Consider the following hypothesis test. Ho: μ = 22 H₂: μ#22 A sample of 75 is used and the population standard deviation is 10. Compute the p-value and state your conclusion for each of the following sample results. Use a = 0.01. (Round your test statistics to two decimal places and your p-value to four decimal places.) (a) x = 23 Find the value of the test statistic. Find the p-value. p-value= State your conclusion. O Reject Ho. There is insufficient evidence to conclude that μ* 22. O Do not reject Ho. There is sufficient evidence to conclude that μ # 22. O Reject Ho. There is sufficient evidence to conclude that μ # 22. O Do not reject Ho. There is insufficient evidence to conclude that # # 22. (b) x = 25.2 Find the value of the test statistic. Find the p-value. p-value= State your conclusion. O Reject Ho. There is insufficient evidence to conclude that μ* 22. Do not reject Ho. There is sufficient evidence to conclude that # # 22. O Reject Ho. There is sufficient evidence to conclude that μ* 22. O Do not reject Ho. There is insufficient evidence to conclude that μ # 22.

ES We want to conduct a hypothesis test of the claim that the population mean germination time of strawberry seeds is different from 19.2 days. So, we choose a random sample of strawberries. The sample has a mean of 19 days and a standard deviation of 1.4 days. For each of the following sampling scenarios, choose an appropriate test statistic for our hypothesis test on the population mean. Then calculate that statistic. Round your answers to two decimal places. (a) The sample has size 19, and it is from a normally distributed population with an unknown standard deviation. O z = t = It is unclear which test statistic to use. (b) The sample has size 16, and it is from a population with a distribution about which we know very little. = Z t = It is unclear which test statistic to use.

You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=72.1σ=72.1. You would like to be 99% confident that your estimate is within 2 of the true population mean. How large of a sample size is required?

answer 1

Need help finding what t= to

answer 3

The output below is for a t-test for the hypothesis: Individuals living in bad neighborhoods commit more crime than those living in good neighborhoods. The data in the Group Statistics section provides you with the average number of crimes committed by individuals living in good and bad neighborhoods and the standard deviation of this same variable. The findings of significance are located in the Independent Samples Test section. Pay particular attention to the "t" column and the "Sig (2-tailed)"column. The "t" column is the t value that you would have calculated by hand (as we learned in class). The "Sig (2-tailed)"column provides you with the p value (the level of significance of this relationship). In this column, any value below .05 indicates that you would have rejected your null hypothesis. 1. Can someone tell me about the relationship of all these data? I'm trying to determine if my hypothesis, listed below, can be proven or disproven? 2. What is the independent variable and…

If someone could help me answer this that would be great.

You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=21.8σ=21.8. You would like to be 98% confident that your estimate is within 0.8 of the true population mean. How large of a sample size is required?n = Do not round mid-calculation.

You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=40.4σ=40.4. You would like to be 90% confident that your estimate is within 1.5 of the true population mean. How large of a sample size is required? n=