# Essays Tagged: *"Null hypothesis"*

#### Hypothesis testing of the observation ablities/differences of males/females

d based on**hypothesis** testing. The following **hypothesis** was established as thecriterion for the test:**Null** **hypothesis** (Ho) :Males and females do not have different observational abilitiesAlternative Hyp ...

Subjects: Social Science Essays > Psychology

#### Psychology essay notes

" Psychology Take Home Midterm "A. The null **hypothesis** for this experiment is whether the subjects fall asleep while using Melatonin faster ... ous variables, experimenters use alpha in their process of deciding whether to reject or retain the null **hypothesis**. I would set the Alpha in this experiment at (.05).D. Independent Variable: the vari ... medication. So this supports the criteria. This will show if Melatonin really works.L. I reject the null **hypothesis** because the researchers do not even know who will receive the treatment. They joined ...

Subjects: Literature Research Papers

#### Investigation in to the effect of caffeine concentrations on daphnia heart rate.

uted sets of dataT-test allows us to assign a probability level to describe the likelihood that the null **hypothesis** is true.This photo labels where the parts you should look out for in the daphniaResu ... s true.This photo labels where the parts you should look out for in the daphniaResults of experiment**Null** **hypothesis**·There will be no significant effect on the heart rate of the daphnia as the c ...

Subjects: Science Essays > Biology > Human Biology

#### Correlation analysis

e of a population parameter. Alternative **hypothesis** is the **hypothesis** that we try to establish, and null **hypothesis** is "opposite" of the alternative **hypothesis**.Statistics brings its features into diff ... we develop here assumes that the price of security is influenced by the indicator, at the same time null **hypothesis** is the opposite - the absence of indicator's influence over the price of security.Co ...

Subjects: Science Essays > Mathematics

#### Hypothesis Testing

AbstractAfter carefully reviewing our previous research study, including the null and alternative **hypothesis** statements and their related data and its results, we noted an omiss ... figures: the new Atkins' cost is $281.38 and our traditional American diet remains at $162.77. Our null **hypothesis** states that by switching from a traditional American diet, a family will incur an ad ... an additional increase of at least twenty percent in food costs. This increase would mean that our null **hypothesis** is H0: 20%. We had anticipated that our research would support our decision not to r ...

Subjects: Science Essays

#### Five Step Hypothesis Testing Paper - National Average Gas Price

gas price of $2.297 by using a 5 Step Hypothesis testing technique. The testing will begin with our null and alternate **hypothesis** statements. Second, we will determine the level of significance or pro ... sis statements. Second, we will determine the level of significance or probability of rejecting the null **hypothesis** when it is true (Lind, Marchal, Wathwn, 2004). Third we will select a test statistic ...

Subjects: Businesss Research Papers > Case Studies

#### ANOVA and Nonparametric Tests

.The outcome was that the test statistic lies outside the acceptance area and you should reject the null **hypothesis**. As a result, you cannot presume that the population has a normal distribution; you ... s for the row, column, and the interaction are greater that the F critical. That indicates that the null hypotheses for schedule variance, number of defects, and the interaction effect between the two ...

Subjects: Science Essays > Mathematics

#### Hypothesis Testing (Gas Prices)

n accepted **hypothesis** that the gas prices in Florida are in fact cheaper by one penny rather than a null **hypothesis** that prices in the two states are the same.ProcedureAs in any **hypothesis** test, the p ... the two states are the same.ProcedureAs in any **hypothesis** test, the procedure begins by identifying null and alternate **hypothesis** statements. Next, Team C determines the level of significance or proba ...

Subjects: Social Science Essays > Economics

#### ANOVA paper

the researcher must take to perform the ANOVA test is to make a **hypothesis** statement. The must be a null **hypothesis** and an alternative **hypothesis**. The null **hypothesis** is designated as Ho. The null hyp ... ain an equality. Most of the time, researchers conduct tests will the anticipation of rejecting the null **hypothesis**. The alternative **hypothesis** is designated as H1. This **hypothesis** shows what will be ...

Subjects: Businesss Research Papers > Case Studies

#### Yeast And Different Carbohydrate Substrates

I will use, Glucose will produce the highest volume of Carbon Dioxide at every five-minute interval.**Null** Hypothesis.The null **hypothesis** that I am composing is that "" the five carbohydrate substrates ... atoms (in the substrate) played a key role in the production of the Carbon Dioxide.In addition, the null **hypothesis** that was brought into the investigation was not exactly incorrect but it was inaccur ...

Subjects: Science Essays > Biology

#### Hypothesis Article Identification Analysis

ll satisfaction/dissatisfaction in these areas" (Williams, 1994). Each area was then divided into a null **hypothesis** and an alternate **hypothesis**. The null **hypothesis** focuses on a statement about the po ... a statement about the population while the alternate **hypothesis** is the statement accepted when the null **hypothesis** is rejected. The null **hypothesis** in this research study focused on proving or dispro ...

Subjects: Businesss Research Papers

#### Turn Over Rate For The Texas Retail Industry

t of money training new employees. The mean turnover rate for the Texas retail industry is 13%. The null **hypothesis** is the turnover rate for the Texas retail industry is 13%. The alternate **hypothesis** ... of Numerical and Verbal HypothesisHo: μ = 13 %H1: μ ≠ 13 %Level of significance, a=.01The null **hypothesis** is the mean is not different from 13%, but equals to 13%. The alternate **hypothesis** i ...

Subjects: Businesss Research Papers > Management > Management Planning & Decision Making

#### Advanced Hypothesis Paper

04). The **hypothesis** suggested that in recent years the suicide rate has increased dramatically. The **Null** **hypothesis** would suggest there is no significant increase only more awareness of the situation. ... nificant increase only more awareness of the situation. The final ANOVA analysis indicates that the null **hypothesis** should not be rejected because there was not significant change, nor could the resea ...

Subjects: Humanities Essays > Health & Medicine

#### Hypothesis Identification Analysis

The **hypothesis** of the study states Americans spend more than they earn (Retirement, 2005).Only the null **hypothesis** is stated in the article. An alternative **hypothesis** could be written to state Americ ... ection of less than; therefore, the test would be a one-tailed test of significance. In testing the null and alternative **hypothesis**, they are considered to be mutually exclusive. Americans cannot both ...

Subjects: Businesss Research Papers > Management

#### Prescription stats

generic medications in 2003.Variables n = 307 = = 0.329 a = 0.05 po = 0.41 Step 1: **Null** and Alternative Hypothesis The null **hypothesis** is the tested sample proportion being equal or l ... tep 3: Decision Rule We are testing at a significance level of 0.05, which means that we reject the null **hypothesis** if the computed value of Z* is greater than 1.645. Because -2.886 is less than 1.645 ...

Subjects: Social Science Essays > Controversial Issues > Drugs & Alchohol

#### How to Do a One Tailed T-Test in Statistics

In this paper I am going to perform a one-tailed, one-sample t¬-test in order to test the null **hypothesis** that the average number of ounces of cereal per box equals sixteen. A manufacturer o ... 4 being the highest weight of the cereal. I then used the one-tailed, one-sample t test to test the null **hypothesis** that the average number of ounces of cereal per box equals sixteen.After completing ...

Subjects: Science Essays > Chemistry

#### Real Estate

e if house prices are directly related to the number of bedrooms in a house. In this experiment the null **hypothesis** is that houses with 3 or more bedrooms sell for more than houses with 2 bedrooms. Th ... andard deviation of $43,612. Based on a 95% confidence interval and a population sample of 105, the null **hypothesis** will be rejected if the calculated t-value is greater than 1.984 and is therefore, t ...

Subjects: Businesss Research Papers > Management

#### Nonparametric Hypothesis Testing

ed by Wages and Wage Earners Data Set (2008). The ANOVA test results failed to reject the following null **hypothesis**: Ho = Employees in the manufacturing field, who hold clerical, management, or sales ... in other industries.This week, Team B will conduct further research to provide more testing on the null **hypothesis** by conducting a nonparametric **hypothesis** test. If a null **hypothesis** is not rejected ...

Subjects: Businesss Research Papers > Marketing

#### Wages for the Ages – Nonparametric Hypothesis Testing

s ages 18-40?The Parametric CounterpartIn the assignment for week three Team A failed to reject the null **hypothesis**: Wage earners ages 18-40 earn the same pay as wage earners ages 41-65. The significa ... excel data analysis z-test. Comparing the z-statistic with the critical value will determine if the null **hypothesis** will be rejected or fail to be rejected. If the z-statistic does not fall in the rej ...

Subjects: Businesss Research Papers > Marketing

#### Nonparametric Hypothesis Testing Paper week 4

a relationship between chosen occupation and earnings?Numerical and Verbal HypothesisTeam C抯 null **hypothesis** is that the mean annual income of individuals with educational attainment beyond 12 ... Mann-Whitney Test, one of the most powerful nonparametric tests for comparing two populations. The null **hypothesis** will test the two populations to see if they have identical means against the altern ...

Subjects: Businesss Research Papers > Marketing