sample variance is Blank 1. Fill in the blank, read surrounding text. The sample standard deviation is estimated as Blank 2. Fill in the blank, read surrounding text. The means difference is Blank 3. Fill in the blank, read surrounding text.
What follows is a numeric fill in the blank question with 5 blanks.
The Head Mistress of Wesley Girls Senior High is convinced that a religious fast declared will affect the performance of her girls in the coming WASSCE examinations and believes her girls must not partake in any fast regardless. Every student, regardless of her age, must have full meals for at least 120 days prior to the main examination to build the right immunity and mental development needed for the WASSCE examination. Test scores of ten final year students out of a total of four hundred were randomly sampled pre and post a fast. Test if the head mistresses claim is true at 0.05 significance level. Round up your answers to two decimal places.
|
93 |
84 |
90 |
112 |
86 |
67 |
102 |
82 |
54 |
58 |
|
72 |
78 |
69 |
75 |
93 |
87 |
88 |
73 |
77 |
71 |
- The sample variance is Blank 1. Fill in the blank, read surrounding text.
- The sample standard deviation is estimated as Blank 2. Fill in the blank, read surrounding text.
- The means difference is Blank 3. Fill in the blank, read surrounding text.
- The estimated test statistic stands at t= Blank 4. Fill in the blank, read surrounding text.
- The critical value is determined as Blank 5. Fill in the blank, read surrounding text.
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