Using statistical tables, show all workings.Carefully define the null and alternative hypotheses of the ?2 test of the above table. After, Find the missing values ‘*’, ‘**’, ‘***’ ??, ??? What is the conclusion of this test? Give reasons for your answer. Workers at a private business was given a grade (A, B, C) based on their yearly performance. Thedata was recorded along with the department they belong. The results obtained using MINITAB areshown below:Expected counts are printed below observed countsAвTotal1287Accounting(12.960)(7.830)(6.210)17108.Sales(16.800)(10.150)(8.050)3519118Marketing(18.240)(**)(8.740)38Total482923100Chi-sq =0.0711 +0.0037 +0.1005 +0.0024 +0.0022 +0.0003 +0.0317 +0.0000 +***=0.2746DF??, р-valuе???

In this case, it is needed to check whether the grades of the workers and the department they…

Using statistical tables, show all workings. Carefully define the null and alternative hypotheses of the ?2 test of the above table. After, Find the missing values ‘*’, ‘**’, ‘***’ ??, ??? What is the conclusion of this test? Give reasons for your answer.

Using statistical tables, show all workings. Carefully define the null and alternative hypotheses of the ?2 test of the above table. After, Find the missing values ‘’, ‘’, ‘’ ??, ??? What is the conclusion of this test? Give reasons for your answer.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.5: Comparing Sets Of Data

Problem 1GP

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Concept explainers

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.

Question

Using statistical tables, show all workings.

Carefully define the null and alternative hypotheses of the ?2 test of the above table. After, Find the missing values ‘*’, ‘**’, ‘***’ ??, ???
What is the conclusion of this test? Give reasons for your answer.

Workers at a private business was given a grade (A, B, C) based on their yearly performance. The
data was recorded along with the department they belong. The results obtained using MINITAB are
shown below:
Expected counts are printed below observed counts
A
в
Total
12
8
7
Accounting
(12.960)
(7.830)
(6.210)
17
10
8.
Sales
(16.800)
(10.150)
(8.050)
35
19
11
8
Marketing
(18.240)
(**)
(8.740)
38
Total
48
29
23
100
Chi-sq =
0.0711 +
0.0037 +
0.1005 +
0.0024 +
0.0022 +
0.0003 +
0.0317 +
0.0000 +
***
=0.2746
DF
??, р-valuе
???

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