If n=17, x bar = 39, and s=8, find the margin of error at a 99% confidence level.  Give the answer to two decimal places.

Q: sample has a mean of M = 53 and a standard deviation of s = 11. For this sample, find the z-score…

A: From the given information, X=53s=11X =39 Thus,

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Q: 3. Compute for the sample size if the margin of error is 12, with a sample standard deviation of 35…

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Q: The level of confidence is %.

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Q: In 2011 the U.S. Department of Transportation reported with 95% confidence that the average length…

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A: Given that: Z is standard normal Distributed with i.e. mean µ =0 and standard deviation σ =1 now…

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Q: b. The test statistic ? O (please show your answer to 3 decimal places.) c. The p-value = |(Please…

A: a. The hypothesis is, Null hypothesis: H0:μ1=μ2 Alternative hypothesis: H1:μ1<μ2 b. The pooled…

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A: Solution: Given data, R = 6e (12.77x)

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A: Introduction: Define X as the random variable of interest here, which denotes the score obtained by…

Q: q

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Q: how did you find the standard deviation to be 1.2. explain clearly?

A: Here we have to explain the how we get standard deviation is 1.2

Q: Laura learned that the average GPA in her school is 3.6 with a standard deviation of 0.3. If her GPA…

A: From the given information,   Mean = 3.6 Standard deviation = 0.3   The objective is to find the…

Q: X= 17, M = 21, 0 = 9 and N = 16, conduct a two-tailed z-test. Use a = 05.

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Q: 1. In a sample of 100 cars with a standard deviation of 25km/h speed. Find the margin of error if…

A: NOTE: As mentioned above and also as per the guidelines, we are supposed to solve the first question…

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Q: For each problem, write which test you used in your calculator, draw the graph, calculate p-value,…

A: Determien the type of test used.   The type of test used is " 2 sample mean z"".   State the…

Q: Find the z score of the value 2.5 in the data set {1.90, 3.00, 2.5, 3.71, 2.12, 1.76, 2.71,1.39,…

A: From the provided information,

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Q: On a nationwide math test, the mean was 72 and the standard deviation was 7. If Roberto scored 90,…

A: Given that, Mean = 72 Standard deviation = 7

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A: Use ∑P(x) =1   to find the remaining probability

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Q: The distances golf balls travel under laboratory testing conditions are normally distributed. The…

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