Consider a study where we set α = 0.01. If we find our p-value to be 0.027, what is our conclusion?
Reject the null
Accept the null
Fail to reject the null
Reject the alternative
Consider a study where we set α = 0.01. If we find our p-value to be...
Find the critical F-value for a one-way ANOVA given: α = 0.01 dfb = 30 dfw = 14 a. 2.72 b. 3.34 c. 4.21 d. 1.98 e. 3.00 In which direction is the F distribution skewed? a. Positively skewed b. Negatively skewed c. No skew If our calculated F is LARGER than our identified critical value from the F-table, what decision would we make about the null hypothesis? a. Reject the null hypothesis b. Fail to reject (i.e., retain) the...
Consider the following null and alternative hypotheses: Ho: p=0.76 versusH1: p≠ 0.76 A random sample of 525 observations taken from this population produced a sample proportion of 0.80. a. If this test is made at a 5% significance level, would you reject the null hypothesis? Use the critical-value approach. Round your answer for z to two decimal places. z(observed)= z critical left= z critical right= We reject/fail to reject null hypothesis b. What is the probability of making a Type...
Many investors and financial analysts believe the Dow Jones Industrial Average (DJIA) gives a good barometer of the overall stock market. On January 31, 2006, 9 of the 30 stocks making up the DJIA increased in price (The Wall Street Journal, February 1, 2006). On the basis of this fact, a financial analyst claims we can assume that 30% of the stocks traded on the New York Stock Exchange (NYSE) went up the same day.A sample of 80 stocks traded...
Which of the following statements is true? I. If the p-value is 0.01, we reject H0 for any alpha level less than 0.01. II. If we use an alpha level of 0.05, then a p-value of 0.005 is not statistically significant. III. If we use an alpha level of 0.05, then we fail to reject the null hypothesis if the p-value is 0.1.
You wish to test the following claim a significance level of α 0.01 Ho:p 0.16 Ha: p 0.16 You obtain a sample of size n 649 in which there are 92 successful observations a. What is the test statistic for this sample? Round to 3 decimal places test statistic b. What is the p-value for this sample? Use Technology Round to 4 decimal places P-value- c. The p-value is... o less than (or equal to) α greater than a d....
Which of the following statements is true? I. If the p-value is 0.01, we reject H0 for any alpha level less than 0.01. II. If we use an alpha level of 0.05, then a p-value of 0.005 is not statistically significant. III. If we use an alpha level of 0.05, then we fail to reject the null hypothesis if the p-value is 0.1. Group of answer choices I only II only III only I and III II and III
1A. With a significance level of 0.05, you observe a p-value of 0.09. What conclusion should you draw? a. Reject the null hypothesis b. Accept the null hypothesis c. Fail to reject the null hypothesis d. Fail to accept the null hypothesis 1B. With a significance level of 0.05, and a p-value of 0.02, what conclusion should you draw? a. Reject the null hypothesis b. Accept the null hypothesis c. Fail to reject the null hypothesis d. Accept the alternative...
A hypothesis test is performed at the α = 0.05 level of significance. The p-value is determined to be 0.03. Therefore, we know that we would _______________. either reject or fail to reject the null hypothesis, depending on the value of the test statistic. reject the null hypothesis know that a 99% confidence interval would contain the value specified in the null hypothesis. fail to reject the null hypothesis
You wish to test the following claim (HaHa) at a significance level of α=0.01α=0.01. For the context of this problem, μd=μ2−μ1μd=μ2-μ1 where the first data set represents a pre-test and the second data set represents a post-test. Ho:μd=0Ho:μd=0 Ha:μd≠0Ha:μd≠0 You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain pre-test and post-test samples for n=19n=19 subjects. The average difference (post - pre) is ¯d=−9.5d¯=-9.5 with a standard deviation of the...
In a study of 784 randomly selected medical malpractice lawsuits, it was found that 47 of them were recorded Use a 0.01 finance level to test them that most medical practice lawsuits are dropped or dismissed Which of the following is the hypothesis test to be conducted? In a study of 784 randomly selected medical malpractice lawsuits, it was found that 479 of them were dropped or dismissed. Use a 0.01 significance level to test the dropped or dismissed. Turu www...