Compute the value of the test statistic. b. use the t distribution table to compute a range for the p-value. c. At α = 0.05 , what is your conclusion? d. what is the rejection rule using the critical value? what is your conclusion?
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H0:μ = 18 Ha:μ ≠ 18
A sample of 48 provided a sample
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- Consider the following hypothesis test : H0:μ =12.5 Ha:μ ‡12.5 **THAT A sample of size 18 provided a sample mean (12.9) and sample standard deviation is (0.8). a-Compute the test statistic. b-Determine the range of p-value from the table of t-distribution? What is the rejection rule ? and what is your conclusion at α=0.01? c-What is the rejection rule ,using critical vale approach? What is your conclusion at α=0.05?Q1/ Consider the following hypothesis test : H0:μ 65 Ha:μ 65 A sample of size 15 provided a sample mean (63) and population standard deviation is (2). a-Compute the test statistic. b-Compute p-value from the table? What is the rejection rule ? and what is your conclusion at α=0.05? c-What is the rejection rule ,using critical vale approach? What is your conclusion at α=0.05? .............................................................................................................................. Q2/ Consider the following hypothesis test : H0:μ =12.5 Ha:μ ‡12.5 A sample of size 18 provided a sample mean (12.9) and sample standard deviation is (0.8). a-Compute the test statistic. b-Determine the range of p-value from the table of t-distribution? What is the rejection rule ?Q1/Consider the following hypothesis test : H0:μ 65 Ha:μ 65 A sample of size 15 provided a sample mean (63) and population standard deviation is (2). a-Compute the test statistic. b-Compute p-value from the table? What is the rejection rule ? and what is your conclusion at α=0.05? c-What is the rejection rule ,using critical vale approach? What is your conclusion at α=0.05? ........................................................................................................................ Q2 /Consider the following hypothesis test : H0:μ =12.5 Ha:μ ‡12.5 A sample of size 18 provided a sample mean (12.9) and sample standard deviation is (0.8). a-Compute the test statistic. b-Determine the range of p-value from the table of t-distribution? What is the rejection rule ?
- Consider the following hypothesis test: H0:μ = 15 Ha:μ ≠ 15 A sample of 50 provided a sample mean of 14.15. The population standard deviation is 3. a. Compute the value of the test statistic. b. what is the p-value? c. At α = 0.05, what is your conclusion? d. what is the rejection rule using the critical value? what is your conclusion?Recently, the annual number of driver deaths per 100,000 for the selected age groups was as follows: Age Number of Driver Deaths per 100,000 16–19 38 20–24 36 25–34 24 35–54 20 55–74 18 75+ 28 Use the 4 steps of hypothesis testing to see if the prediction is significant with a criteria of alpha=.05 on the following data For each age group, pick the midpoint of the interval for the X value. (For the 75+ group, use 80.)Consider the following hypothesis test. H0: ? = 15 Ha: ? ≠ 15 A sample of 58 provided a sample mean x = 14 and a sample standard deviation s = 6.4. (a) Compute the value of the test statistic. (b) Use the t distribution table to compute a range for the p-value. (c) At ? = 0.05, what is your conclusion? (d) What is the rejection rule using the critical value? What is your conclusion?
- Consider the following hypothesis test : H0:μ =12.5 Ha:μ ‡12.5 **THAT A sample of size 18 provided a sample mean (12.9) and sample standard deviation is (0.8). *What is the rejection rule ,using critical vale approach? What is your conclusion at α=0.05?Assume that you have a sample of n1=8, with the sample mean X1=44, and a sample standard deviation of S1=5, and you have an independent sample of n2=14 from another population with a sample mean of X2=30 and the sample standard deviation S2=6. Using a significance level of α=0.025, what is the critical value for a one-tail test of the hypothesis H0: μ1≤ μ2 against the alternative H1: μ1>μ2? The critical value is ______ (Round to two decimal places as needed.)A researcher who wants to know whether the proportion of male births in a hospital is different from the established baseline of 51.07%, would like to test the following hypotheses: Ho:P = 0.51 vs. Ha :P = does not equal 0.51 a) Is the alternative hypothesis upper tail, lower tail, or two tailed? b) What do you conclude if the test results p-value of 0.03 at alpha value = 5% c) What do you conclude if the test results p-value of 0.08 at alpha value = 10%
- In each of the following problems (a) state, the null and the alternative hypothesis (b) compute the test statistic, (c) determine the critical value and sketch the rejection region and the non-rejection region using the normal curve. 1. The cashier of a fast-food restaurant claims that the average amount spent by customers for dinner is Php120.00. A sample of 50 customers over a month was randomly selected, and it was found out that the average amount spent for dinner was Php122.50. Construct the critical regions using a 0.05 level of significance to conclude that the average amount spent by customers is more than Php120.00. Assume that the population standard deviation is Php6.50.Consider the following hypothesis test: H 0 : 15 , H1 : 15A sample of 50 provided a sample mean of 14.15. the population standard deviation is 3.a. compute the value of the test statistic.b. what is the p-value?c. at a = .05, what is your conclusion?d. what is the rejection rule using the critical value? what is your conclusion?A random sample of size 16 from a normal distribution with 0= 3 produced a sample mean of 4.5. a- is the x distribution normal? b-Compute the sample test statistic z under the null hypothesis Ho: u=6.3. c- for H1:u<6.3, estimate the P-value of the test statistic. d-for a level of significance of 0.01 and the hypotheses of parts (b) and (c), do you reject or fail to reject the null hypothesis? Explain.