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Eddi Din [679]
3 years ago
15

49/63 reduced fraction

Mathematics
2 answers:
statuscvo [17]3 years ago
5 0
To reduce a fraction, you must find what number goes into both the numerator and denominator evenly.

In this case, 7 goes into each number evenly.

All we need to do now is divide each number by 7.

49\div7=7\\63\div7=9\\\\\frac{7}{9}


marin [14]3 years ago
3 0
49 / 7 = 7
63 / 7 = 9,
You place 7 over 9 and you get your answer!

7/9
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<span> <span><span> <span>   </span> </span> </span></span>

Width of the confidence interval = t * SE =     1.89457861* 0.67 = 1.272685913

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Set B:

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t- Score =  1.89457861

<span> <span><span> <span>   </span> </span> </span></span>

Width of the confidence interval = t * SE =     1.89457861* 0.87 = 1.641094994

Lower Limit of the confidence interval = x-bar - width =      4.5 - 1.641094994 = 2.86

Upper Limit of the confidence interval = x-bar + width =      4.5 + 1.641094994 = 6.14

The 90% confidence interval is [2.86, 6.14]

 

<span>We can obviously see that sample B has more variation in the scores than sample A. The fact that the standard deviation is 2.45 for B and 1.9 for A). Therefore, they yield dissimilar confidence intervals even though they have the same mean and range.</span>

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