Answer:
C) $826.82 to $873.18.
Step-by-step explanation:
Sample mean (M) = $850
Standard deviation (s) = $54
sample size (n) = 36
Z for 99% confidence interval (Z) = 2.576
The confidence interval is determined by the following relationship:
Applying the given values, the lower (L) and upper (U) values are:
The answer is C) $826.82 to $873.18.
Answer: the z score is 1
Step-by-step explanation:
Since the head circumference for boys at birth is normally distributed,
we would apply the formula for normal distribution which is expressed as
z = (x - µ)/σ
Where
x = head circumference for boys at birth.
µ = mean head circumference
σ = standard deviation
From the information given,
µ = 34.5cm
σ = 1.3 cm
For a boy born with a head circumference of 35.8cm, the z score is
z = (35.8 - 34.5)/1.3
z = 1
The total amount that Mrs. Chauke paid for buying airtime using her bank's services sum up to R2.20. This question is about Analyzing Bank Statements.
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Step 1:</h3>
Notice that on the 23rd of March and the 24th of March. On both occasions, she was charged R1.10 each.
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Step 2:</h3>
Hence, to get the total amount she paid as charges for buying airtime, we say:
1.10 + 1.10 = R2.20
See the link below for more about Analyzing Bank Statements:
brainly.com/question/24401217
Answer:
The diagonal length of the square equals:
diagonal ^ 2 = 7^2 + 7^2
diagonal ^ 2 = 49 + 49
diagonal ^ 2 = 98
diagonal = 9.899 cm
The diagonal is smaller than the circle's diameter and so it will ft inside the circle.
Step-by-step explanation:
Mean = (3+7+4+6+5)/5= 5
Median(middle value) = 3, 4, 5, 6, 7= 5