1. Please test hypothesis for a mean or for a proportion. Please state null and alternative...
1. Please test hypothesis for a mean or for a proportion. Please state null and alternative hypothesis
Hypothesized mean = 125, sample mean = 135, standard deviation = 15; n= 500, confidence level = 95%
2. Test Hypotheses of population percent = 33%， sample percent = 31%，n= 120， confidence level = 99%
Homework Answers
This is a test of a single mean
Add Answer to:
1. Please test hypothesis for a mean or for a proportion. Please
state null and alternative...
"Find the power of the test, when the Null Hypothesis assumes a population mean of Mu...
"Find the power of the test, when the Null Hypothesis assumes a population mean of Mu = 450, with a populaiion standard deviation of 156, the sample size is 5 and the true mean is 638.47 with confidence itnervals of 95%" "Find the power of the test, when the Null Hypothesis assumes a population mean of Mu = 644, with a populaiion standard deviation of 174, the sample size is 3 and the true mean is 744.04 with confidence itnervals...
"Find the power of the test, when the Null Hypothesis assumes a population mean of Mu...
"Find the power of the test, when the Null Hypothesis assumes a population mean of Mu = 450, with a populaiion standard deviation of 156, the sample size is 5 and the true mean is 638.47 with confidence itnervals of 95%" "Find the power of the test, when the Null Hypothesis assumes a population mean of Mu = 644, with a populaiion standard deviation of 174, the sample size is 3 and the true mean is 744.04 with confidence itnervals...
last option is population proportion The null and alternative hypotheses are given. Determine whether the hypothesis...
last option is population proportion
The null and alternative hypotheses are given. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed. What parameter is being tested? Ho 0 = 120 Hi 0 < 120 Is the hypothesis test left-tailed, right-tailed, or two-tailed? Right-tailed test Left-tailed test Two-tailed test What parameter is being tested? Population mean Population standard deviation Click to select your answer.
In a test of hypothesis, the null hypothesis is that the population mean is equal to...
In a test of hypothesis, the null hypothesis is that the population mean is equal to 90 and the alternative hypothesis is that the population mean is not equal to 90. The test is to be made at the 10% significance level. A sample of 100 elements selected from this population produced a mean of 84 and a standard deviation of 8. What is the value of the observed test statistic, z?
1. Conduct a test of the null hypothesis that the mean height for all students in...
1. Conduct a test of the null hypothesis that the mean height for all students in the Census at School database is equal to 155 cm vs the alternative that the mean Height is greater than 155 cm. Use a significance level of 0.05. a. State the null and alternative hypotheses. Ho: m = 155 Ha: m > 155 b. Provide the Statcrunch output table. Hypothesis test results: Variable Sample Mean Std. Err. DF T-Stat P-value Height 159.86 1.7311103 49...
STEP 2 State the Null and Alternative (Research) hypotheses NULL Hypothesis ALTERNATIVE Hypothesis Is this a...
STEP 2 State the Null and Alternative (Research) hypotheses NULL Hypothesis ALTERNATIVE Hypothesis Is this a one or two tailed test (if a one tailed test, what direction)? STEP 3 Define the elements of the problem What is the population or populations of interest? What is the sample? 3. The President claims that 100,000 jobs were created last month. You don't believe this claim is true, so you examine a sample of 1,000 records from the Bureau of Labor Statistics...
Hypothesis Problems For the following hypothesis tests: a. State the null (Ho) and alternative (Hi) hypotheses b. State the type of test (right-tailed, left-tailed, or two-tailed) c. State the m...
Hypothesis Problems For the following hypothesis tests: a. State the null (Ho) and alternative (Hi) hypotheses b. State the type of test (right-tailed, left-tailed, or two-tailed) c. State the multiplier for an a (level of significance) of .05. The Chamber of Commerce states that only 15% of Boston tourists stay more than 2 days. A new chamber employee feels that the percentage staying more than 2 days is greater than 15%, and plans to sample a set of tourists to...
1. You want to test whether you can reject the null hypothesis that a population mean...
1. You want to test whether you can reject the null hypothesis that a population mean is greater than or equal to 10. To do this, you collect a random sample of size 500 from the population, and you calculate that the sample mean and sample standard deviation are 8.6 and s, respectively. Which of the following is true? a. If s is any value between 11 and 13, you can reject the null hypothesis at the 5% significance level....
Step 1 of 4: State the null and alternative hypotheses for the test. Step 2 of...
Step 1 of 4:
State the null and alternative hypotheses for the test.
Step 2 of 4:
Compute the value of the test statistic. Round your answer to
two decimal places.
Step 3 of 4:
Determine the decision rule for rejecting the null hypothesis
H0H0. Round the numerical portion of your answer to three decimal
places.
Step 4 of 4:
Make the decision for the hypothesis test.
Question 9 of 15 Step 1 of 4 01:56:27 An engineer is comparing...
3. Testing a population mean The test statistic (Chapter 11) Aa Aa You conduct a hypothesis...
3. Testing a population mean The test statistic (Chapter 11) Aa Aa You conduct a hypothesis test about a population mean u with the following null and alternative hypotheses: Ho: u-25.8 H1: <25.8 Suppose that the population standard deviation has a known value of a observations, which provides a sample mean of % 30.7. 17.8. You obtain a sample of n =62 Since the sample size large enough, you assume that the sample mean X follows a normal distribution. Let...
last option is population proportion
The null and alternative hypotheses are given. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed. What parameter is being tested? Ho 0 = 120 Hi 0 < 120 Is the hypothesis test left-tailed, right-tailed, or two-tailed? Right-tailed test Left-tailed test Two-tailed test What parameter is being tested? Population mean Population standard deviation Click to select your answer.
STEP 2 State the Null and Alternative (Research) hypotheses NULL Hypothesis ALTERNATIVE Hypothesis Is this a one or two tailed test (if a one tailed test, what direction)? STEP 3 Define the elements of the problem What is the population or populations of interest? What is the sample? 3. The President claims that 100,000 jobs were created last month. You don't believe this claim is true, so you examine a sample of 1,000 records from the Bureau of Labor Statistics...
Hypothesis Problems For the following hypothesis tests: a. State the null (Ho) and alternative (Hi) hypotheses b. State the type of test (right-tailed, left-tailed, or two-tailed) c. State the multiplier for an a (level of significance) of .05. The Chamber of Commerce states that only 15% of Boston tourists stay more than 2 days. A new chamber employee feels that the percentage staying more than 2 days is greater than 15%, and plans to sample a set of tourists to...
Step 1 of 4:
State the null and alternative hypotheses for the test.
Step 2 of 4:
Compute the value of the test statistic. Round your answer to
two decimal places.
Step 3 of 4:
Determine the decision rule for rejecting the null hypothesis
H0H0. Round the numerical portion of your answer to three decimal
places.
Step 4 of 4:
Make the decision for the hypothesis test.
Question 9 of 15 Step 1 of 4 01:56:27 An engineer is comparing...
3. Testing a population mean The test statistic (Chapter 11) Aa Aa You conduct a hypothesis test about a population mean u with the following null and alternative hypotheses: Ho: u-25.8 H1: <25.8 Suppose that the population standard deviation has a known value of a observations, which provides a sample mean of % 30.7. 17.8. You obtain a sample of n =62 Since the sample size large enough, you assume that the sample mean X follows a normal distribution. Let...
Most questions answered within 3 hours.
-
BA Corp is issuing a 10-year bond with a coupon rate of 6.00
percent. The interest...
asked 50 seconds ago -
How does a cell control the cell cycle? Explain 4 different ways
that cell cycle is...
asked 6 minutes ago -
We have to write some code to simulate
rabbits population growth in Australia. We have determined...
asked 6 minutes ago -
Presidential Aviation has provided charter flights to a wide
array of customers, including business travelers worldwide....
asked 20 minutes ago -
Discuss the significance of accounting systems in generating
reliable accounting information (200 words)
asked 25 minutes ago -
McCracken Aerial,
Inc., produces and sells a unique type of TV antenna. The company
has just...
asked 39 minutes ago -
Write a program to prompt the user for hours and rate per hour
using input to...
asked 1 hour ago -
Hi, please help
1)Draw two molecules that could hydrogen bond with each other.
Draw and indicate...
asked 1 hour ago -
Using Java, I created 3 files, Pizza,PizzaOrder, and
PizzaOrder_Demo that I attached down below. But I...
asked 1 hour ago -
a. An 8-bit successive approximation ADC has a reference voltage
of 10 V. Calculate the resolution...
asked 1 hour ago -
The distance between the two hydrogen nuclei in the H2 molecule
is 110 pm (picometer). How...
asked 1 hour ago -
write an article about drone effect on
construction safety.
asked 1 hour ago