Use the following results from a test for marijuana use, which is provided by a certain drug testing company. Among 144 subjects with positive test results,there are 23 false positive results. Among 160 negative results, there are 2 false negative results. Complete parts (a) through (c). (Hint: Construct a table.)jpa. How many subjects were included in the study?The total number of subjects in the study wasEnter your answer in the answer box and then click Check Answer.partsMAR411,449483.étv A O w

Total number of subjects with a positive test result = 144Total number of subjects with a negative…

Answered: Use the following results from a test…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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I would appreciate the help. A tutor helped and he got it wrong, hoping that u can get it right.
A survey was given to a group of ACC students. Which of the following variables are numerical? Check all that apply. O number of semesters attended O owns a computer age O hours of credit earned last semester O preferred campus O support ACC president or not
Use the following for the next two questions: The Hershey Company wants to know if it is doing better in the US than its biggest competitor, Nestle, during their biggest sales month of October. A random sample of 50 US grocery stores are chosen and their October, 2020 sales records are collected. Let ???? and ???? be the true average sales in millions of dollars of Hershey and Nestle products sold in US grocery stores during October, 2020 respectively. The 95% confidence interval for ???? − ???? from our sample data is (54, 346) millions of dollars What is the difference in the sample means ??̅?? − ??̅??? Round to the nearest whole number. 200
Can you please help with all 3 parts of this question: To test for a relationship between gender and souvenir shopping, a survey of more than 2,000 tourists was conducted. One question asked how often a tourist purchases photographs, postcards, or paintings of the region visited. Responses were recorded as “always”, “often”, “occasionally”, or “rarely or never”. The table shows the number of tourists responding in each category by gender. Male Female Aways 275 445 Often 420 500 Occasionally 390 425 Rarely or never 305 230 a. Give the marginal distribution of responses. b. Give the conditional distribution of responses for each gender. Do you think there is a relationship between gender and souvenir purchase frequency? c. Test for a relationship between gender and souvenir purchase frequency at a significance level of 0.1.
Use the following results from a test for marijuana use, which is provided by a certain drug testing company. Among 141 subjects with positive test results, there are 23 false positive results. Among 157 negative results, there are 4 false negative results. Complete parts (a) through (c). (Hint: Construct a table.) a. How many subjects were included in the study? The total number of subjects in the study was
Researchers wanted to know the effectiveness of a new allergy medicine. A study was conducted on 500 adults who experience allergy symptoms. Each adult was randomly assigned to receive the new allergy medicine or a placebo. Researchers recorded whether or not their symptoms improved within 1 week. a. Complete the two-way table summarizing the findings. Allergy Medicine Placebo Total Symptoms Improved 85 80 Symptoms DidNot Improve Total 215 285 500 b. Use the study results to complete the following. Round your answer to the nearest tenth of a percent, as needed. Notice the percent sign is already included, so you just need to type the number. What percent of the adults in this study were given the new allergy medicine? % What percent of those who experienced improvements received the allergy medicine? % What percent of those who received the allergy medicine experienced improvements? % What percent of those who did not received the allergy…
Use the following results from a test for marijuana use, which is provided by a certain drug testing company. Among 141 subjects with positive test results, there are 30 false positive results. Among 155 negative results, there are 3 false negative results. Complete parts (a) through (c). (Hint: Construct a table.) a. How many subjects were included in the study? The total number of subjects in the study was b. How many subjects did not use marijuana? A total of subjects did not use marijuana. c. What is the probability that a randomly selected subject did not use marijuana? The probability that a randomly selected subject did not use marijuana is (Do not round until the final answer. Then round to three decimal places as needed.)
Use the following results from a test for marijuana use, which is provided by a certain drug testing company. Among 143 subjects with positive test results, there are 30 false positive results. Among 155 negative results, there 3 false negative results. Complete parts (a) through (c). (Hint Construct a table.) a. How many subjects were included in the study? The total number of subjects in the study was
Read the following write up and asnwer the questions. Mary loves baking; she started selling home-baked cake online. She conducted a consumer market research for the marketability of home-baked cake. She received information provided by 150 respondents. The findings on the level of acceptance for home-baked cake: 75% responded “highly favorable” and only 6% responded “not favorable”. The result also revealed that 92 respondents said they would purchase her home-baked cake. c. What could be the conclusion regarding the estimated marketability (in %) of home-baked cake in the population? d. Is this an example of descriptive statistics or inferential statistics? Explain.
Use the following results from a test for marijuana use, which is provided by a certain drug testing company. Among 140 subjects with positive test results, there are 22 false positive results. Among 152 negative results, there are 2 false negative results. Complete parts (a) through (c). (Hint: Construct a table.) a. How many subjects were included in the study? The total number of subjects in the study was b. How many subjects did not use marijuana? A total of subjects did not use marijuana. c. What is the probability that a randomly selected subject did not use marijuana? The probability that a randomly selected subject did not use marijuana is. (Do not round until the final answer. Then round to three decimal places as needed.)
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I can't understand why the data is the percentage of surveyed parents.

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