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natka813 [3]
3 years ago
15

Benjamin is saving money for a new laptop computer . he already has $50 in his account that his grandmother gave him for his bir

thday. now he plans on saving $25 per week . the equation y=25x + 50 represents the total amount of money Benjamin will have saved after x number of weeks saving .
a . represents this linear equation with a graph
b . how much money will Benjamin have saved after 10 weeks ?
Mathematics
1 answer:
Mrrafil [7]3 years ago
3 0
For A well I can't do a graph ,but to do it you would start at 50 going up 25 each week

For B it would be 300 because 25×10=250 plus the 50 from his grandmother he would have 300

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Answer:

z = 2.1784 > 1.96,

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Step-by-step explanation:

For the males:

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Pooled proportion:

P= (x1 + x2) /( n1+ n2)

= (63 + 97) / (162 + 333)= 0.3232

Test statistics :

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0.3889- 0.2913 / √0.3232 × 0.6768 × (1/162 +1/333)

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c) Critical value :

Two tailed critical value, z critical = Norm.S .INV (0.05/2) = 1.960

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z = 2.1784 > 1.96,

Reject the null hypothesis

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