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Complete the following hypotheses, using = 0.05 . Use the data at the bottom of the sheet for your source data. Hypothesis: Mean calls made

Complete the following hypotheses, using = 0.05 . Use the data at the bottom of the sheet for your source data. Hypothesis: Mean calls made among those with no training is at least 145. Complete the fields of the table below and be sure to add explanations along with the calculations.

  1. Hypothesis Test 3: Mean calls made among those with no training is at least 145
Hypothesis statement Mean calls made among those with no training is at least 145
Null and alternate hypotheses

Ho:

Ha:

Type of test Right tail or left tail or two tail. Briefly explain the reason for your answer.
Use z or t? Select z or t and explain your selection.
Rejection region Assume alpha = .05. Where is the rejection region? Format should be something like, for example, z>2.3
Test statistic Give value of the test statistic
p-value Give value of the p-value
Hypothesis test result using p-value Do we reject or not reject Ho. Why?
Hypothesis test result using test statistic Do we reject or not reject Ho. Why?
Do the results support the claim being made?

Avoid statistical jargon, i.e. don't just mention "null hypothesis" or "alternate hypothesis". Restate the claim. State your answer in terms that a business person would understand?

Example: "Since we are rejecting Ho, we have support for Ha, which is the martian's claim. Therefore we can support the martian's claim their average height is more than 24 inches".

99% Confidence Interval for the mean Give the 99% confidence interval for the mean of the variable being tested above.

Sales (Y) Calls (X1) Time (X2) Years (X3) Type
37 117 14.8 0 GROUP
38 117 15.3 3 NONE
40 117 15.6 1 NONE
41 117 15.8 2 GROUP
37 120 18.2 2 GROUP
45 120 13.6 1 GROUP
43 131 16.8 4 GROUP
34 133 14.4 1 GROUP
37 133 15.2 2 GROUP
42 135 14.8 3 NONE
48 136 13.7 3 ONLINE
37 137 16.3 2 GROUP
39 138 15.5 1 NONE
45 138 19.3 4 GROUP
44 139 15.3 2 GROUP
45 140 13.6 1 GROUP
37 142 17.1 2 NONE
40 144 17.4 0 NONE
37 145 18 3 NONE
38 145 17.1 2 NONE
43 145 18.6 2 NONE
46 145 16.8 0 ONLINE
45 146 12 3 GROUP
37 148 15.7 3 GROUP
37 148 16.2 1 GROUP
42 148 16.9 1 NONE
43 148 15.9 1 ONLINE
43 148 14.5 4 ONLINE
44 148 13.5 3 GROUP
46 148 13.1 1 GROUP
39 149 18.8 1 GROUP
46 149 17.8 3 NONE
49 149 21.1 2 GROUP
40 150 10.8 1 GROUP
44 150 18.4 1 NONE
46 151 16 1 GROUP
37 152 19.8 0 GROUP
49 152 22.3 0 ONLINE
41 153 14.7 1 GROUP
42 153 15.5 2 GROUP
43 153 15.2 3 GROUP
46 153 14.1 1 ONLINE
42 154 14.8 2 ONLINE
41 155 13.6 3 GROUP
45 155 18.9 2 GROUP
39 156 13.3 4 NONE
48 156 15.1 4 ONLINE
41 157 11.5 3 ONLINE
47 157 14.3 1 GROUP
41 158 19.3 2 ONLINE
45 158 13.9 1 ONLINE
44 159 18.1 2 ONLINE
42 160 10.6 3 NONE
49 160 13.6 3 GROUP
49 161 16.1 3 NONE
46 162 16.2 2 ONLINE
46 162 12.1 1 GROUP
45 164 16.7 3 NONE
47 164 15.3 0 ONLINE
48 165 19.8 5 ONLINE
43 166 17.6 3 ONLINE
49 166 16.2 0 ONLINE
42 167 17.7 3 ONLINE
42 167 18 2 NONE
50 167 12.6 5 ONLINE
50 167 16.2 1 ONLINE
43 169 13.3 4 NONE
44 169 8.9 0 ONLINE
44 169 13.6 1 ONLINE
44 171 13.6 3 GROUP
48 171 13 2 GROUP
46 172 12.5 1 ONLINE
43 173 19.8 2 ONLINE
45 173 17.6 2 ONLINE
51 173 18.6 0 ONLINE
48 174 18.6 2 GROUP
57 174 10.8 2 NONE
48 175 13.7 1 ONLINE
47 176 14.1 2 ONLINE
45 177 14.2 2 GROUP
48 177 13.9 3 ONLINE
50 177 11.4 4 NONE
52 177 14.5 1 ONLINE
53 178 13.2 2 ONLINE
54 180 11.8 4 GROUP
44 182 15.5 4 NONE
53 182 10.5 1 ONLINE
47 183 12.8 2 ONLINE
49 184 16.7 2 ONLINE
50 184 15.6 2 ONLINE
53 184 15.2 0 ONLINE
45 185 13.3 1 ONLINE
44 188 12.9 3 GROUP
47 120 16.3 1 NONE
49 188 20.4 1 NONE
58 189 12 1 ONLINE
50 190 11.3 1 ONLINE
47 193 13.5 2 ONLINE
50 197 14 2 ONLINE
58 197 11.8 1 ONLINE

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