# Aa Aa Tips 4. Factors that influence a hypothesis test Suppose you conduct a hypothesis test...

###### Question:

Aa Aa Tips 4. Factors that influence a hypothesis test Suppose you conduct a hypothesis test about a population mean when the standard deviation is unknown by calculating at statistic and determining whether to reject the null hypothesis. Assume that your statistic is a positive value and that you will reject the null hypothesis when t is very large. For each of the potential changes to the components of your study design or the results listed below, determine the change to the t statistic, and then select "Increases," "Decreases," or "Stays the same" from the dropdown menu in the right-hand column. Tips Unlimited The t statistic red Change in Study Design or Results A decrease in the sample variance (82) A decrease in the obtained difference (M-1) An increase in the sample size (n) A decrease in the significance level (such as using a - .01 instead of a - .05) Options re er a FREE 7.
more. 5. Effect size - Cohen's d and r squared Aa Aa An industrial/organizational psychologist has been consulting with a company that runs weekend job-seeking workshops for the unemployed. He collected data on several issues related to these workshops and, after conducting statistical tests, obtained statistically significant findings. He needs to find a way to evaluate effect size so that he can make recommendations to the company. One of the psychologist's findings is that 1 year after the workshop, a sample of 36 job seekers who received training on resume writing scored an average of 7.3 as measured on a 9-point job-search motivation scale, with a standard deviation of 1.5. The typical job seeker scores 6.1 points. The psychologist finds that the estimated Cohen's dis , the t statistic is 4.80, and r2 is Using Cohen's d and Cohen's guidelines for interpreting the effect size with the estimated Cohen's d, there is a treatment effect. Using r2 and the extension of Cohen's guidelines for interpreting the effect size using r2, there is a treatment effect. (Hint: When using Cohen's guidelines for interpreting the effect size, if the value lies between two categories, then specify the range covered by both categories, for example, medium to large.) Another one of the psychologist's findings is that a sample of 121 job seekers who received training on dressing for interviews worked an average of 6.1 hours per week, with a standard deviation of 1.2. The typical job seeker works 5.7 hours. He finds that the estimated Cohen's dis the t statistic is 3.64, and r2 is Using Cohen's d and Cohen's guidelines for interpreting the effect size with the estimated Cohen's d, there is a treatment effect. Using r2 and the extension of Cohen's guidelines for interpreting the effect size with r2, there is a treatment effect.

#### Similar Solved Questions

##### Show your work Count the number of operations and the big-O time complexity in the worst-case...
Show your work Count the number of operations and the big-O time complexity in the worst-case and best-case for the following code int small for ( i n t i = 0 ; i < n ; i ++) { i f ( a [ i ] < a [ 0 ] ) { small = a [ i ] ; } } Show Work Calculate the Big-O time complexity for the following cod...
##### A wave on a string has an amplitude of 0.567 mm and is propagating with a...
A wave on a string has an amplitude of 0.567 mm and is propagating with a speed of 15.0 m/s in the positive x direction. If the frequency of the wave is 42.0 Hz, what is the speed of the string at x = 1.25 cm and t= 0.0625 s? (Hint: not looking for a wave speed)...
##### How do you simplify  \frac { ( 4- 3i ) ( 4+ 3i ) } { 3- 4i }?
How do you simplify  \frac { ( 4- 3i ) ( 4+ 3i ) } { 3- 4i }?...
##### Below are the ages of 20 winners of the Acadeiny Award for Best Actor and Best...
Below are the ages of 20 winners of the Acadeiny Award for Best Actor and Best Actress. Best Actor: 42 54 52 37 38 60 32 45 60 32 45 60 46 40 36 50 47 29 43 37 Best Actress: 32 4 1 33 31 74 33 32 22 49 61 21 41 26 33 44 80 42 29 33 4) Create a back to back stem and leaf plot. TABLE 2. Back to back s...
##### Estimate (using right endpoints) the given integral?
Estimate (using right endpoints) the given integral int_a^bf(x)dx by using a Reiman Sum? int_1^3dx/x...
##### Q) A proton's speed as it passes point A is 3.00×104 m/s . It follows the...
Q) A proton's speed as it passes point A is 3.00×104 m/s . It follows the trajectory shown in the figure. (Figure 1) What is the proton's speed at point B? Express your answer with the appropriate units. Figure 1 of 1 Br 30V 10 V -10 V...
##### 2. Warden Inc. uses a job-order costing system in which any underapplied or overapplied overhead is...
2. Warden Inc. uses a job-order costing system in which any underapplied or overapplied overhead is closed out to cost of goods sold at the end of the month. The company's cost of goods manufactured for March was \$152,000 and its beginning and ending inventories were: Inventories: Beginning Endi...
##### What is the number of oxygen atoms in Al_2(SO_4)_3?
What is the number of oxygen atoms in Al_2(SO_4)_3?...
##### Question 26 Which of the following would NOT shift the labor demand curve for bakers? An...
Question 26 Which of the following would NOT shift the labor demand curve for bakers? An increase in the quantity of capital and land used in the bakery A decrease in the number of people willing to work in a bakery New technology that makes bakers more efficient A decrease in the price baked goods ...
##### [-/10 Points] DETAILS SCALCET8 11.2.043. Determine whether the series is convergent or divergent by expressing sn...
[-/10 Points] DETAILS SCALCET8 11.2.043. Determine whether the series is convergent or divergent by expressing sn as a telescoping sum (as in Example 8). 00 6 2.1 n5 convergent divergent If it is convergent, find its sum. (If the quantity diverges, enter DIVERGES.)...
##### What problem would attend failure to mark the position of the solvent front on the TLC...
What problem would attend failure to mark the position of the solvent front on the TLC plate immediately after developing the plate?...