If your p-value is less than or equal to the set significance level, the data is considered statistically significant.
Hence here answer to the given question is
D | Question 15 What is one method to determine if a finding is practically significant?...
12 0 89 10 11 12 13 14 15 16 QUESTION 2 Increasing the sample size a. Increases the power of the statistical test Ob. increases the degrees of freedom OC. changes the critical t value to determine significance O d. all of the above QUESTION 3 It is impossible to find a large effect size if your t-test results are not significant. True False QUESTION 4 P = .032 means there is a 3.2% chance the mean differences are...
3. (25 points) To test Ho: σ 0.35 versus H1: σ < 0.35, a random sample of size n = 41 is obtained from a population that is known to be normally distributed a. If the sample standard deviation is determined to be s 0.23, compute the test statistic. (5 pts) b. If the researcher decides to test this hypothesis at the a 0.01 level of significance , determine the critical value. (5 pts) c. Draw a chi-square distribution and...
The one-sample t statistic from a sample of n = 13 observations for the two-sided test of the following hypotheses has the value t 1.49. Hoi 64 H 64 (a) What are the degrees of freedom for t? df = (b) Locate the two critical values t from Table C that bracket t. (Use 3 decimal places.) <t What are the twwo-sided P-values for these two entries? <P-value 1.49 significant at the 10 % level? (d) Is the value t...
Given the linear correlation coefficient r and the sample size n, determine the critical values of r and use your finding to state whether or not the given r represents a significant linear correlation. Use a significance level of 0.05. r =-0.816, n =5 A. Critical values: = +/- 0.878, no significant linear correlation B. Critical values: =0.950, significant linear correlation C. Critical values: = +/- 0.878, significant linear correlation D. Critical values: = +/-0.950, no significant linear correlation
A-D This Question: 1 pt 8 of 10 (8 complete) This QUIZ: 10 pts possible A simple random sample of size n= 15 is drawn from a population that is normally distributed. The sample mean is found to be x = 27.4 and the sample standard deviation is found to be s = 6.3. Determine if the population mean is different from 24 at the a=0.01 level of significance. Complete parts (a) through (d) below. (a) Determine the nul and...
Instruction for Hypothesis Testing (Problems 17-25, Except 24) For One Population: Show your work for finding Test value, Critical value(s), or P-value. For Two Populations: Use your calculator to give the values of Test Value and P-value. O O O O Indicate your parameter Indicate the claim List the given information Then start your five steps. Pay attention to the method, such as Traditional or P- value Put the step numbers inside a box For step (1): Indicate Ho Indicate...
QUESTION 15 Your instructor (Katie) believes that the average time of taking this exam is equal to 140 minutes. A sample of 4 students was taken and the following exam times were obtained. Assume the distribution of the population is normally distributed Sample: 150, 150, 180, 170 (Sample Std. Dev = 15) The value of test statistic is: O a. 3 b.-1.5 OC-3 Od. 15 QUESTION 16 Your instructor (Katie) believes that the average time of taking this exam is...
D Question 6 5 pts What model would you use in a hypothesis test the difference between two means? O t O Chi square OF D l Question 7 5 pts Suppose a glass factor samples 2000 glasses. There are flaws in 75 of them. Find a 95% confidence interval for the true proportion of flaws. O (033,.041) O (0,.0375) O (0356.0393) O (029,.046) Question 8 If the estimated mean from sample is 10, then O is equivalent to the...
Hypothesis Testing Method A = ADKAR Framework (column A) Method B = Prosci Change Management Methodology (column B) Null hypothesis is H0: Method A = Method B Research (Alternative) hypothesis is H1:Method A < Method B Sample size: 30 One-tailed test: Direction stated in the hypothesis is determine more effective (greater or less than). Level of Significance (a): .05 t-test is used because standard deviation of population is unknown, sample size is less than 30 Cutoff Sample Score (critical value)...
D Question 17 0.3 pts What is the critical value za/2 for a 98% level of confidence? (Round to the nearest hundredth) Question 18 0.3 pts What is X2R for a sample of size n-23 at the 95% level of confidence? (Round to the nearest thousandth.) Question 19 0.3 pts What is the margin of error for the confidence interval 0.123 p<.14 thousandth.) 7? (Round to the nearest