For a test of Ho: p=0.50, the sample proportion is 0.43 based on a sample size...
For a test of He: p=0.50, the z test statistic equals 1.02. Use this information to complete parts (a) through (d) below. a. Find the P-value for He: p>0.50. (Round to three decimal places as needed.) b. Find the P-value for H, :p*0.50 (Round to three decimal places as needed.) c. Find the P-value for He:p<0.50. (Hint: The P-values for the two possible one-sided tests must sum to 1.) (Round to three decimal places as needed.) d. Do any of...
A sample mean, sample standard deviation, and sample size are given. Use the one meant test to perform the required hypothesis test about the mean, , of the population from which the sample was drawn. Use the P-value approach. Also, assess the strength of the evidence against the null hypothesis. x-22,298, s=14200, n = 17, HO: P = 30,000, Ha# 30,000 a -0.05. Test statistic: 224. P.value 0.0200. Reject the null hypothesis. There is sufficient evidence to conclude that the...
For a test of population proportion H0: p = 0.50, the z test statistic equals 1.16. Use 3 decimal places. (a) What is the p-value for Ha: p > 0.50? (b) What is the p-value for Ha: p ≠ 0.50? (c) What is the p-value for Ha: p < 0.50? (Hint: The p-values for the two possible one-sided tests must sum to 1.) (d) Which of the p-values give strong evidence against H0? Select all that apply. The p-value in...
Perform the following hypothesis test of a proportion: HO: p = 0.33 HA: p not equal to 0.33 The sample proportion is 0.31 based on a sample size of 100. Use a 10% significance level. A) What is the value of the test statistic? (Give answer rounded to 2 decimals) (be careful to make sure your + or - sign is correct) B) What is the p-value for the problem? C) should the null hypothesis be rejected? YES or NO
To test Ho: p= 100 versus Hy: p + 100, a simple random sample size of n = 19 is obtained from a population that is known to be normally distributed. Answer parts (a)-(d). Click here to view the t-Distribution Area in Right Tail. (a) If x = 105.4 and s = 9.7, compute the test statistic. t= (Round to three decimal places as needed.) (b) If the researcher decides to test this hypothesis at the a= 0.01 level of...
To test Ho: p= 100 versus Hy: p* 100, a simple random sample size of n = 20 is obtained from a population that is known to be normally distributed. Answer parts (a)-(d). Click here to view the t-Distribution Area in Right Tail. (a) If x = 105.4 and s= 9.1, compute the test statistic. (Round to three decimal places as needed.) ta (b) If the researcher decides to test this hypothesis at the a=0.01 level of significance, determine the...
Does a P-value of 0.37 give strong evidence or not especially strong evidence against the null hypothesis? Choose the correct answer below. 0 A. The P-value does not give strong evidence against the O B. The P-value gives strong evidence against the null hypothesis because it is large. The P-value gives strong evidence against the null hypothesis because it is small null hypothesis because it is small. ° C. The P-value does not give strong evidence against the O D....
For a test of H0: p = 0.50, the z test statistic equals 1.04. Use 3 decimal places. (a) What is the p-value for H: p > 0.50? (b) What is the p-value for H: p 0.50? (c) What is the p-value for H: p < 0.50? (Hint: The p-values for the two possible one-sided tests must sum to 1.) (d)Which of the p-values give strong evidence against H0?Select all that apply. 1.The p-value in (a). 2.The p-value in (b)....
Suppose a random sample of 100 observations from a binomial population gives a value of p = 0.45 and you wish to test the null hypothesis that the population parameter p is equal to 0.40 against the alternative hypothesis that p is greater than 0.40. Complete parts a through c. a. Noting that p = 0.45, what does your intuition tell you? Does the value of p appear to contradict the null hypothesis? O A. Yes, because p satisfies Hg:p>0.40...
A random sample of size n= 15 obtained from a population that is normally distributed results in a sample mean of 45.8 and sample standard deviation 12.2. An independent sample of size n = 20 obtained from a population that is normally distributed results in a sample mean of 51.9 and sample standard deviation 14.6. Does this constitute sufficient evidence to conclude that the population means differ at the a = 0.05 level of significance? Click here to view the...