A study of n 51 hospital employees who were diagnosed with a latex allergy from exposure...
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....
Independent random samples were selected from each of two normally distributed populations, n = 6 from population 1 and n2 = 5 from population 2. The data are shown in the table to the right. Complete parts a through c below. 4.7 4.6 1.6 2.3 1.2 3.8 0.6 3.9 C. Test Ho: 02202 against He:0; >o. Use a = 0.01. Determine the test statistic. F= (Round to two decimal places as needed.) Find the p-value. p= (Round to three decimal...
Independent random samples of n = 150 and n = 150 observations were randomly selected from binomial populations 1 and 2, respectively. Sample 1 had 68 successes, and sample 2 had 74 successes. You wish to perform a hypothesis test to determine if there is a difference in the sample proportions P, and py: (a) State the null and alternative hypotheses. O Ho: (P1 - P2) = 0 versus Ha: (P1-P2) < 0 O Ho: (2,-) < versus H: (2,-2)...
A random sample of 100 observations from a population with standard deviation 76 yielded a sample mean of 114. Complete parts a through c below. a. Test the null hypothesis that u = 100 against the alternative hypothesis that u > 100, using a = 0.05. Interpret the results of the test. What is the value of the test statistic? und to two decimal places as needed.) Find the p-value. p-value = (Round to three decimal places as needed.) State...
A simple random sample of size n 15 is drawn from a population that is normally distributed. The sample mean is found to be x 24.4 and the sample standard deviation is found to be s 6.3. Determine if the population mean is different from 26 at the 0.01 level of significance. Complete parts (a) through (d) below. (a) Determine the null and alternative hypotheses. ЕЕ (b) Calculate the P-value P.value Round to three decimal places as needed.) (c) State...
Consider the following data for a two-factor experiment as shown to the right. Complete parts a through c Factor A Level1 Le Level 3 34 31 34 25 Level 2 34 27 21 Level 1 45 Factor B 31 27 25 19 b. Based on the sample data, can you conclude that the levels of factor A have equal means? Test using a significance eve o o.05 Choose the correct hypotheses below. HA: At least two levels of factor A...
Consider the following hypothesis statement using α = 0.05 and the following data from two independent samples. Complete parts a and b below. Ho: P1-P2 0 H1 : p1-p2 #0 x1-18 1-90 X2-21 "2=110 Click here to view page 1 of the standard normal table. le a. Calculate the appropriate test statistic and interpret the result. What is the test statistic? (Round to two decimal places as needed.) What is/are the critical value(s)? (Round to two decimal places as needed....
Sample 1 Sample 2 n1 = 15 n2 = 13 x1 =54 x2 = s1 =39 77 s2=46 Independent random samples selected from two normal populations produced the sample means and standard deviations shown to the right a. Assuming equal vanances, conduct the test Ho (μι-μ2) 0 against H. (m-H2)" 0 using α 0 05 b. Find and interpret the 95% confidence interval for (P:- a. Find the test statistic The test statistic is Round to two decimal places as...
A bottled water distributor wants to determine whether the mean amount of water contained in 1-gallon bottles purchased from a nationally known water bottling company is actually 1 gallon. You know from the water bottling company specifications that the standard deviation of the amount of water is 0.011 gallon. You select a random sample of 45 bottles, and the mean amount of water per 1-gallon bottle is 0.995 gallon. Complete parts (a) through (e) below. a. Is there evidence that...
Consider the following hypothesis statement using α= 0.10 and the following data from two independent samples. Complete parts a and b below. X1 = 66 Ho P1-p2 20 x2 = 70 n2 = 130 H: P-P20 n1 = 125 Click here to view page 1 of the standard normal table Click here to view page 2 of the standard normal table. a. Calculate the appropriate test statistic and interpret the result. What is the test statistic? (Round to two decimal...