In your environment (I work as a secretary in a media company), please describe a hypothesis...
In your environment (I work as a secretary in a media company), please describe a hypothesis test related to a decision.
What would be your data? What would be your null hypothesis? What would be your alternate hypothesis? What would be your Type 1 and Type 2 errors relative to your decision? S
Suppose you have a p-value of 0.01, what does this mean relative to your problem and decision? Suppose the p-value is 0.20, what does this mean relative to your problem and decision?
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In your environment (I work as a secretary in a media company),
please describe a hypothesis...
SITUATION HYPOTHESIS TESTING TOOL: I work at a radio station that also has an app, where you can ...
SITUATION HYPOTHESIS TESTING TOOL: I work at a radio station that also has an app, where you can upgrade to a premium product. The premium app makes it possible to swipe away more songs you don’t like. The data will be relating to the age of the costumers buying premium packages. (The age is very important for our radio station, as we are targeting a very young audience). Null Hypothesis & Alternate Hypothesis: H0 : μ = 20 H1: μ...
Test the hypothesis at α = 0.01 Describe what type I errors are in this context....
Test the hypothesis at α = 0.01 Describe what type I errors are
in this context. Compute the p-value for this test.
A 2 sided Confidence Interval for the mean is, in analogy to the 2-sided hypothesis test, a range of values under which you would fail to reject the null hypothesis By rewriting this statement about the rejection region, under the assumption the null hypothesis is true: into a statement about the interval for μ you construct the 2-sided...
13) Determine the decision criterion for rejecting the null hypothesis in the given hypothesis test; i.e.,...
13) Determine the decision criterion for rejecting the null hypothesis in the given hypothesis test; i.e., describe the values of the test statistic that would result in rejection of the null hypothesis. Suppose you wish to test the claim that μd, the mean value of the differences d for a population of paired data, is greater than 0. Given a sample of n = 15 and a significance level of α = 0.01, what criterion would be used for rejecting...
4) A researcher is testing a hypothesis of a single mean. The critical z value for...
4) A researcher is testing a hypothesis of a single mean. The critical z value for α = .05 and a two tailed test is ±1.96. The observed z value from sample data is minus2.11. The decision made by the researcher based on this information is to _____ the null hypothesis. reject fail to reject redefine change the alternate hypothesis into restate 5) A researcher is testing a hypothesis of a single mean. The critical z value for α =...
Many students brag that they have more than 125 friends on a social media website. For...
Many students brag that they have more than 125 friends on a social media website. For a class project, a group of students asked a random sample of 13 students at their college who used the social media website about their number of friends and got the data available below. Is there strong evidence that the mean number of friends for the student population at the college who use the social media website is larger than 125? 110 40 250...
A sample of 36 observations is selected from a normal population. The sample mean is 12 and...
A sample of 36 observations is selected from a normal population. The sample mean is 12 and the population standard deviation is 3. The null hypothesis: the mean is equal to 10. The alternate hypothesis: the mean is greater than 10. Please test the null hypothesis at the .01 significance level. (Show your work for credit.) Is this a one- or a two tailed test? __________ What is your decision rule (include the critical value of z). What is the value of the test statistic...
Describe a hypothesis test study that would help your work in OB GYN (STD's)( Nursing) or...
Describe a hypothesis test study that would help your work in OB GYN (STD's)( Nursing) or conclusions in some way. Describe what variable would be tested and what would be your guess of the value of that variable. Then include how the result, if the null were rejected or not, might change your conclusions or actions in some way.
1. What are null hypothesis and alternative hypothesis? 2. Inastatisticaltest,wehavethechoiceofatwo-tailedtest,aleft- tailed test, or a right-tailed test. Which hypothesis is the determining factor fo...
1. What are null hypothesis and alternative hypothesis? 2. Inastatisticaltest,wehavethechoiceofatwo-tailedtest,aleft- tailed test, or a right-tailed test. Which hypothesis is the determining factor for choosing the direction of the test? (In other words, how would you decide it) 3. Forthesamesampledataandnullhypothesis,howdoesthe P-value for a two-tailed test compare to that for a one-tailed test? 4. Using P-value method, how would you reject or fail to reject the null hypothesis? (what is the decision criteria?) How does level of significance matter to the hypothesis...
On your first day on the job, your boss asks you to conduct a hypothesis test...
On your first day on the job, your boss asks you to conduct a hypothesis test about the mean dwell time of a new type of UAV. Before you arrived, an experiment was conducted on ? = 5 UAVs (all of the new type) resulting in a sample mean dwell time of ?1 = 10.4 h????. The goal is to conclusively demonstrate, if possible, that the data supports the manufacturer’s claim that the mean dwell time is greater than 10...
You set up a two-sided hypothesis test for a population mean μ with a null hypothesis...
You set up a two-sided hypothesis test for a population mean μ with a null hypothesis of H0:μ=100. You chose a significance level of α=0.05. The p-value calculated from the data is 0.12, and hence you failed to reject the null hypothesis. Suppose that after your analysis was completed and published, an expert informed you that the true value of μ is 104. How would you describe the result of your analysis? A) A Type 1 error was made because...
Test the hypothesis at α = 0.01 Describe what type I errors are
in this context. Compute the p-value for this test.
A 2 sided Confidence Interval for the mean is, in analogy to the 2-sided hypothesis test, a range of values under which you would fail to reject the null hypothesis By rewriting this statement about the rejection region, under the assumption the null hypothesis is true: into a statement about the interval for μ you construct the 2-sided...
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