The test statistic of z=−2.70 is obtained when testing the claim that p<0.420 a. Using a significance level of α=0.05, find the critical value(s). (Round to two decimal places as needed. Use a comma to separate answers as needed.) b. Should we reject H0 or should we fail to reject H0?
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- given H a: u>85 and P=0.007. do you reject or fail to reject H0 at the 0.01 level of significance?The test statistic of z=−2.07 is obtained when testing the claim that p<0.85. a. Using a significance level of α=0.05, find the critical value(s). b. Should we reject H0 or should we fail to reject H0?The test statistic of z equals=−2.49 is obtained when testing the claim that p <0.58. a. Using a significance level of α=0.05,find the critical value(s). b. Should we reject H0 or should we fail to reject H0?
- Use the following data to determine if drug B produces higher creatinine levels than drug A, assume the data is normally distributed. Write out the null and alternative hypothesis in words and symbols. Determine the critical value (use a significance level of 0.05) Calculate the test statistic, and determine if the results are significant or not. *Calculate by hand without using Excel or SPSS Creatinine levels (µmol/L) Drug A Drug B 48.2 52.3 54.6 57.4 58.3 55.6 47.8 53.2 51.4 61.3 52.0 58.0 55.2 59.8 49.1 54.8 49.9 52.6The test statistic z=1.42 is obtained when testing the claim that p>4 a) find the p value B) using a significance level that alpha =0.01, should we reject the null hypothesis or fail to reject the null hypothesisGiven the Data:Test the hypothesis that p(rho)xy is not equal to 0 at the 0.05 level of significance.
- A meal box enterpreneur wants to know how the meal box size (in centimeters) of parents compares to the meal box size of their children. For a sample of seven parents and their children, the value of the test statistic for the Wilcoxon signed-rank test for a matched pairs sample is T = T+ = 27. The differences are calculated as the parent's meal box size subtracted by the child's meal box size. Specify the competing hypothesis to determine if the median difference in meal box size between parents and children is greater than zero. At the 5% significance level, what is the critical value? At the 5% significance level, what is the decision and conclusion?A veterinarian claims that the mean weight of adult German shepherd dogs is 75 pounds. The test statistic is -2.01 when a researcher applied hypothesis test to test a veterinarian's claim at ?=0.05α=0.05. Find the critical value(s) and state the conclusion.Use the calculator displays to the right to make a decision to reject or fail to reject the null hypothesis at a significance level of α=0.10. Z-Test Z-Test Inpt: Data Stats μ≠80 μ0:80 z=−1.18321596 σ:3.75 p=0.23672357 x:79.25 x=79.25 n:35 n=35 μ: ≠μ0 <μ0 >μ0 Calculate Draw Choose the correct answer below. A. Since the P-value is greaterthan α, fail to reject the null hypothesis. B. Since the P-value is lessthan α, reject the null hypothesis. C. Since the P-value is lessthan α, fail to reject the null hypothesis. D. Since the P-value is greaterthan α, reject he null hypothesis.
- The test statistics of z = -1.27 is obtained when testing the claim that μ ≠ 35.4. Use the significance level of α=0.05 to find the critical value(s).A two-sample t-test for a difference in means was conducted to investigate whether there is a statistically significant difference in the average amount of fat found in low-fat yogurt and the average amount of fat found in nonfat yogurt. With all conditions for inference met, the test produced a test statistic of t=2.201 and a p-value of 0.027. Based on the p-value and a significance level of α=0.05, which of the following is the correct conclusion? Reject the null hypothesis because p<α. The difference in the average amount of fat found in low-fat and nonfat yogurt is not statistically significant. A Reject the null hypothesis because p<α. The difference in the average amount of fat found in low-fat and nonfat yogurt is statistically significant. B Fail to reject the null hypothesis because p<α. The difference in the average amount of fat found in low-fat and nonfat yogurt is not statistically significant. C Fail to reject the null…In a test of H0: p = .43 versus Ha: p ≠ .43, a sample of size 1500 leads to a p-value of 0.087. Which of the following must be true if a = 0.05? A. The Ho should be rejected at the 5% level B. The Ho should fail to be rejected at the 5% level C. The Ho should be accepted at the 5% level