O Last year, 43% of business owners gave a holiday gift to their employees. A survey of business owners conducted this year indicates that 30% planned toprovide a holiday gift to their employees. Suppose the survey results are based on a sample of 70 business owners.a. How many business owners in the survey planned to provide a holiday gift to their employees this year? Round your answer to the nearest whole number.18b. Suppose the business owners in the sample do as they plan. Conduct a hypothesis test that can be used to determine whether the proportion of businessowners providing holiday gifts had decreased from last year.State the hypotheses.Hạ : p>0.43H.P-Select your answer0.43Compute the test statistic and p-value.-value(to 2 decimals)(to 4 decimals)pvalueC. Using a 0.05 level of significance, would you conclude that the proportion of business owners providing gifts decreased?Select your anewer Ho. WeSelect your answer conclude that the proportion of business owners providing gifts has decreased from last year tothis year.What is the smallest level of significance for which you could draw such a conciusion?(to 4 decimals)

Given, In a survey of 70 business owners, 30% planned to provide a holiday gift to their…

Answered: Last year, 43% of business owners gave…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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5. Been to the movies lately? (3.5) An opinion poll calls 2000 randomly chosen residential telephone numbers, then asks to speak with an adult member of the household. The interviewer asks, "Box-office revenues are at an all-time high. How many movies have you watched in a movie theater in the past 12 months?" In all, 1131 people responded. The researchers used the responses to estimate the mean number of movies adults have watched in a movie theater in the past 12 months. A) Describe a potential source of bias related to the wording of the question. Suggest a change that would help fix this problem. B) Describe how using only residential phone numbers might lead to bias and how this will affect the estimate.
61. Design (4.2) Was this an observational study or an experiment? Justify your answer.
B and C please
One survey showed that among 766 randomly selected subjects who completed four years of college, 18.3% smoke and 81.7% do not smoke. Use a 0.01 significance level to test the claim that the rate of smoking among those with four years of college is less than the 27% rate for the general population. . Calculate the P-value. Which of these options is closest to the P-value? A. 0.0005 B. 0.9999 C. 0.5000 D. 0.0001 e. State the technical conclusion. A. Do not reject Upper H 0 B. Reject Upper H 0 f. State the final conclusion. A. The sample data support the claim. B. There is sufficient evidence to warrant rejection of the claim. C. There is not sufficient evidence to warrant rejection of the claim. D. There is not sufficient sample evidence to support the claim. g. Based on the results, does it appear that those who completed four years of college…
A marketing agency wanted to determine if a new commercial changed people's opinion about a company. They recruited n=30 participants to watch the commercial. First, everyone was givien a survey to determine their attitudes toward the company. Then, everyone watched the new commercial. Finally, they were given the same survey again and asked about their attitudes toward the comapny after seeing the commercial. The agency wanted to see if attitudes were changed by the commercial. What statistical test should they use?
06 * A research assistant randomly selected 75 undergraduate students from the list of all students enrolled in the psychology-degree program at a large university. She asked each of the 75 students, "How many minutes per day do you typically spend reading?" The mean reading time in the sample was 89 minutes, and the margin of error for this estimate was 4.28 minutes. Another research assistant intends to replicate the survey and will attempt to get a smaller margin of error. Which of the following samples will most likely result in a smaller margin of error for the estimated mean time students in the psychology-degree program read per day? O 40 randomly selected undergraduate psychology-degree program students 40 randomly selected undergraduate students from all degree programs at the college 300 randomly selected undergraduate psychology-degree program students 300 randomly selected undergraduate students from all degree programs at the college
Construct a confidence interval for the population proportion p. n ? 144, x ? 86, 90% confidence
Prof. Jacob wants to know, with 90% confidence, the proportion of students who like to eat in the cafeteria. A previous survey showed that 62% like to eat in the cafeteria. Prof. Jacob likes to be accurate with an error of 0.025 of its true proportion. What sample size does Prof. Jacob need?* A. 1,020 B. 1,020.06 C. 1,021 D. 1,022
TYPEWRITTEN ONLY PLEASE. ILL UPVOTE ONLY IF TYPEWRITTEN, COMPLETE, AND CORRECT. DONT ANSWER IF YOU ALREADY ANSWERED THIS, ILL DOWNVOTE. THANK YOU
- ? is also called Select one: Oa. Confidence coefficient Ob. Level of significance Oc. Size of the test d. Power of the test
A national study report indicated that 20.5% of Americans were identified as having medical bill financial issues. What if a news organization randomly sampled 400 Americans from 10 cities and found that 95 reported having such difficulty. A test was done to investigate whether the problem is MORE SEVERE among these cities. What is the p-value for this test? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a 0.4317 b 0.0537 0.2156 0.1074
A 20 question multiple choice exam was given to a class. The distribution below is for the number of wrong out of twenty. Number Wrong 0 1 2 3 4 5 6 7 8 P(X) ??? 0.07 0.1 0.14 0.13 0.2 0.17 0.03 0.01 Find the missing value from the table. 0.140.14 0.150.15 0.130.13 0.160.16

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