The given data set contains the amount of time(in minutes) students in an online course spent studying an assignment in a certain semester. According the historical study, the mean time students would spend on this section nationwide is 95 minutes. While a researcher think that this semester students might be using more time. Use = 0.05 level of significance. (Data is below)
Find the test statistic and show how.
Time (in minutes) 100 65 62 62 54 101 124 202 212 78 101 114 57 69 67 60 113 75 53 38 82 132 96 113 86 129 94 78 38 134 44 90 40 169 176 137 122 249 49 151 127 129 215 137 55 346
Time ( X ) | ||
100 | 85.361 | |
65 | 1957.098 | |
62 | 2231.5326 | |
62 | 2231.5326 | |
54 | 3051.3582 | |
101 | 67.8828 | |
124 | 217.8842 | |
202 | 8604.5846 | |
212 | 10559.8026 | |
78 | 975.8814 | |
101 | 67.8828 | |
114 | 22.6662 | |
57.0 | 2728.9236 | |
69 | 1619.1852 | |
67 | 1784.1416 | |
60 | 2424.489 | |
113 | 14.1444 | |
75 | 1172.316 | |
53 | 3162.8364 | |
38 | 5075.0094 | |
82 | 741.9686 | |
132 | 518.0586 | |
96 | 175.2738 | |
113 | 14.1444 | |
86 | 540.0558 | |
129 | 390.4932 | |
94 | 232.2302 | |
78 | 975.8814 | |
38 | 5075.0094 | |
134 | 613.1022 | |
44 | 4256.1402 | |
90 | 370.143 | |
40 | 4794.053 | |
169 | 3571.3652 | |
176 | 4457.0178 | |
137 | 770.6676 | |
122 | 162.8406 | |
249 | 19533.1092 | |
49 | 3628.7492 | |
151 | 1743.9728 | |
127 | 315.4496 | |
129 | 390.4932 | |
215 | 11185.368 | |
137 | 770.6676 | |
55 | 2941.88 | |
346 | 56055.7238 | |
Total | 5025 | 172278.371 |
To Test :-
H0 :-
H1 :-
Test Statistic :-
t = 1.5608
Test Criteria :-
Reject null hypothesis if
Result :- Fail to reject null hypothesis
Conclusion :- Accept Null Hypothesis
There is no sufficient evidence to support the claim that this semester students might be using more time ( more than 95 minute ).
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