Answer:
Try the first one but I think i that it
Step-by-step explanation:
Hope that helps
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Subtract the 7 from 8, which would then get you...
To solve this, you’d multiply 50 by 1.15 to get 57.5 grams of crisps.
I personally think its 18, please tell me what i did wrong <span />
Answer:
0.0312
Step-by-step explanation:
Given :
Mean or average time, xbar = 12.25
Standard deviation, s = 3
Sample size, n = 500
The test statistic :
(x - xbar) ÷ (s/sqrt(n))
(12 - 12.25) ÷ 3/sqrt(500)
-0.25 ÷ 0.1341640
Test statistic = - 1.863
The Pvalue :
P(Z < - 1.863) = 1 - P(Z ≤ 1.863)
P(Z < - 1.863) = 0.0312
Hence, the Pvalue = 0.0312
