Part (1) What is the p-value? (Round your answer to four decimal places.) Enter a number. Part (g) ⒸPart (h) Part (1) Explain what the p-value means for this problem. O If Ho is true, then there is a chance equal to the p-value that the sample mean salary of mechanical engineers is at least $800 less than the sample mean salary of electrical engineers. O If H, is false, then there is a chance equal to the p-value that the sample mean salary of mechanical engineers is $800 more than the sample mean salary of electrical engineers. O If He is false, then there is a chance equall to the p-value that the sample mean salary of mechanical engineers is at least $800 less than the sample mean salary of electrical engineers. O If Ho is true, then there is a chance equall to the p-value that the sample mean salary of mechanical engineers is $800 more than the sample mean salary of electrical engineers. Submit Answer to two Explain how you determined which distribution to use. O The t-distribution will be used because the samples are dependent. The standard normal distribution will be used because the samples involve the difference in proportions. O The standard normal distribution will be used because the samples are independent and the population standard deviation is known. O The t-distribution will be used because the samples are independent and the population standard deviation is not known. Viewing Saved Work Revert to Last Response Submit Assignment Save Assignment Progress Home My Assignments Request Extension

Need help with ONLY part (d) on this Intro to probability and statistics homework problem. Below the homework problem is the answers from the textbook. Make sure your handwriting is neat and readable.

could you write out steps for b and c please

7:19 APPLICATION QUESTIONS Directions: This class is like a series of word problems. Not only with the problems be in words, but also you will have to explain what the statistical results mean in words. Therefore, the skill of going from words to math and math to words will be crucial. Write the italicized portion of each statement in mathematical notation. Only the italicized portion needs to be translated into notation: 5G UC lll 23% Example: Test whether the mean of a population is 12. Answer: μ = 12 13. A researcher took a sample. The mean of the sample was 192. 14. They assumed that the population standard deviation was 0.174. 15. An analyst wanted to test whether the population mean was more than 25. 16. A sample was taken and its standard deviation was 7.3. 17. A sample of 30 tax returns was taken, so the sample size is 30. 18. Is the mean of this population smaller than 14? 19. A researcher argued that the population mean was not 215. 20. Test whether the population proportion…

Need help with this Intro to probability and statistics homework problem. Below the homework problem is the answers from the textbook. Make sure your handwriting is neat and readable.

Fill in the blank. A p-value is the probability Choose the correct answer below. O A. Ap-value is the probability that the null hypothesis is true. B. A p-value is the probability of observing the actual result, a sample mean, for example, or something more unusual just by chance if the null hypothesis is false. c. Ap-value is the probability of observing the actual result, a sample mean, for example. D. A p-value is the probability of observing the actual result, a sample mean, for example, or something more unusual just by chance if the null hypothesis is true.

Some states now allow online gambling. As a marketing manager for a casino, you need to determine the percentage of adults in those states who gamble online. How many adults must you survey in order to be 90% confident that your estimate is in error by no more than one percentage point? Complete parts (a) and (b) below. a. Assume that nothing is known about the percentage of adults who gamble online. n=0 (Round up to the nearest integer.) b. Assume that 18% of all adults gamble online. n= (Round up to the nearest integer.)

ind the number of successes x suggested by the given​ statement:   From a​ CNN/USA Today/Gallup​ poll: Among 1299   survey​ subjects, 13.7 ​% say that the opinion of a celebrity would influence their own opinion. x​ = nothing   ​(round off to a whole​ number)