Question

2. Hypothesis Test Scenario 1 If you are provided the population standard deviation (sigma) and are...

2. Hypothesis Test Scenario 1

If you are provided the population standard deviation (sigma) and are testing the potential effect of a treatment on that population using sample data, then which of the following hypothesis tests should you use?

z-test (chapter 8)

single sample t-test (chapter 9)

independent samples t-test (chapter 10)

repeated measures t-test (chapter 11)

0 0
Add a comment Improve this question Transcribed image text
Answer #1

Answer:

z-test

Explanation:

For the given scenario, we need to use the z test for the population mean because we are given the value for the population standard deviation, if we are not given the value for the population standard deviation, then we use the t test instead of z test.

Add a comment
Know the answer?
Add Answer to:
2. Hypothesis Test Scenario 1 If you are provided the population standard deviation (sigma) and are...
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. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • How do you know if a hypothesis test is testing the claim between 2 population proportions or 2 means? How is the test...

    How do you know if a hypothesis test is testing the claim between 2 population proportions or 2 means? How is the test statistic for a claim about 2 population means, independent samples, standard deviations unknown, similar to the test statistic for 1 population mean, standard deviation unknown? If the difference between the 2 population means is not significant, which means the test statistic falls within the "usual" area of the distribution, what is the decision about the null hypothesis?...

  • Please create a specific business scenario which is appropriate for hypothesis testing of population mean with...

    Please create a specific business scenario which is appropriate for hypothesis testing of population mean with population standard deviation sigma given. Follow all the steps in the textbook (from hypothesis determination to result interpretation at least) to test the hypothesis.

  • If you were conducting a hypothesis test for means and the population standard deviation is unknown,...

    If you were conducting a hypothesis test for means and the population standard deviation is unknown, what critical value would you use: Z t F Q

  • 1. The average score on IQ tests is 100, with a standard deviation of 15. One...

    1. The average score on IQ tests is 100, with a standard deviation of 15. One of your clients scored 134. What percent of the population is likely to score higher? Group of answer choices 98.81% 27.36% 1.16% 48.81% 2. You work in the admission department of a small liberal-arts college in the Midwest. Scores from a standardized test are used as the primary method of determination of eligibility. The mean of that standardized test is 609, and the standard...

  • To test the effectiveness of a treatment, a sample of n = 36 people is selected...

    To test the effectiveness of a treatment, a sample of n = 36 people is selected from a normal population with mean of μ = 60. After the treatment is administered to the individuals in the sample, the sample mean is found to be M = 55. (a) If the population standard deviation is σ = 13, can you conclude that the treatment has a significant effect? Use a two-tailed test with α = 0.05. (Round your answers to two...

  • 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 10% significance level. x=37, n = 31, σ=9, H0 : μ=39, Ha: μ<39 EB Click here to view a partial table of areas under the standard normal curve. The test statistic is z- (Round to two decimal places as needed.)

  • 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...

  • PLEASE help ?? A researcher conducted a single sample t-test on results of an experiment with...

    PLEASE help ?? A researcher conducted a single sample t-test on results of an experiment with n = 18 participants and the computed t = -2.28. What is the correct conclusion from this experiment if p < 0.05, 2-tails test is used for hypothesis testing? O A. The researcher failed to reject the null hypothesis and concluded that there is a significant treatment effect. O B. The researcher rejected the null hypothesis and concluded that there is a significant treatment...

  • 5. A step-by-step hypothesis test for a repeated-measures design

    5. A step-by-step hypothesis test for a repeated-measures designConsider the following data from a repeated-measures design. You want to use a repeated-measures t test to test the null hypothesis H0: μD=0 (the null hypothesis states that the mean difference for the general population is zero). The data consist of five observations, each with two measurements, A and B, taken before and after a . treatment. Assume the population of the differences in these measurements are normally distributed.Complete the following table...

  • For the independent-measures t test, which of the following describes the estimated standard error of M1 - M2 (whose sy...

    For the independent-measures t test, which of the following describes the estimated standard error of M1 - M2 (whose symbol is )? O The variance across all the data values when both samples are pooled together O A weighted average of the two sample variances (weighted by the sample sizes) O The difference between the standard deviations of the two samples O An estimate of the standard distance between the difference in sample means (M, - M2) and the difference...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT