Suppose you want to test the claim the the paired sample data given below come from a population for which the mean difference is ??=0. ?(68, 73, 84, 88, 85, 88, 56) y(76, 57, 79, 65, 61, 60, 73)   Use a 0.01 significance level to find the following: (a)    The mean value of the differnces ? for the paired sample data d¯= (b)    The standard deviation of the differences ? for the paired sample data ??= (c)    The t test statistic ?=

Listed below are systolic blood pressure measurements (mm Hg) taken from the right and left arms of the same woman. Assume that the paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Use a 0.05 significance level to test for a difference between the measurements from the two arms. What can be concluded? 143 140 141 136 133 Right arm Left arm 180 174 192 140 144 In this example, . 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 measurement from the right arm minus the measurement from the left arm. What are the null and alternative hypotheses for the hypothesis test? O A. Ho: Ha = 0 O B. Ho: Hd #0 0 = Prt :H O D. Ho: Hd =0 H O C. Ho: Ha 0 Identify the test statistic. t%3D (Round to two decimal places as needed.) Identify the P-value. P-value (Round to three decimal places as needed.) What is the conclusion based on the hypothesis test?…

Listed below are systolic blood pressure measurements (mm Hg) taken from the right and left arms of the same woman. Assume that the paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Use a 0.05 significance level to test for a difference between the measurements from the two arms. What can be concluded? Right arm Left arm 150 142 120 131 167 160 179 156 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 measurement from the right arm minus the measurement from the left arm. What are the null and alternative hypotheses for the hypothesis test? O A. Ho: Hd = 0 H₁: Hd 0 Since the P-value is than the significance level, the null hypothesis. There sufficient evidence to support the claim of a difference in measurements between the two arms.

Mr 8. The results for an IQ quiz taken by 8 students from Ze Class A and Class B are shown below. The fal maximum score for the quiz is 25. we Class A: 4, 6, 6, 7, 8, 10, 11, 12 Class B: 0, 1, 1, 2, 3, 14, 17, 25 (i) Calculate the mean and standard deviation for Class A and Class B. Show your working clearly.

z Scores LeBron James, one of the most successful basketball players of all time, has a height of 6 feet 8 inches, or 203 cm. Based on statistics from Data Set 1 “Body Data” in Appendix B, his height converts to the z score of 4.07. How many standard deviations is his height above the mean?

What was the age distribution of prehistoric Native Americans? Extensive anthropological studies in the southwestern United States gave the following information about a prehistoric extended family group of 84 members on what is now a Native American reservation. For this community, estimate the mean age expressed in years, the sample variance, and the sample standard deviation. For the ciass 31 and over, use 35.5 as the class midpoint. (Round your answers to one decimal place.) Age range (years) Number of individuals 1-10 11-20 19 21-30 15 31 and over 40 10

The ages of undergraduate students at two universities (one in the east and one in the west) are being compared.  Researchers want to know if there is a difference in the mean age of students at the two universities.  The population standard deviations are known. The following data shows the results of samples collected at each institution:              School Location       n (sample size)        sample mean ( )         population standard deviation              West                      33                           25.78                       6.29              East                       35                           23.16                       7.52   What is the value of the test statistic for the previous problem?  (Enter your answer as a positive value even if you calculated a negative test statistic value i.e. if you calculated -1.311 you should enter 1.311).  Round your answer to 3 decimal places.

Consider the following sample data. Sample A: 11, 22, 33 Sample B: 81, 92, 103 Sample C: 1,100; 1,111; 1,122   (a) Find the mean and standard deviation for each sample.    Sample A: Sample B: Sample C: Mean       Sample Standard Deviation          (b) What does this exercise show about the standard deviation?  multiple choice The idea is to illustrate that the standard deviation is not a function of the value of the mean. The idea is to illustrate that the standard deviation is a function of the value of the mean.

I need an APA write up description of the descriptives of this data set of the number of male and females who preferred hamburgers or hot dogs. (EXAMPLE: “The total sample was n=…, demographic breakup is ......The mean was...the Standard Deviation was…”) etc.