Technician Technician 1 2 1.45

Technician Technician

1 2

1.45 1.54

1.37 1.41

1.21 1.56

1.54 1.37

1.48 1.2

1.29 1.31

1.34 1.27

1.35

Two quality control technicians measured the surface finish of a metal part, obtaining the data in the table below. Assume that the measurements are normally distributed.

a. Test the hypothesis that the mean surface finish measurements made by the two technicians are equal. Use α = 0.05 and assume equal variances. b. What are the practical implications of the test in part (a)? Discuss what practical conclusions you would draw if the null hypothesis were rejected. c. Assuming that the variances are equal, construct a 95% confidence interval on the mean difference in surface-finish measurements d. Test the hypothesis that the variances of the measurements made by the two technicians are equal. Use α = 0.05. What are the practical implications if the null hypothesis is rejected? e. Construct a 95% confidence interval estimate of the ratio of the variances of technician measurement error.Please solve urgent

Expert Solution

orchestra answered 2 years ago

Technician Technician 1 2 1.45

Technician Technician 1 2 1.45 1.54 1.37 1.41 1.21 1.56 1.54 1.37 1.48 1.2 1.29 1.31 1.34 1.27 1.35 Two quality control technicians measured the surface finish of a metal part, obtaining the data in the table below. Assume that the measurements are normally distributed. a. Test the hypothesis that the mean surface finish measurements made by the two technicians are equal. Use α =...

Technician Technician A B 1.45 1.54 1.37 &n

Technician Technician A B 1.45 1.54 1.37 1.41 1.21 1.56 1.54 1.37 1.48 1.2 1.29 1.31 1.34 1.27 1.35 Technician Technician 1 2 1.45 1.54 1.37 1.41 1.21 1.56 1.54 1.37 1.48 1.2 1.29 1.31 1.34 1.27 1.35 a. Test the hypothesis that the mean surface finish measurements made by the...

jubail college advertised two post 1/ Lab technician 2/ a teaching assistant Write a job objective

Trial wt % theobromine 1 1.31 2 1.25 3 1.09 4 1.01 5 1.45 Suppose another...

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b. Who is a ‘port technician’?

1. Is Findley overworked? Why or why not? Should another technician be hired?

d) As a technician who worked at the plant you named in (c), discuss TWO (2)...

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21. PART A. A solution contains 1.45×10-2 M calcium acetate and 1.36×10-2 M iron(II) nitrate. Solid...

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Please put Rcode and Routput. Thank you. 1. Use R to: (a)Find P(-1.45 < Z <...

Please put Rcode and Routput. Thank you. 1. Use R to: (a)Find P(-1.45 < Z < 2.72) b) Find P(Z < -2.24) (c) Find P( -1.34 < Z < - 0.74) d) Find P( 1.53 < Z) e) Find P( Z > 1.31) 2. Use R to: (a)Find z0 when P( - Z0 < Z < Z0)= 0.82 (b) Find z0 when P(Z > Z0)= 0.32 (c) Find z0 when P(Z < Z0)= 0.28 3. Use R: Suppose yearly income...

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Technician Technician 1 2 1.45

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Technician Technician 1 2 1.45

Technician Technician A B 1.45 1.54 1.37 &n

jubail college advertised two post 1/ Lab technician 2/ a teaching assistant Write a job objective

Trial wt % theobromine 1 1.31 2 1.25 3 1.09 4 1.01 5 1.45 Suppose another...

b. Who is a ‘port technician’?

1. Is Findley overworked? Why or why not? Should another technician be hired?

d) As a technician who worked at the plant you named in (c), discuss TWO (2)...

1) As a technician in a large pharmaceutical research firm, you need to produce 450. mL...

21. PART A. A solution contains 1.45×10-2 M calcium acetate and 1.36×10-2 M iron(II) nitrate. Solid...

Please put Rcode and Routput. Thank you. 1. Use R to: (a)Find P(-1.45 < Z <...