1.Use the Student's t-Table to locate the value of tunder the following conditions.2. The sample size is 12 and the level ofconfidence is 95 percent.The sample size is 20 and the level ofconfidence is 90 percent.The sample size is 8 and the level ofconfidence is 99 percent.3.4.

1) Sample size , n = 12 Degrees of freedom = n-1 = 12-1=11 Confidence level = 0.95 significance…

Answered: 1. Use the Student's t-Table to locate…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Directions: 1. Answer the following items. 2. Find the appropriate sample size given the confidence level, standard deviation, and margin of error. 3. Round off to the nearest whole number. 4. Just write the number, no other symbols or variables, no spacing or comma. Problem: E = 1 minute, s = 15 minutes, 95% confidence leve
find the sample size needed to estimate the percentage of adults who can wiggle their ears. use a margin of error of 4 percentage and use a confidence level of 95%. complete parts (a) and (b) below. b. assume that 21% of adults can wiggle their ears. b. Assume that 21% of adults can wiggle their ears
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Directions: 1. Answer the following items. 2. Find the appropriate sample size given the confidence level, standard deviation, and margin of error. 3. Round off to the nearest whole number. 4. Just write the number, no other symbols or variables, no spacing or comma. Problem: E = 0.36 kg, s = 20 kg, 95% confidence level
Explain also how you use Z table ..
For the same sample statistics, which level of confidence would produce the widest confidence interval? Explain your reasoning. Choose the correct answer below. 99%, because as the level of confidence increases, ze decreases. 99%, because as the level of confidence increases, Z increases. O 90%, because as the level of confidence decreases, ze increases. 90%, because as the level of confidence decreases, Zc decreases.
Question 6 Suppose A and B are two events with probabilities: Find the following: a) P(ANB). b) P(A). c) P(Bº). d) P((An B)*). Edit View Insert Format Tools Table 12pt v P(Aª) = .40, P(B) = .25, P(A U B) = .75. ✓ Paragraph BIUAT² : B Q Search V
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Suppose we have only ten scores representing the ages (in years) of randomly selected U.S. commercial aircraft. The average age of the ten aircraft is 14.25 years and the sample standard deviation is 9.349 years. Construct a 95% confidence interval for the mean age of all U.S. commercial aircraft. I would appreciate to see what formulas you use and the work through because I messed up.
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1. Use the Student's t-Table to locate the value oft under the following conditions. 2. The sample size is 12 and the level of confidence is 95 percent. 3. The sample size is 20 and the level of confidence is 90 percent. 4. The sample size is 8 and the level of confidence is 99 percent.