If a =0.10, what is the confidence level of a statistical test?
The relationship between alpha(significance level) and confidence level is given by:
Confidence level + alpha = 1
> Confidence level + 0.10 = 1
> Confidence level = 0.90
Hence the confidence level of statistical test is 0.90
Conduct a statistical test at a significance level of 0.05 to determine if there is an association between gender and movie preference. The chart of observed counts has been re-copied here for convenience. Male Female Total Action 52 24 76 Drama 32 32 64 Comedy 20 16 36 Animated 16 8 24 Total 120 80 200 Answer in the blanks to show the work associated with exploring this claim. Blank #1: The statistical test to determine whether there is an...
4. Perform the following postulates using the appropriate hypothesis test: Use a = 0.10 (level of significance) a. Is there statistical evidence that the average of Plant # 1 is less than Plant2, µ1 <H2? b. Estimate a confidence interval of 90% for the true value of the difference between averages 4. Realice las siguientes postulados utilizando, la prueba de hipótesis apropiada: Use a = 0.10 (nivel de significación) Planta#1 Xbarra= 6 S, 2 |N, -30 Planta#2 Xbarra 8 S...
Before beginning a hypothesis test, an analyst specified a significance level of 0.10. Which of the following is true? There is a 90% chance that the alternative hypothesis is true. There is a 90% chance that the confidence interval will include the true mean of the population. There is a 10% chance of rejecting the null hypothesis when it is actually true. There is a 90% chance of rejecting the null hypothesis when it is actually false.
how to determine what confidence level to use when constructing a confidence interval for a 2 sample t test?
I conduct a statistical test of hypotheses and find statistical significance (reject Ho) at level α = 0.01. I may conclude that A. Ho must also be rejected at a = 0.001. B. Ho must also be rejected at α = 0.05. C. Both A and B are true D. Neither A nor B is true
I conduct a statistical test of hypotheses and find statistical significance (reject Ho) at level α = 0.01. I may conclude that A. Ho must also be rejected at α = 0.001. B. Ho must also be rejected at α = 0.05. C. Both A and B are true D. Neither A nor B is true
. When we carry out a statistical test with significance level α = 5%, the probability of rejecting the null hypothesis when it is true is 5%. Suppose that we independently select 5 random samples of size 100, and for each sample carry out the same statistical test with significance level 5%. We know that the null hypothesis is true. What is the probability that we reject the null hypothesis at most once out of the 5 tests? (a) 0.02...
You wish to test the following claim (H) at a significance level of a = 0.10. Hou = 65.5 H: < 65.5 You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n = 16 with a mean of ä = 57.2 and a standard deviation of s = 11.9. What is the critical value for this test? (Report answer accurate to three decimal places.) critical value = Submit
1. Construct a confidence interval for P1-P2 at the given level of confidence. X7 = 29, n = 251, x2 = 33, n2 = 300, 90% confidence 2. | Sample 1 10 Sample 2 10 n X 17.4 Assume that both populations are normally distributed a) Test whether M7 * H2 at the a = 0.10 level of significance for the given sample data. b) Construct a 90% confidence interval about 11-12 19.1 3.9
in a statistical test of hypothesis we say the redults are statistically signifficant at level a if: A. a=.05 B. a is small C. the p value is less than or equal to a D. the p value is larger than a E. Absolute value of the test statistic is very small