It depends if x is positive or negative and the same as in y
Answer:
7x+42
Step-by-step explanation:
The area would be 63.The steps to how I got that anwser:
1.] Write your formula
A=bh
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2
2.]Begin by plugging in your measurements
A=7.5 times 16.8
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2
3.]Multiply the top two numbers together
A=126
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2
4.]Divide to get your final anwser
A=63
Answer:
Step-by-step explanation:
Given that
Sample size = n = 8: sample mean = 36.5 and s = sample std dev = 7.4 minutes
98% CI using t = (28.7, 44.3) with margin of error as 7.8
Now if sigma = population std dev is known we use Z critical value
Margin of error = 2.33*8.7/\sqrt 8 = 7.167
CI = (36.5 ±7.167)
This is not wider than that used using t distribution
The margin of error of u is ___7.167
98% confidence interval using the standard normal distribution is (29.333__,43.667__)
d)the confidence interval found using the standard normal distrubution is narrower than the confidence interval found using the students t-distribution
