Consider the data below. Three random samples in different cities were selected. Water use per household per day were measured. City 1 City 2 City 3 56 56 66 57 54 66 45 45 54 60 41 61 65 48 58 45 44 45 45 56 Test the claim that the samples come from populations with the same mean. Assume all requirements have been met. Use a 5% level of significance. 1. Identify the tail of the test. [ Select ] 2. Find the P-value. [ Select] 3. Will the null hypothesis be rejected? [Select ] 4. Do the populations appear to have the same mean? (Select]

The prices of a sample of books at University A were obtained by two statistics students. Then the cost of books for the same subjects (at the same level) were obtained for University B. Assume that the distribution of differences is Normal enough to proceed, and assume that the sampling was random. a. First find both sample means and compare them. b. Test the hypothesis that the population means are different, using a significance level of 0.05. E Click the icon to view the table of prices. a. Find the sample mean for University A. (Round to the nearest cent as needed.) Find the sample mean for University B. (Round to the nearest cent as needed.) Compare the sample means. The sample mean is larger at b. Determine the hypotheses for this test. Let Hdifference be the mean of differences between the paired observations. Choose the correct answer below. OB. Ho: Hdifference 0 O E. Ho: Hdifference >0 = 0 Ha: Hdifference =0 Data Table #0 Find the test statistic for this test. %3= = (Round to…

What is the complete solution and answer to the given problem involving ANOVA?

Q8. Please help.

Listed in the accompanying table are heights (in.) of mothers and their first daughters. The data pairs are from a journal kept by Francis Galton. Use the listed paired sample data, and assume that the samples are simple random samples and that the differences have a distribution that is approximately normal. Use a 0.05 significance level to test the claim that there is no difference in heights between mothers and their first daughters. Mother 64.0 66.0 63.0 62.0 66.5 66.0 65.0 60.0 67.0 63.0 Daughter 67.0 66.5 70.5 66.0 61.0 66.0 65.5 65.0 67.0 65.0 In this example, Hd is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the daughter's height minus the mother's height. What are the null and alternative hypotheses for the hypothesis test? Ho: Ha = 0 in. H₁ Hd 0 in. (Type integers or decimals. Do not round.) Identify the test statistic. t= (Round to two decimal places as needed.)

Find the best point estimate for the ratio of the population variances given the following sample statistics. Round your answer to four decimal places. n1=18n1=18, n2=28n2=28, s12=75.455s12=75.455, s22=55.482s22=55.482 Copy Data

Refer to the table of sample values in Section 8.2 Exercise 10 of the text.Find the values of the UCL and LCL for the  (x-bar) chart for this data, and round your answers to 3 places after the decimal point.

Consider the data below. Three random samples in different cities were selected. Water use per household per day were measured. City 1 City 2 City 3 70 66 66 70 64 66 55 45 54 60 41 61 65 58 65 45 44 65 55 46 Test the claim that the samples come from populations with the same mean. Assume all requirements have been met. Use a 5% level of significance. Identify the tail of the test. [ Select ] Find the P-value. I [ Select ) Will the null hypothesis be rejected? Select] Do the populations appear to have the same mean? [Sclect

Refer to the table of sample values in Section 8.2 Exercise 6 of the text.Find the values of the UCL and LCL for the R chart for this data, and round your answers to 3 places after the decimal point.

Listed below are the lead concentrations in μ​g/g measured in different traditional medicines. Use a 0.10 significance level to test the claim that the mean lead concentration for all such medicines is less than 21 μ​g/g. Assume that the sample is a simple random sample.   19.5      21      7.5      19      14      20      10      12      21.5      16.5