Stats
posted by Jason L .
2 samples were collected to determine whether there was a difference between two weight loss methods targeting men. The average weight loss method is provided for the 2 samples along with the respective standard deviations. Is the second method  with an average weight loss of 23 pound better than its competitor (for = .10) Provide the test statistic and critical value.
Chart 
n Avg Stand Dev
27 18 6.4
29 23 8.2
You can probably use a 2sample ttest on your data. Find the critical value using a ttable. Once you calculate the test statistic, compare the test statistic to the critical value. If the test statistic exceeds the critical value, you will reject the null and conclude a difference. If the test statistic does not exceed the critical value, you cannot reject the null.
I hope these few suggestions will help.
Respond to this Question
Similar Questions

Statistics
2 samples were collected to determine whether there was a difference between two weight loss methods targeting men. The average weight loss method is provided for the 2 samples along with the respective standard deviations. Is the … 
Science
A repair shop tested two methods(a & B) of replacing a broken roller. In testing method A, these times in minutes were measured (5 trials), 2,4,9,3,2. In testing methods B, these times in minutes were measured (6 trials), 3,7,5,8,4,3. … 
statistics
. A new diet is claimed to increase the speed of weight loss. A study with a large number of volunteers showed a mean weight loss of 3.5 pounds in a week. A random sample of 8 volunteers followed the diet and recorded their weight … 
statistic
. For each of the following, assume that the two samples are selected from populations with equal means and calculate how much difference should be expected, on average, between the two sample means. a. Each sample has n _ 5 scores … 
stats
Which test should be used one samples t test, independent samples t test or dependent samples t test You may have heard that eating salt can influence people’s weight. Assume that the normal weight of 20yearold females is 150 pounds. … 
stats
Which test should be used one samples t test, independent samples t test or dependent samples t test You may have heard that eating salt can influence people’s weight. Assume that the normal weight of 20yearold females is 150 pounds. … 
Statistics Help !!
Are my answers here correct ? Research questions for z test, t test for independent samples and t test for dependent samples : z test: "An investigator is interested in finding out whether the particular sample of college students 
Statistics
Are my answers here correct ? Research questions for z test, t test for independent samples and t test for dependent samples : z test: "An investigator is interested in finding out whether the particular sample of college students 
Statistics Help !!!!
Are my answers here correct ? Research questions for z test, t test for independent samples and t test for dependent samples : z test: "An investigator is interested in finding out whether the particular sample of college students 
maths
Data were collected on the differences in weight gains of 12 people one month after they stopped smoking, compared with their weight at the time when they stopped smoking. The data are given in Table 2. A positive quantity corresponds …