Homework Answers
a) P value =0.3178...................by using Excel =TDIST(ABS(-0.477),46,1)
b) There is insufficient evidence to reject H0 at 
Since, P value > 0.05
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Consider testing Ho: u = 20 against Ha: u< 20 where u is the mean number...
Consider testing H0: μ=20 against Ha: μ<20 where μ is the mean number of latex gloves...
Consider testing H0: μ=20 against Ha: μ<20 where μ is the mean number of latex gloves used per week by all hospital employees, based on the summary statistics n=40 overbar x=19.3 and s=11.2. Complete parts a and b. a. Compute the p-value of the test. The p-value of the test is __________(Round to four decimal places as needed.)
is the mean number of latex gloves used per week by all hospital employees, based on...
is the mean number of latex gloves used per week by all hospital employees, based on the summary statistics Consider testing Ho u = 20 against H u <20 where n=41, x = 19.1, and s = 11.3. Complete parts a and b. a. Compute the p-value of the test. The p-value of the test is (Round to four decimal places as needed.) b. Compare the p-value with a 0.05 and make the appropriate conclusion. Choose the correct answer below....
Consider testing Upper H 0 : mu equals 20H0: μ=20 against Upper H Subscript a Baseline...
Consider testing Upper H 0 : mu equals 20H0: μ=20 against Upper H Subscript a Baseline : mu less than 20Ha: μ<20 where muμ is the mean number of latex gloves used per week by all hospital employees, based on the summary statistics nequals=4444, x overbarxequals=19.219.2, and sequals=11.211.2. Compute the p-value of the test.
{Exercise 9.09 (Algorithmic).} Consider the following hypothesis test: Ho: u 20 Ha: p < 20 A...
{Exercise 9.09 (Algorithmic).} Consider the following hypothesis test: Ho: u 20 Ha: p < 20 A sample of 40 provided a sample mean of 19.6. The population standard deviation is 1.8. a. Compute the value of the test statistic (to 2 decimals). -1.64 b. What is the p-value (to 3 decimals)? -1.757 X c. Using a = .05, can it be concluded that the population mean is less than 20? No d. Using a = .05, what is the critical...
A study of n 51 hospital employees who were diagnosed with a latex allergy from exposure...
A study of n 51 hospital employees who were diagnosed with a latex allergy from exposure to the powder on latex gloves found that the number of latex gloves used per week by the sample workers is summarized as follows: x-19.1 and s-8.4. Let ơ2 represent the variance in the number of latex gloves used per week by all employees. Consider testing o100 against Ha of #100. Complete parts a through c. a. Give the rejection region for the test...
4. Consider a test of Ho a, Ha : μ<75. z--160, α:004 75 performed with the...
4. Consider a test of Ho a, Ha : μ<75. z--160, α:004 75 performed with the computer. The software reports a two-tailed p value of 0.1094. Make the appropriate conclusion for each of the following situations. c.Ha μ>75, z-160 α-009 d, Ha : #75. z:-160, 01:001 a. Choose the correct answer below O There is sufficient evidence to reject Ho There is insuficient evidence to reject Ho b. Choose the correct answer below. O There is insufficient evidence to reject...
Consider the following hypothesis test. Ha: μ < 50 A sample of 36 is used. Identify the p-value and state your conclusion for each of the following sample results. Use -0.01. X (a) 49 and s-5.2 Fi...
Consider the following hypothesis test. Ha: μ < 50 A sample of 36 is used. Identify the p-value and state your conclusion for each of the following sample results. Use -0.01. X (a) 49 and s-5.2 Find the value of the test statistic. (Round your answer to three decimal places.) Find the p-value. (Round your answer to four decimal places.) p-value State your conclusion. Do not reject Ho There is insufficient evidence to conclude that u 50 O Reject Ho....
2. An article in Current Allergy & Clinical Immunology (Mar. 2004) studied n = 46 hospital...
2. An article in Current Allergy & Clinical Immunology (Mar. 2004) studied n = 46 hospital employees who were diagnosed with allergic reactions on their hands and arms. There is some evidence that latex allergies develop from exposure to the powder on latex gloves. The number of pairs of latex gloves used per week by the sampled workers is summarized as follows: ? = 19.3 and s = 11.9. Let μ represent the mean number of pairs of latex gloves...
Consider a large-sample level 0.01 test for testing Ho: p 0.2 against Ha: p> 0.2. 0.21,...
Consider a large-sample level 0.01 test for testing Ho: p 0.2 against Ha: p> 0.2. 0.21, compute β(0.21) for sample sizes n-81, 4900, 10,000, 40,000, and 90,000. (Round your answers to four decimal places.) (a) For the alternative value ρ 81 4900 10,000 40,000 90,000 (b) For p = x/n = 0.21, compute the P-value when n 81, 4900, 10,000, and 40,000. (Round your answers to four decimal places.) n P-value 81 4900 10,000 40,000
Consider the follovwing hypothesis test. Ho: us 12 H:u > 12 A sample of 25 provided...
Consider the follovwing hypothesis test. Ho: us 12 H:u > 12 A sample of 25 provided a sample mean x = 14 and a sample standard deviation s = 4.33. (a) Compute the value of the test statistic. (Round your answer to three decimal places.) (b) Use the t distribution table to compute a range for the p-value. O p-value > 0.200 0.100 < p-value < 0.200 0.050 < p-value < 0.100 0.025 < p-value < 0.050 0.010 < p-value...
is the mean number of latex gloves used per week by all hospital employees, based on the summary statistics Consider testing Ho u = 20 against H u <20 where n=41, x = 19.1, and s = 11.3. Complete parts a and b. a. Compute the p-value of the test. The p-value of the test is (Round to four decimal places as needed.) b. Compare the p-value with a 0.05 and make the appropriate conclusion. Choose the correct answer below....
{Exercise 9.09 (Algorithmic).} Consider the following hypothesis test: Ho: u 20 Ha: p < 20 A sample of 40 provided a sample mean of 19.6. The population standard deviation is 1.8. a. Compute the value of the test statistic (to 2 decimals). -1.64 b. What is the p-value (to 3 decimals)? -1.757 X c. Using a = .05, can it be concluded that the population mean is less than 20? No d. Using a = .05, what is the critical...
A study of n 51 hospital employees who were diagnosed with a latex allergy from exposure to the powder on latex gloves found that the number of latex gloves used per week by the sample workers is summarized as follows: x-19.1 and s-8.4. Let ơ2 represent the variance in the number of latex gloves used per week by all employees. Consider testing o100 against Ha of #100. Complete parts a through c. a. Give the rejection region for the test...
4. Consider a test of Ho a, Ha : μ<75. z--160, α:004 75 performed with the computer. The software reports a two-tailed p value of 0.1094. Make the appropriate conclusion for each of the following situations. c.Ha μ>75, z-160 α-009 d, Ha : #75. z:-160, 01:001 a. Choose the correct answer below O There is sufficient evidence to reject Ho There is insuficient evidence to reject Ho b. Choose the correct answer below. O There is insufficient evidence to reject...
Consider the following hypothesis test. Ha: μ < 50 A sample of 36 is used. Identify the p-value and state your conclusion for each of the following sample results. Use -0.01. X (a) 49 and s-5.2 Find the value of the test statistic. (Round your answer to three decimal places.) Find the p-value. (Round your answer to four decimal places.) p-value State your conclusion. Do not reject Ho There is insufficient evidence to conclude that u 50 O Reject Ho....
Consider a large-sample level 0.01 test for testing Ho: p 0.2 against Ha: p> 0.2. 0.21, compute β(0.21) for sample sizes n-81, 4900, 10,000, 40,000, and 90,000. (Round your answers to four decimal places.) (a) For the alternative value ρ 81 4900 10,000 40,000 90,000 (b) For p = x/n = 0.21, compute the P-value when n 81, 4900, 10,000, and 40,000. (Round your answers to four decimal places.) n P-value 81 4900 10,000 40,000
Consider the follovwing hypothesis test. Ho: us 12 H:u > 12 A sample of 25 provided a sample mean x = 14 and a sample standard deviation s = 4.33. (a) Compute the value of the test statistic. (Round your answer to three decimal places.) (b) Use the t distribution table to compute a range for the p-value. O p-value > 0.200 0.100 < p-value < 0.200 0.050 < p-value < 0.100 0.025 < p-value < 0.050 0.010 < p-value...
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