Pulse Rates of Identical Twins A researcher wanted to compare the pulse rates of identical twins to see whether there was any difference. Ten sets of twins were randomly selected. The rates are given in the table as number of beats per minute. At a=.05 , is there a significant difference in the average pulse rates of twins? Use the P-value method. Assume the variables are normally distributed. Let ua be the average of twin A and ud= ua-ub . Twin A 83, 86, 93, 93, 91, 88, 85, 87, 90, 78 Twin B 93, 84, 78, 86, 83, 83, 93, 95, 79, 86 1. State the hypotheses and identify the claim H0: H1: Is this test one tailed or two tailed? 2. Compute the test value= t= 3. Find the interval for the P-value p value:

How to construct the frequency distributions? Write down the steps.

File Edit View History Home - myRCC Frequency mylearning.suny.edu/d21/le/content/920969/viewContent/25846458/View -10 8 n= Data was collected for a sample of organic snacks. The amount of sugar (in mg) in each snack is summarized in the histogram below. 6 X 2 Bookmarks Profiles Tab Window Help A.1 HW-23FA STATISTICS (81 X 160 164 168 172 176 180 184 188 amount of sugar (mg) Q What is the sample size for this data set? Submit Question Question Help: Video b Enter your payment details | ba x + BUN SEP 15 MacBook Air

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A Biomedical engineer is measuring how much current is needed to stimulate the nerve of a rat to create a muscle function. He is measuring 5 rats and wants to evaluate if less current is needed to stimulate a young animal compared to an old animal. The mean of the current to stimulate young animals is 4.6mA. Meuasrements from trials on Old Rats: 6, 6, 12, 7, 8 (in mA) Can the engineer conclude that old rats need more current?

HAV is a deformation of the big toe that often requires surgery. Doctors used X-rays to measure the angle (in degrees) of deformity in 38 consecutive patients under the age of 21 who came to a medical center for surgery to correct HAV. The angle is a measure of the seriousness of the deformity. Here are the data. 292216 321828 231529 352322 372249 261623 263328 202530 321933 242138 262230 112023 2124 It is reasonable to regard these patients as a random sample of young patients who require HAV surgery. Given a 95% confidence interval for the mean HAV angle in the population of all such patients, find the following. x (mean) =  s=(standard deviation) =    Confidence Interval:          ° to  °   Conclusion 1) We are 95% confident that the mean HAV angle among such patients is within this interval. 2) We are 95% confident that the mean HAV angle among such patients is outside this interval.     3) The mean HAV angle among such patients will always be outside this interval 95% of…

Find the z-score corresponding to the given value and use the z-score to determine whether the value is significantly low or high.  Consider a score to be significantly low if its z-score is less than  or equal to -2.  Consider a z-score to be significantly high if it is greater than or equal to 2.  Round the z-score to the nearest tenth if necessary. A body temperature of 96.7° F given that human body temperatures have a mean of 98.20° F and a standard deviation of 0.62°.

Find the z-scores for which 80% of the distribution's area lies between -z and z. Click to view page 1 of the table. Click to view page 2 of the table. The Z-scores are (Use a comma to separate answers as needed. Round to two decimal places as needed.) C