Question

In: Statistics and Probability

The following hypothesis test is run, where Ho: p = 0.2 Ha: p ≠ 0.2 p^=...

The following hypothesis test is run, where Ho: p = 0.2 Ha: p ≠ 0.2 p^= 0.25 and n = 60 . Calculate the p-value. Can we reject the null hypothesis at the 1% significance level? Show required work. Find and answer the following questions.

1. Z-statistic (enter only the answer as 4 decimals)

2. P-value (enter only the answer as 4 decimals)

3. Conclusion (enter Reject Ho or Fail to Reject Ho)

Solutions

Expert Solution

please like ??


Related Solutions

Perform the following hypothesis test of a proportion: HO: p = 0.125 HA: p  0.125 The sample...
Perform the following hypothesis test of a proportion: HO: p = 0.125 HA: p  0.125 The sample proportion is 0.1 based on a sample size of 95. Use a 10% significance level. The critical values of the test statistic that divide the rejection and non-rejection regions are  what value? 5 points    QUESTION 5 Continuing with Problem #4 (the previous problem): What is the value of the test statistic? (Give your answer rounded to 2 decimals) (Be careful to make sure your...
instructions: For any hypothesis test, be sure to state your Ho and Ha, test statistic, p-value,...
instructions: For any hypothesis test, be sure to state your Ho and Ha, test statistic, p-value, and conclusion the words of the problem. For any confidence interval be sure to interpret the interval in the words of the problem. Round answers to the thousandths place. 2b) A study is done to determine if Company A retains its workers longer than Company B. Company A samples 20 workers, and their average time with the company is five years with a standard...
For any Hypothesis Test make sure to state Ho, Ha, Test statistic, p-value, whether you reject...
For any Hypothesis Test make sure to state Ho, Ha, Test statistic, p-value, whether you reject Ho, and your conclusion in the words of the claim. For any confidence interval make sure that you interpret the interval in context, in addition to using it for inference. Round to the thousandths place The USDA is concerned that most farmers are older Americans. In 2000, it was reported that 25% of all US farmers were over the age of 65. In 2020,...
For any Hypothesis Test make sure to state Ho, Ha, Test statistic, p-value, whether you reject...
For any Hypothesis Test make sure to state Ho, Ha, Test statistic, p-value, whether you reject Ho, and your conclusion in the words of the claim. For any confidence interval make sure that you interpret the interval in context, in addition to using it for inference. round to the thousandths place The Ajax Company just bought a new machine that makes boots. In a random sample of forty boots produced by the new machine, they find that the mean weight...
For any Hypothesis Test make sure to state Ho, Ha, Test statistic, p-value, whether you reject...
For any Hypothesis Test make sure to state Ho, Ha, Test statistic, p-value, whether you reject Ho, and your conclusion in the words of the claim. For any confidence interval make sure that you interpret the interval in context, in addition to using it for inference. Round to the thousandths place A survey is given to 300 random SCSU students to determine their opinion of being a “Tobacco Free Campus.” Of the 300 students surveyed, 228 were in favor a...
Consider the following hypothesis test: Ho: u = 15 Ha: u ≠ 15 A sample of...
Consider the following hypothesis test: Ho: u = 15 Ha: u ≠ 15 A sample of 40 provided a sample mean of 14.17. The population standard deviation is 3. Enter negative value as negative number A. compute the value of the test statistic (to 2 decimals) B. what is the p-value (to 4 decimals)? use the value of the test statistic rounded to 2 decimal places in your calculations C. using a=0.05, can it be concluded that the population mean...
Consider the following hypothesis test: Ho: u= 45 Ha: u (no equal to) 45 Assume the...
Consider the following hypothesis test: Ho: u= 45 Ha: u (no equal to) 45 Assume the population standard deviation is 5.2. A sample of 36 is used, the sample mean is 44. Find the test statistic, p-value and state your conclusion. Use a= 0.05 a. Test statistic b. P-Value: c. Conclusion
For each of the following studies, write a null hypothesis (Ho) and an alternative hypothesis (Ha)....
For each of the following studies, write a null hypothesis (Ho) and an alternative hypothesis (Ha). For each part, also indicate whether you have written a one-tailed or two-tailed alternative hypothesis. a. An organizational psychologist examined whether an office redesign would change employees’ satisfaction levels. b. A forensic cognitive psychologist wondered whether repetition of false information would increase the tendency to develop false memories on average. c. A clinical psychologist studied whether structured assessments of therapy would lead to a...
Consider the following hypothesis test: H0: p ≥ 0.75 Ha: p < 0.75 A sample of...
Consider the following hypothesis test: H0: p ≥ 0.75 Ha: p < 0.75 A sample of 300 items was selected. Compute the p-value and state your conclusion for each of the following sample results. Use α = .05. Round your answers to four decimal places. a. p = 0.67   p-value _____? b. p = 0.75 p-value _____? c. p = 0.7 p-value _____? d. p = 0.77 p-value _____?
Consider the following hypothesis test. H0: p = 0.30 Ha: p ≠ 0.30 A sample of...
Consider the following hypothesis test. H0: p = 0.30 Ha: p ≠ 0.30 A sample of 400 provided a sample proportion p = 0.275. (a) Compute the value of the test statistic. (Round your answer to two decimal places.) ______ (b) What is the p-value? (Round your answer to four decimal places.) p-value =_____ (c) At α = 0.05, what is your conclusion? Reject H0. There is insufficient evidence to conclude that p ≠ 0.30. Reject H0. There is sufficient...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT