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NNADVOKAT [17]
3 years ago
6

Lisa is covering a rectangular table with small square tiles. It will take 32 rows of tile with 48 tiles in each row. How many t

iles are needed to cover the table?
Mathematics
2 answers:
IRISSAK [1]3 years ago
5 0
To figure this out you just multiply 32 by 48, which is 1,536. 
LenaWriter [7]3 years ago
4 0

multiply:

32*48 = 1536 tiles

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1. A new brand of hot dog claims to have a lower sodium content than the leading brand.
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Answer:

(a) Population mean = 314.5mg

(b) Margin of error = 21.281mg

(c) No, 350mg is not a plausible value

The new brand of hot dog has a lower sodium content on average than the leading brand

(d) Yes

Step-by-step explanation:

(a) Population mean = (370+326+322+297+326+289+293+264+327+331)/10 = 3145/10 = 314.5mg

(b) Margin of error = t×sd/√n

sd = 29.73, n = 10, degree of freedom = n-1 = 10-1 = 9

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t-value corresponding to 9 degrees of freedom and 95% confidence level is 2.262

Margin of error = 2.262×29.73/√10 = 21.281mg

(c) No

Lower limit of new brand = 314.5 - 21.281 = 293.219mg

Upper limit = 314.5 + 21.281 = 335.781mg

The range of sodium content for the new brand of hot dog is between 293.219mg and 335.781mg which is lower than the leading brand (350mg)

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