EspañolTry AgainYour answer is incorrect.The proportion of residents in a community who recycle has traditionally been 65%. A policy maker claims that the proportion is lessthan 65 % now that one of the recycling centers has been relocated, and the policy maker wishses to carry out a hypothesis test.State the null hypothesis H, and the alternative hypothesis H, that the policy maker would use for this test.Ho: 0.65AaH: 0.65SO

The proportion of residents in a community who recycle has traditionally been 65%. A policy maker…

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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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When conducting a hypothesis test, what would it mean if the researcher obtains a negative test statistic? The sample is too small. It’s very unlikely the results would have occurred just by chance alone. The sample statistic is smaller than the claimed population parameter. A mistake was made in terms of calculating the test statistic. The sample statistic is larger than the claimed population parameter.
A recent Food and Drug Administration (FDA) report states that 65% of all domestically produced food products are pesticide free. Suppose an FDA spokesperson believes that less than 65% of all foreign produced food products are pesticide free. Specify the null and alternative hypotheses that would be used to test the spokesperson’s belief
Suppose you have a hypothesis test which never rejects the null hypothesis, no matter the value of the test statistic. Name a potential problem with such a test. Select one: a. There can be no problem with such a hypothesis test, this is the ideal scenario. b. Using this test would lead to making an excessive number of Type I errors. c. Using this test would lead to making an excessive number of Type II errors.
In a hypothesis test, the null hypothesis states that the population proportion of individuals who support a certain political candidate is equal to 0.6. A sample of size 400 is taken and 175 individuals support the candidate. What is the Z-score for this hypothesis test?
While continuing to keep abreast of local trends in education, a school administrator read an article that reported only 42% of high school students study on a regular basis. He claims that this percentage is too low for his district. State the null and alternative hypotheses for the given scenario.
9) In 2015, the average math SAT score for students at South Hanover High School was 520. Five years later, a teacher wants to perform a hypothesis test to determine whether the average math SAT score of students at the school has changed since 2015. The hypotheses are: 12) A state fish hatchery raises trout for stocking streams and lakes. The size of the fish at release time can be controlled to a fair degree by varying the rate of feeding. The target is a mean of 10 ounces; if the fish are too small, those who catch the fish aren't happy. A random sample of 75 fish were weighed at time of release and it was determined that the mean was 9.66 ounces with a standard deviation of 0.86 ounces. Test to determine if the fish being released have a population mean less than 10 ounces at the 0.01 significance level. Ho : H = 520 Ha : µ # 520 Suppose that the results of the sampling lead to acceptance of the null hypothesis. Classify that conclusion as a Type I Error, a Type II Error, or a…
A teacher believes that the percentage of students at her high school who go on to college is higher than the rate in the general population of high school students. The rate in the general population of high school students is 30%. In the most recent graduating class at her high school, the teacher found that 90 students graduated and that 40 of those went on to college. Please use the chi-square test to design a complete hypothesis testing process and get appropriate conclusions. (You need to indicate the value of X2obt and df and X2cv)
The board of directors for Procter and Gamble is concerned that only 19% of the people who use toothpaste buy Crest toothpaste. A marketing director suggests that the company invest in a new marketing campaign which will include advertisements and new labeling for the toothpaste. The research department conducts product trials in test markets for one month to determine if the market share increases with new labels. Write the company's null and alternative hypotheses. Ho: In this context describe a Type I error and the impact such an error would have on the company. O Rejecting the null hypothesis when in fact it is true O Failing to reject the null hypothesis when in fact it is false In this context describe a Type Il error and the impact such an error would have on the company. O Rejecting the null hypothesis when in fact it is true O Failing to reject the null hypothesis when in fact it is false Based on the data they collected during the trial the research department found that a…
As part of an investigation into motorway accidents in Greater Manchester, it was hypothesised that weather conditions were an important factor. Research revealed that in wet weather the M60, M61 and M62 experienced 32, 272 and 96 accidents. In dry weather, the figures were 32, 281 and 30. Formulate null and alternative hypothesis for this test
A researcher claims that more than 60% of the registered voters favor President Trump's tax cut proposal. Specify which one of the following is the correct null and alternative hypothesis that should be use to test the researcher's claim. O Ho: P = 0.60 Ha P+0.60 O Ho: P= 0.60 H P 0.60 O Ho: P= 60 H: P> 60
The proportion of business improvement loan applications turned down in this country is equal to 15% "If the null hypothesis is Ho: p= O.15. How would the the alternative hypothesis be expressed
Last year, 41% of business owners gave a holiday gift to their employees. A survey of business owners conducted this year indicates that 32% planned to provide a holiday gift to their employees. Suppose the survey results are based on a sample of 55 business owners. 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 business owners providing holiday gifts had decreased from last year. State the hypotheses.

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