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3 years ago

Express 0.88 as a percent

Mathematics

2 answers:

Alekssandra [29.7K]3 years ago

5 0

Answer:

88%

Step-by-step explanation:

0.88*100=88%

Strike441 [17]3 years ago

3 0

Answer: 88%

Step-by-step explanation:

88%

How much is 0.88 out of 1 written as a percentage? Convert fraction (ratio) 0.88 / 1 Answer: 88%

You move the decimal two spaces to the right then it becomes a percentage sign... or 0.88 × 100 = 88%

Hope this helps!!! Good luck!!! ;)

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3 years ago

a food snack manufacturer samples 9 bags of pretzels off the assembly line and weights their contents. If the sample mean is 14.

gladu [14]

Answer:

Step-by-step explanation:

The formula for calculating the confidence interval is expressed as shown;

CI = xbar ± Z(б/√n)

xbar is the sample mean

Z is the value at 95% confidence interval

б is the standard deviation of the sample

n is the number of samples

Given xbar = 14.2, Z at 95% CI = 1.96, б = 0.70 and n = 9

Substituting this values into the formula;

CI = 14.2 ± 1.96(0.70/√9)

CI = 14.2 ± 1.96(0.70/3)

CI = 14.2 ± 1.96(0.2333)

CI = 14.2 ± 0.4573

CI = (14.2-0.4573, 14.2+0.4573)

CI = (13.7427, 14.6537)

Hence, the 95% confidence interval of the true mean is within the range

13.7≤ $\mu$ ≤14.7 (to 1 decimal place).

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2 years ago