What is the sample size needed under these conditions?( Round up to the nearest integer) Find the appropriate values of n, and n₂ (assume n₁ = n₂) needed to estimate (µ₁ −μ₂) with each of the following.a. A sampling error equal to 2.2 with 95% confidence. From prior experience it is known that o 14 and ₂ 16.b.A sampling error equal to 4 with 99% confidence. The range of each population is 56.CA 90% confidence interval of width 1.7. Assume that o 5.2 and o7.9.C

The excel function for calculating critical value is {=NORM.S.INV(α)}

Answered: Find the appropriate values of n₁ and…

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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A bank has taken a random sample of 4 customers for each set of various criteria to determine their level of customer satisfaction on a scale of 0 to 10. The data appear in the table below. Factor 1: Factor 2: Type of contact Time of day Automated Bank Representative Row means Morning 6, 5, 8, 4 8, 7, 9, 9 Row 1 x= 5.75 x = 8.25 x = 7.00 Afternoon 3, 5, 6, 5 9, 10, 6, 8 Row 2 x= 4.75 x = 8.25 x = 6.50 Evening 5, 5, 7,5 9, 10, 10, 9 Row 3 x= 5.50 x = 9.50 x =7.50 Column means Column 1 x = 5.33 Column 2 x = 8.67 Total x =7.00 For the two measurement problem, use an a = 0.05 level of significance. Conduct appropriate hypothesis tests and conclude whether to reject or not reject the claim that: a. there is no difference in population mean satisfaction depending on time of contact, b. there is no difference in population mean satisfaction depending on type of customer contact and c. there is no interaction between type of contact and time of contact.
Find kortosis of sample of 10 data 2,3,4,5,5,6,6,8,9,9
Dr. Garcia is curious about her teaching skills. To investigate, her class takes an anatomy quiz. The population average for the anatomy quiz is 15. What can be concluded with a = 0.10? The quiz scores for a random sample from the class are: 16, 17, 18, 16, 19, 15, 18. a) What is the appropriate test statistic? --Select-- b) Population: |---Select--- Sample: ---Select-- c) Obtain/compute the appropriate values to make a decision about Hn. Critical Value = ; Test Statistic = Decision: ---Select--- d) If appropriate, compute the CI. If not appropriate, input "na" for both spaces below. e) Compute the corresponding effect size(s) and indicate magnitude(s). If not appropriate, input and/or select "na" below. d = ; Magnitude: --Select--- ; Magnitude: --Select--- 2 = f) Make an interpretation based on the results. O Quiz scores for the class were significantly higher than the population. O Quiz scores for the class were significantly lower than the population. O Quiz scores from the class…
How many possible random samples of size n = 3 can be drawn from a population of size 10?
True or False: A professor computed the sample average exam score of 20 students and used it to estimate the average exam score of the 1,500 students taking the exam was an example of inferential statistics. Select one: True False
Use flat random numbers to estimate .
DEVORESTAT97.2.020. MY NOTES ASK YOUR TEA TV advertising agencies face increasing challenges in reaching audience members because viewing TV programs via digital streaming is gaining in popularity. A poli reported that 55% of 2349 American adults surveyed said they have watched digitally streamed TV programming on some type of device (a) Calculate and interpret a confidence interval at the 99 confidence level for the proportion of all adut Americans who watched streamed programming up to that point in time. (Round yo answers to three decimal places.)
Study groups are equivalent means that they are exactly the same number of male and female participants in each group statistically the same because sampling error is eliminated experimentally the same statistically equal, with small differences between groups due to sampling error
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Assume a one sample T test is performed with given sample size .Calculate the degree of freedom? sample size 23 17 degree of freedom

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