from the simulations is 0.112 grams. grams and the standard doviation for the differenc 50 What features of the distribution in the histogram let you know that modeling with a normal distribution Is 45 reasonablo? 40 35 30 25 20 Share with Class 15 10 5.

Answer  the question. Show all the steps, not only the final answer. if possible, sketch a little diagram to clearly see the area under the normal curve 3.  To see if young men ages 8-17 spend per month more or less than the national average of $24.44 to purchase illegal drugs, the manager surveyed 33 young men and found the average amount spent per month for illegal drugs was $22.97. The standard deviation of the sample was $3.70. At α = 0.02, can it be concluded that the average amount spent per month for illegal drugs is not equal to the national average of $24.44?

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← 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 148 174 In this example, μg 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 OC. Ho Hd #0 H₁-Hd = 0 135 121 137 134 170 190 152 134 Identify the test statistic. (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? Since the P-value is than…

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Please see attached.

(N ***. For the data shown, answer the questions. Round to 4 decimal places where possible. 28.5 28.8 18.7 12.9 1.5 26.7 Find the mean: Find the median: Find the standard deviation: Focus 33 words English (United States) - 三

Can you please check my answers for the first two and help ith the second two

This data is from a sample. Calculate the mean, standard deviation, and coefficient of variation. 18.1 19.6 13.2 31.4 14.1 45 10.2 35.4 36.5 Please show the following answers to 2 decimal places. Mean = Standard Deviation= % (Please enter a whole number.) %3D Coefficient of Variation

Please help me detailed solution with concepts and dont do handwritten , explain each and everything if not pls skip , i will like and if not followed then viceversa