NCAA Football Coach Salaries: A simple random sample of 40 salaries of NCAA football coaches in...
NCAA Football Coach Salaries: A simple random sample of 40 salaries of NCAA football coaches in NCAA has a mean of $459,953 and standard deviation of $39,000. Use a 0.05 significance level to test the claim that the mean salary of a football coach in NCAA is less than $480,000.
What is the null hypothesis? What is the alternative hypothesis?
What is the p-value and the test statistic?
Do we reject the null or fail to reject the null?
Write a conclusion.
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NCAA Football Coach Salaries: A simple random sample of 40
salaries of NCAA football coaches in...
SECTION 7 - 2 1. A simple random sample of 39 salaries of NCAA football coaches...
SECTION 7 - 2 1. A simple random sample of 39 salaries of NCAA football coaches has a mean of $416,953 with standard deviation $462,364. Construct a 95% confidence interval estimate of the mean salary of an NCAA football coach. 2. In a test of weight loss programs, 27 adults used the Atkins weight loss program. After 12 months, their mean weight loss was found to be 2.4 lb, with a standard deviation of 4.7 lb. Construct a 90% confidence...
Assume that a simple random sample has been selected from a normally distributed population and test...
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a sample of 106 body temperatures has a mean of 98.20 oF and a standard deviation...
a sample of 106 body temperatures has a mean of 98.20 oF and a standard deviation of 0.62 oF. use a 0.05 significance level to test the claim that the mean body temperature of the population is equal to 98.6 oF, as is commonly believed. Find the following: A. Original claim: B. Opposite claim: C. alternative and Null Hypothesis: D. significance level: E. test statistic: F. P-vaule G. reject or fail to reject: H. final conclusion:
A coach records the results of the coin toss at the beginning of each football game...
A coach records the results of the coin toss at the beginning of each football game for a season. The results are shown where H represents heads and T represents tails The coach claimed the tosses were not random Use the runs test for α: 05 to complete parts (a) through (e). HTTTTTHHHTTHTHHT Click on the icon to view the table of critical values for the number of runs G a. Write the claim mathematically and identify Ho and H1....
Assume that a simple random sample has been selected from a normally distributed population and test...
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A simple random sample of size n=40 is drawn from a population. The sample mean is...
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The health of employees is monitored by periodically weighing them in. A sample of 54 employees...
The
health of employees is monitored by periodically weighing them in.
A sample of 54 employees has a mean weight of 183.9 lb... SOLVE
PICTURE
Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. 9) The health of employees is monitored by periodically weighing them in. A sample of 54 9) employees has a mean weight of 183.9 lb. Assuming that σ is known to be 121.2...
A simple random sample of 1088 adults is conducted. It is found that 261 of the...
A simple random sample of 1088 adults is conducted. It is found that 261 of the 1088 adults smoke. Use a .05 significance level to test the claim that the proportion of adult smokers is at least 20%. (a) Find the null and alternative hypothesis. (b) determine if the test is a right-tail test, left-tail test, or a two-tail test. (c) Find the test statistics. (d) find the p-value. (e) do you reject the null hypothesis or fail to reject...
Assume that a simple random sample has been selected from a normally distributed population and test...
Assume that a simple random sample has been selected from a normally distributed population and test the given claim. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. A coin mint has a specification that a particular coin has a mean weight of 2.5 g. A sample of 33 coins was collected. Those coins have a mean weight of 2.49615 g and a standard deviation of 0.01242 g. Use a...
Assume that a simple random sample has been selected from a normally distributed population and test...
Assume that a simple random sample has been selected from a normally distributed population and test the given claim. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. In a manual on how to have a number one song, it is stated that a song must be no longer than 210 seconds. A simple random sample of 40 current hit songs results in a mean length of 228.9 sec and...
SECTION 7 - 2 1. A simple random sample of 39 salaries of NCAA football coaches has a mean of $416,953 with standard deviation $462,364. Construct a 95% confidence interval estimate of the mean salary of an NCAA football coach. 2. In a test of weight loss programs, 27 adults used the Atkins weight loss program. After 12 months, their mean weight loss was found to be 2.4 lb, with a standard deviation of 4.7 lb. Construct a 90% confidence...
Assume that a simple random sample has been selected from a normally distributed population and test the given claim. Identify the null and alternative hypotheses test statistic, P-value, and state the final conclusion that addresses the original claim. A simple random sample of 25 filtered 100 mm cigarettes is obtained, and the tar content of each cigarette is measured. The sample has a mean of 18.6 mg and a standard deviation of 3.84 mg. Use a 0.05 significance level to...
A coach records the results of the coin toss at the beginning of each football game for a season. The results are shown where H represents heads and T represents tails The coach claimed the tosses were not random Use the runs test for α: 05 to complete parts (a) through (e). HTTTTTHHHTTHTHHT Click on the icon to view the table of critical values for the number of runs G a. Write the claim mathematically and identify Ho and H1....
The
health of employees is monitored by periodically weighing them in.
A sample of 54 employees has a mean weight of 183.9 lb... SOLVE
PICTURE
Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. 9) The health of employees is monitored by periodically weighing them in. A sample of 54 9) employees has a mean weight of 183.9 lb. Assuming that σ is known to be 121.2...
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