A researcher is going to conduct an experiment in order to compare two drugs – a new drug and an old drug. The researcher would like to see whether there is sufficient evidence to say that the new drug is better than the old drug. In this problem, the researcher will commit a Type I error if:

There’s 5 parts to this question. Identify the test statistics, p-value, and what is the conclusion for this test?

The “Wild Safari” theme park allows visitors to drive their own vehicles across more than 400 acres of land that house thousands of freely roaming animals. At the entrance, a sign warns tourists that there is a 65% chance that a car will take some damage by an animal during the visit. We will use blue poker chips to represent cars that take some damage and yellow poker chips to represent cars that do not take some damage. We will use a total of 100 poker chips to simulate the null hypothesis model. How many of the 100 poker chips should be blue? A. 20 Poker Chips B. 50 Poker Chips C. 65 Poker Chips

Rabbani company is a company that sells Muslim clothing. In their products for sale, there are two types of veil production different. The production manager stated that both types have the same percentage of damage/defects. To test the statement taken sample of 300 items from the first product and it turns out that there are 38 items that disabled. Meanwhile, from the second product, 400 items were taken as samples There are 56 defective items. With ?= 1% can the sample obtained be used as evidence to justify the statement?

PLEASE HELP, IT'S TRUE OR FALSE...   *Telephone surveys have an advantage over personal interview surveys in that they are less costly. Also, people may be more candid in their opinions since there is no face-to face contact. *A major drawback to the telephone survey is that some people in the population will not have phones or will not answer when the calls are made; hence, not all people have a chance of being surveyed. Also, many people now have unlisted numbers and cell phones, so they cannot be surveyed. Finally, even the tone of voice of the interviewer might influence the response of the person who is being interviewed. *Mailed questionnaire surveys can be used to cover a wider geographic area than telephone surveys or personal interviews since mailed questionnaire surveys are less expensive to conduct. Also, respondents can remain anonymous if they desire. *Disadvantages of mailed questionnaire surveys include a low number of responses and inappropriate answers to questions.…

What are the 2 variables being correlated (or assumed correlated) in the Hypothesis Statement?

What do patients value more when choosing a doctor: i nterpersonal skills or technical ability? in a recent study, 304 people were asked to choose a physician based on two hypothetical descriptions. One physician was described as having high technical skills and average interpersonal skills, and the other was described as having average technical skills and high interpersonal skills. The physician with high interpersonal skills was chosen by 116 of the people. Can you conclude that less than half of patients prefer a physician with high interpersonal skills? Use the α= 0.05 level of significance.

A research group interested in comparing the effect of different types of music on short-term memory gathers 200 volunteers for a study. One group will listen to a hip hop music playlist while trying to memorize a list of 20 words. A second group will listen to a playlist of orchestral music while trying to memorize the list of 20 words. After a break, the number of words recalled correctly by each individual is measured and the results for the two groups are compared.     6) Is this an experimental study or an observational study?   a) Experimental study   b) Observational study     7) Explain your reasoning.     8) Which group do you hypothesize will recall more words?     9) Explain your reasoning.       10) Here are some options for splitting the volunteers into groups. Which method will best address the intention of the study?   a) Divide groups based on their preferred music style.   b) Divide…

A doctor wanted to study the effect of four different treatments on mental health. A group of 100 adults experiencing depression volunteered for the study. The doctor randomly assigned one-fourth of them to each of four groups. Group 1 followed a specific exercise plan, group 2 followed a specific diet plan, group 3 followed an exercise and diet plan, and group 4 did not follow any plan. After 4 weeks, the doctor contacted each participant and asked them if they felt any better. The results are displayed in the table.   The doctor would like to know if these data provide convincing evidence that the distribution of responses differs across the treatment groups in the population of all patients like these. Are the conditions for inference met? No, the random condition is not met. No, the 10% condition is not met. No, the Large Counts condition is not met. Yes, all three conditions for inference are met.

A doctor wanted to study the effect of four different treatments on mental health. A group of 100 adults experiencing depression volunteered for the study. The doctor randomly assigned one-fourth of them to each of four groups. Group 1 followed a specific exercise plan, group 2 followed a specific diet plan, group 3 followed an exercise and diet plan, and group 4 did not follow any plan. After 4 weeks, the doctor contacted each participant and asked them if they felt any better. The results are displayed in the table.    The doctor would like to know if these data provide convincing evidence that the distribution of responses differs across the treatment groups in the population of all patients like these. The random condition is met. The 10% condition is not needed because random sampling did not take place. This table of expected counts shows that all expected counts are at least 5.   What is the value of the chi-square test statistic? χ‑2 = 5.03 χ‑2 = 6.26 χ‑2 = 25.33 χ‑2 = 39.22