If you collect a sample of size 100 with a sample mean of 50 and a...

If you collect a sample of size 100 with a sample mean of 50 and a standard error of the mean of 6 and test the hypothesis that the true mean is equal to 38 using a two tailed test with a significance level of 5% would you reject the hypothesis? Click True to reject or False to fail to reject.

True

False

Solutions

Expert Solution

6 = s/sqrt(100)

s = 60

orchestra answered 1 year ago

Next > < Previous

Related Solutions

if you collect a sample of size 13 with a sample mean of 54 and a...

if you collect a sample of size 13 with a sample mean of 54 and a standard error of the mean of 6, REPORT THE P-VALUE if the test the hypothesis that the true mean is equal to 55 using a two tailed test

if you collect a sample of size 13 with a sample mean of 54 and a...

Confidence Interval: You collect a random sample of size N and compute ?̅=50. The sample standard deviation (s) equals 10. Suppose the true mean μ is equal to 45.

1. Confidence Interval: You collect a random sample of size N and compute ?̅=50. The sample standard deviation (s) equals 10. Suppose the true mean μ is equal to 45. Compute a 95% confidence interval for the below sample sizes N. Which of the 95% confidence intervals contain the true mean (μ) and which do not? Explain. a) N=16 b) N=36 c) N=100 2. Sampling Distribution: A population of FIU students has an average height of 68 inches with...

Plant Sample size Sample mean Sample sd A 50 50.3 0.2 B 50 50.7 0.3 (a)...

Plant Sample size Sample mean Sample sd A 50 50.3 0.2 B 50 50.7 0.3 (a) (7 points) Is there evidence, at 5% significance level, to show that the mean diameter of these two plants are different? Write down the hypotheses, test statistic, P-value and your conclusion.

A population is expected to have a mean of 50. A sample of size 64 is...

A population is expected to have a mean of 50. A sample of size 64 is extracted and its mean is 55 with a standard deviation of 32. Required to test the claim at 95% confidence that the population mean is greater than 50. What is the Pvalue?

Plant Sample size Sample mean Sample sd A 50 50.3 0.2 B 50 50.7 0.3 (b)...

Plant Sample size Sample mean Sample sd A 50 50.3 0.2 B 50 50.7 0.3 (b) (5 points) Calculate a 90% confidence interval for the difference between the mean diameter of the entire batch produced at plant B and the mean diameter of the entire batch produced at plant A. Write a sentence interpreting the confidence interval.

A sample size of 120 had a sample mean and standard deviation of 100 and 15...

A sample size of 120 had a sample mean and standard deviation of 100 and 15 respectively. Of these 120 data values, 3 were less than 70, 18 were between 70 and 85, 30 between 85 and 100, 35 between 100 and 115, 32 were between 115 and 130 and 2 were greater than 130. Test the hypothesis that the sample distribution was normal.

Group Sample Size Sample Mean Sample Standard Deviation Atlanta 100 29.11 20.72 St. Louis 100 21.97...

Group Sample Size Sample Mean Sample Standard Deviation Atlanta 100 29.11 20.72 St. Louis 100 21.97 14.23 A. Use the six step hypothesis testing procedure to determine if there is evidence that the mean commute times are different in the populations of Atlanta and St. Louis residents. Step 1: Identify the population, comparison distribution, and assumptions [4 points] Step 2: State the null and research hypotheses [4 points] H0: H1: Step 3: Determine the characteristics of the comparison distribution (shape,...

A random sample of size n = 50 is taken from a population with mean μ...

A random sample of size n = 50 is taken from a population with mean μ = −9.5 and standard deviation σ = 2. [You may find it useful to reference the z table.] a. Calculate the expected value and the standard error for the sampling distribution of the sample mean. (Negative values should be indicated by a minus sign. Round "expected value" to 1 decimal place and "standard deviation" to 4 decimal places.) Expected Value= Standard Error= b. What...

A random sample with replacement of size 100 is drawn from a population with mean 3.5...

A random sample with replacement of size 100 is drawn from a population with mean 3.5 and standard deviation 3. Use the normal approximation to calculate the probability that the sample average is between 3 and 4. Round your answer to three decimal places.

Subjects