Question

The standard deviation for a population is 60. A sample size of 120 is examined in...

The standard deviation for a population is 60. A sample size of 120 is examined in the context of a statistical assessment. The mean for the sample is 1,350. The preferred level of statistical significance is 5%. The population has a mean of 1,500. The statistical argument made by the assessors is that the sample and the population are the same. Is this assertion accurate? Why, or why not? Use the correct steps in testing a hypothesis.

Homework Answers

Answer #1

Answer:-

Dear student,
I am waiting for your feedback. I have given my 100% to solve your queries. If you are satisfied by my given answer. Can you please like it☺
  
Thank You!!!

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A population has a mean of 220 and a standard deviation of 120. If a sample...
A population has a mean of 220 and a standard deviation of 120. If a sample of size 6 is taken, what is the probability the sample mean is greater than 291.6? Enter your answer as a decimal to 3 decimal places. A population has a mean of 486 and a standard deviation of 121. If a sample of size 10 is taken, what is the probability the sample mean is greater than 506.4? Enter your answer as a decimal...
A sample mean, sample size, and population standard deviation are provided below. Use the one-mean z-test...
A sample mean, sample size, and population standard deviation are provided below. Use the one-mean z-test to perform the required hypothesis test at the 5% significance level. x̄ = 27, n = 12, σ = 5 Ha : μ> 23
A simple random sample of 60 items resulted in a sample mean of 89. The population...
A simple random sample of 60 items resulted in a sample mean of 89. The population standard deviation is 18. a. Compute the 95% confidence interval for the population mean b. Assume that the same sample mean was obtained from a sample of 120 items. Provide a 95% confidence interval for the population mean c. What is the effect of a larger sample size on the margin of error? -increase - decrease -same - cannot determine
A sample​ mean, sample​ size, and population standard deviation are provided below. Use the​ one-mean z-test...
A sample​ mean, sample​ size, and population standard deviation are provided below. Use the​ one-mean z-test to perform the required hypothesis test at the 55​% significance level. x=35, n=34, o=7, H0: u=37, Ha: u<37
A sample​ mean, sample​ size, and population standard deviation are provided below. Use the​ one-mean z-test...
A sample​ mean, sample​ size, and population standard deviation are provided below. Use the​ one-mean z-test to perform the required hypothesis test at the 11​%significance level. X=44 N=10 o=6 Ho: u=38 Ha: u>38
A sample of size 194, taken from a normally distributed population whose standard deviation is known...
A sample of size 194, taken from a normally distributed population whose standard deviation is known to be 9.50, has a sample mean of 91.34. Suppose that we have adopted the null hypothesis that the actual population mean is greater than or equal to 93, that is, H0 is that μ ≥ 93 and we want to test the alternative hypothesis, H1, that μ < 93, with level of significance α = 0.05. a) What type of test would be...
A simple random sample of 60 items resulted in a sample mean of 91. The population...
A simple random sample of 60 items resulted in a sample mean of 91. The population standard deviation is 12. a. Compute the 95% confidence interval for the population mean (to 1 decimal). ( , ) b. Assume that the same sample mean was obtained from a sample of 120 items. Provide a 95% confidence interval for the population mean (to 2 decimals). ( , ) c. What is the effect of a larger sample size on the margin of...
A simple random sample of 60 items resulted in a sample mean of 79. The population...
A simple random sample of 60 items resulted in a sample mean of 79. The population standard deviation is 13. a. Compute the 95% confidence interval for the population mean (to 1 decimal). b. Assume that the same sample mean was obtained from a sample of 120 items. Provide a 95% confidence interval for the population mean (to 2 decimals). c. What is the effect of a larger sample size on the margin of error?
A simple random sample of 60 items resulted in a sample mean of 71. The population...
A simple random sample of 60 items resulted in a sample mean of 71. The population standard deviation is 14. a. Compute the 95% confidence interval for the population mean (to 1 decimal). b. Assume that the same sample mean was obtained from a sample of 120 items. Provide a 95% confidence interval for the population mean (to 2 decimals). c. What is the effect of a larger sample size on the margin of error?
A simple random sample of 60 items resulted in a sample mean of 71. The population...
A simple random sample of 60 items resulted in a sample mean of 71. The population standard deviation is 13. a. Compute the 95% confidence interval for the population mean (to 1 decimal). ( , ) b. Assume that the same sample mean was obtained from a sample of 120 items. Provide a 95% confidence interval for the population mean (to 2 decimals). ( , ) c. What is the effect of a larger sample size on the margin of...