1. Answer all statistical questions with short answers
a. Compare and contrast a normal curve and a standard curve?
b. Compare and contrast a standard normal distribution and a sampling distribution.
c. Compare and contrast a z-distribution to a t-distribution.
Having difficulties finding similarities and differences. please help!!!
Both are normal distributions but standard normal distribution is a particular case of Normal distribution when the mean is 0 and standard deviation or variance is 1.
In z-distribution, population standard deviation is known whereas in t-distribution, population standard deviation is not known and sample standard deviation is known.
1. Answer all statistical questions with short answers a. Compare and contrast a normal curve and...
Answer the following questions about the Standard Normal Curve: a.) Find the area under the Standard Normal curve to the left of z = 1.24 (use 4 decimal places) b.) Find the area under the Standard Normal curve to the right of z = -2.13 (use 4 decimal places) c.) Find the z-value that has 87.7% of the total area under the Standard Normal curve lying to the left of it. d.) Find the z-value that has 20.9% of the total area...
Answer the following questions about the Standard Normal Curve: a.) Find the area under the Standard Normal curve to the left of z = 1.24 (use 4 decimal places) b.) Find the area under the Standard Normal curve to the right of z = -2.13 (use 4 decimal places) c.) Find the z-value that has 87.7% of the total area under the Standard Normal curve lying to the left of it. d.) Find the z-value that has 20.9% of the...
1) Find the area under the standard normal curve to the right of z= -0.62. Round your answer to four decimal places. 2) Find the following probability for the standard normal distribution. Round your answer to four decimal places. P( z < - 1.85) = 3) Obtain the following probability for the standard normal distribution. P(z<-5.43)= 4) Use a table, calculator, or computer to find the specified area under a standard normal curve. Round your answers to 4 decimal places....
Please answer both questions and I will rate if both answers are correct. Compute the following probabilities for the standard normal distribution Z B. P(-1.4 〈 Z 〈 0.15)- C. P(Z 〉-1.25)-
1. a) About ____ % of the area under the curve of the standard normal distribution is between z=−0.409z=-0.409 and z=0.409z=0.409 (or within 0.409 standard deviations of the mean). b) About ____ % of the area under the curve of the standard normal distribution is outside the interval z=[−0.78,0.78]z=[-0.78,0.78] (or beyond 0.78 standard deviations of the mean). c) About ____ % of the area under the curve of the standard normal distribution is outside the interval z=−0.86z=-0.86 and z=0.86z=0.86 (or...
Essay 1 - Chapter 3 - Answer all 3 questions. Compare and contrast the four subdivisions of logistics management. (page 54 in textbook) Discuss the ways in which logistics contributes to economic value in the economy and in an organization. Pick one of the ways and discuss in more detail. (page 54) Physical distribution has a special relationship to marketing. Why is this relationship so special? What is the nature of the overall relationship between logistics and marketing? Is the...
consider a standard normal distribution to answer the following question .draw the normal curve, shade the appropriate region and solve the following question a ) P( Z < -1.50 ) b ) P (- 1.00 < Z < 0.50 ) c ) what is the Z score that separates the upper 3% from the lower 97% of a normal distribution
Short Answer Question 9: The Immune System ----------------------------------- Key Concepts/Questions: a) Compare and Contrast Innate vs. Adaptive Immunity with respect to features including speed, specificity, memory, and cell types involved. b) Describe the types of professional antigen presenting cells and how they function with respect to the cell that they interact with, and how this interaction works at the molecular level
Find z such that 5.4% of the standard normal curve lies to the left of z. (Round your answer to two decimal places.) z = Find z such that 3.9% of the standard normal curve lies to the right of z. (Round your answer to two decimal places.) z = Find the z value such that 93% of the standard normal curve lies between −z and z. (Round your answer to two decimal places.) z = .....
1. For a normal curve whose mean is 5 with a standard deviation of 1.1 find the x-value with 73% of the data to the left of it. 5 %.67 b) 0.61 C) 0.73 d) answer not here 2. The marks on a statistic test are normally distributed with a mean of 62 and a standard deviation of 15. If the instructor wishes to assign B's or higher to the top 30% of the students in the class, what mark...