plan A Plan B Plan C 29 31 27 27 32 26 30 30 27 27...

plan A	Plan B	Plan C
29	31	27
27	32	26
30	30	27
27	33	27
28	29	28

A company has three manufacturing plants, and you want to determine whether there is a difference in the average age of workers at the three locations. The following data are the ages of five randomly selected workers at each plant. Perform a test to determine whether there is a significant difference in the mean ages of the workers at the three plants. Use α = 0.01. Interpret on your findings.

Expert Solution

orchestra answered 2 years ago

Week Sales 26 15200 27 15600 28 16400 29 15600 30 14200 31 14400 32 16400...

Week Sales 26 15200 27 15600 28 16400 29 15600 30 14200 31 14400 32 16400 33 15200 34 14400 35 13800 36 15000 37 14100 38 14400 39 14000 40 15600 41 15000 42 14400 43 17800 44 15000 45 15200 46 15800 47 18600 48 15400 49 15500 50 16800 51 18700 52 21400 53 20900 54 18800 55 22400 56 19400 57 20000 58 18100 59 18000 60 19600 61 19000 62 19200 63 18000 64 17600...

Salaries of men and women Woman Man 26 29 28 31 30 33 32 29 34...

Salaries of men and women Woman Man 26 29 28 31 30 33 32 29 34 33 48 56 52 54 22 28 27 33 You are trying to determine whether male and female Central Bank employees, having equal qualifications, receive different salaries. The data contain the salaries (in thousands of dollars) for 9 male and 9 female employees. Assume salaries are normally distributed. a. Assume that each row of data represents paired observations, and using alpha=0.05, can you conclude...

Consider the data set: 26, 29, 24, 17, 27, 20, 23, 21, 26, 27. (a) Find...

Consider the data set: 26, 29, 24, 17, 27, 20, 23, 21, 26, 27. (a) Find the median and the upper and lower quartiles for this data set. (b) Setup then evaluate the numerical expression for the mean of this data set. You must write it out completely. ( c) Setup and then evaluate the numerical expression for the variance of this data set. You must write it out completely. (d) Find the standard deviation of this data set.

MATCH PROBLEMS TO PROCEDURES _______ GIVEN WEIGHTS OF 31 29 26 33 4028 30 AND 25...

MATCH PROBLEMS TO PROCEDURES _______ GIVEN WEIGHTS OF 31 29 26 33 4028 30 AND 25 AT OK=0.05 TEST THAT THE POPULATION MEAN IS 35. _______ TESTING THAT A GASOLINE ADDITIVE INCREASE MILEAGE, WE COMPUTE MPG WITH ADDITIVE MINUS MPG WITH ADDITIVE FOR EACH CAR. IF THE MEAN OF THE DIFFERENCES IS POSITIVE ENOUGH ACTION WILL BE REQUIRED TO IMPLEMENT THE ADDITIVE. __________________ RUN TIMES MSEC OF A NEW PHONE APP DEVELOPED BY GOT YOUR GP AND ESTABLISHED COMPETITOR WETRACKYOU...

25 , 26 , 26 , 27 , 28 , 31 ,40 ,41 What is the...

25 , 26 , 26 , 27 , 28 , 31 ,40 ,41 What is the q1 and q3 of this data set

For the problems 1 -6 Consider the data set 16, 26, 31, 32, 32, 32,...

For the problems 1 -6 Consider the data set 16, 26, 31, 32, 32, 32, 42, 47, 47, 47, 50, 50 (already put in increasing order) Compute the following: 1/ The mode: A/ 47 B/ 32 C/ Bimodal D/ 42 2/ The median: A/ 42 B/ 37 C/ 32 D/ 47 3/ The mean: A/ 37.7 B/ 37 C/ 36 D/ 36.2 4/ ...

Pension Plan Job Class Plan A Plan B Plan C Supervisor 22 26 21 Clerical 41...

Pension Plan Job Class Plan A Plan B Plan C Supervisor 22 26 21 Clerical 41 47 21 Labor 39 63 30 H0: Pension plan preference and job class are not related. H1: Pension plan preference and job class are related. Reject H0 if χχ2 > _____________ χχ2 = ____________

MA1: 27 SD = 7.37 MA2 = 29 SD = 6.16 MA3 = 32 SD =...

MA1: 27 SD = 7.37 MA2 = 29 SD = 6.16 MA3 = 32 SD = 5.45 Source SS df MS F Factor A 76 2 38 9.19 Persons 690.643 5 138.1287 Error (within) 41.333 10 4.133 Total 807.98 17 With α = .05, is there a statistically significant difference between the means of caffeine consumption? If so, what is the value of η2? Using the Tukey HSD test (show your work), which means are different?

Day High temperature, C Low temperature, C 1 30 25 2 32 26 3 34 23...

Day High temperature, C Low temperature, C 1 30 25 2 32 26 3 34 23 4 29 20 5 31 19 6 30 21 7 25 18 The high and low temperatures of each day in Wichita KS are given in Table. (1 pt) (a) Plot the high temperature for 7 days as a function of day, i.e., high temperature on y-axis, and day # on x-axis. Use the red, empty square as a marker with the solid line....

Manufacturer A B C D 25 23 25 27 23 21 25 26 21 ...

Manufacturer A B C D 25 23 25 27 23 21 25 26 21 23 25 27 23 24 21 26 To test whether the mean time needed to mix a batch of material is the same for machines produced by 4 manufacturers, the Jacobs Chemical Company obtained the following data on the time (in minutes) needed to mix the material. What is the p value? Does the data provide strong evidence evidence against Ho or weak evidence?...

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