The test statistic of z=−2.85 is obtained when testing the claim that p=1/2. 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?
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- The test statistic of z = - 3.36 is obtained when testing the claim that p< 0.41. a. Using a significance level of a= 0.05, find the critical value(s). b. Should we reject Ho or should we fail to reject Ho?The test statistic of z=2.29 is obtained when testing the claim that p≠0.418. a. Find the P-value. Using a significance level of α=0.10, should we reject H0 or should we fail to reject H0? a. P-value=____(Round to three decimal places as needed.)The test statistic of z= - 1.66 is obtained when testing the claim that p<0.71. a. Using a significance level of a = 0.01, find the critical value(s). b. Should we reject Họ or should we fail to reject Ho ?
- The test statistic of z = - 2.39 is obtained when testing the claim that p<0.12. a. Using a significance level of a = 0.10, find the critical value(s). b. Should we reject Ho or should we fail to reject H,?a. Report and interpret the P-value for Fisher's exact test with (i) Ha: 0 > 1 and (ii) Hạ: 0 # 1. Explain how the P-values are calculated. b. Find and interpret the mid P-value for Ha: 0 > 1. Summarize advantages and disadvantages of this type of P-value. Table 3.14 Data for Exercise 3.18 on Therapy for Cancer of Larynx Cancer Controlled Cancer Not Controlled Surgery Radiation therapy 21 15 23Use 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. Choose the correct answer below. O A. Since the P-value is less than a, fail to reject the null hypothesis. O B. Since the P-value is greater than x, reject the null hypothesis. O C. Since the P-value is greater than x, fail to reject the null hypothesis. O D. Since the P-value is less than a, reject the null hypothesis. -C Z-Test Z-Test Inpt: Data Statsu #80 Ho:80 0:5.75 x:78.75 n:35 #μο μο Calculate Draw z 1.2861043 p=0.19840666 x = 78.75 n=35
- The test statistic of z = -1.62 is obtained when testing the claim that p = 3/5. a. Using a significance level of α = 0.05, find the critical value(s). b. Should we reject Ho or should we fail to reject Ho?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 = 0.01. Choose the correct answer below. O A. Since the P-value is less than a, reject the null hypothesis. OB. Since the P-value is greater than x, fail to reject the null hypothesis. OC. Since the P-value is less than a, fail to reject the null hypothesis. OD. Since the P-value is greater than a, reject the null hypothesis. ... Z-Test Z-Test Inpt: Data Statsu #50 Ho:50 6:5.75 X:48.75 n:35 H:Ho Ho Ho > Calculate Draw z = -1.2861043 p=0.19840666 x = 48.75 n = 35The mean salary of federal government employees on the general schedule is $59,593. The average salary of 30 state employees who do the similar work is $ 58,800 with α =$1500. At the 0.01 level of significance, can it be concluded that state employees earn on average less than federal employees?
- A population of n=7 scores has a mean of u=13. What is the value of EX for this population?According to a report from the United States Environmental Protection Agency, burning one gallon of gasoline typically emits about 8.9 kg of CO2. A fuel company wants to test a new type of gasoline designed to have lower CO2 emissions. Here are their hypotheses: Ho: = 8.9 kg Ha:H< 8.9 kg (where u is the mean amount of CO2 emitted by burning one gallon of this new gasoline). Under which of the following conditions would the company commit a Type I error?Which of the following values results from the use of a statistical test? 1. The critical value 2. The obtained value 3. Type I error 4. Type II error