considered as valid respondents. The participants comprised 1136 females and...

From the Excel Sheet (Table) given above, there was a total of 238 groups of participants (observed households). Out of this number, 119 (50%) were high-income households...

In the year 2014 89.6% of 283.2 million people in the U.S. had health insurance coverage (NationMaster, 2017). The Medicare initiative provides coverage to 36.5% while th...

Since Tstat > Tcritical, we reject the null hypothesis that suggests that average amount mall customers spend on food during a visit did not increase and instead accep...

One of the most important tests in statistics is the correlation test. It is used in checking the association and dependability that exists between two quantitative varia...