Q4. Formulate the mull and the alternative hypothesis and show which one of those statementis the claim.(a) It's claimed that the time needed to prepare German chocolate cake of diameter 25 cm is110 mins.(b) Survey showed that more than 69% of oil companies employees are concern about theirhealth.(c) A poll showed that less than 65% of college students are satisfied with their learning process.

The question is based on constructing null and alt. hypo for given statements

Answered: Q4. Formulate the null and the…

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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A fast-food franchise is considering building a restaurant at a busy intersection. A financial advisor determines that the site is acceptable only if, on average, more than 300 automobiles pass the location per hour. If the advisor tests the hypotheses H0: μ ≤ 300 versus HA: μ > 300, μ stands for __________.
Further to the information provided in the question above, we are informed that nails produced thatare shorter than the minimum acceptable length have to be scrapped. Consider that 4.8cm is still theminimum threshold for acceptable nail length. If the cost to produce one nail is 45 cents, how muchdoes the company incur in Rand losses due to scrapping?
State the null and alternative hypotheses to be used in testing the following claims also explain type of test.(a) At most, 20% of next year’s wheat crop will be exported to the Soviet Union.(b) On the average, American homemakers drink 3 cups of coffee per day.(c) The proportion of college graduates in Virginia this year who majored in the social sciences is at least 0.15.(d) The average donation to the American Lung Association is no more than $10.(e) Residents in suburban Richmond commute, on the average, 15 kilometers to their place of employment
I only need parts D,E, and F answered. Here is the entire question. “The average life of fluorescent light bulbs is at least 1600 hours.”a) State the null and alternative hypotheses: b) Explain what the Type 1 error would be for this test. c) What is the Decision Rule for this test? d) A sample of 50 bulbs is tested and the average life was 1590 hours. If σ was known to be 50 hours, what would the p-value be? (Use the method from the first primer - not the calculator function) e) Interpret what the p-value means in the context of this problem. f) Pick an α and state your conclusion.
At one school, the average amount of time that tenth-graders spend watching television each week is 15.5 hours. The principal introduces a campaign to encourage the students to watch less television. One year later, the principal wants to perform a hypothesis test to determine whether the average amount of time spent watching television per week has changed
The USDA limit for salmonella contamination for chicken is 20%. A meat inspector reportsthat the chicken produced by a company exceeds the USDA limit. You perform a hypothesis testto determine whether the meat inspector’s claim is true.When will a type I error occur? Explain using the above context
A researcher wants to explore the differences in health effects from two different types of sugar. She hypothesizes that artificial sweetener has lower long term health benefits than natural sugar. What is her null hypothesis? Fill in the blank. H0: μArtificalSweetener__________ μNaturalSugar Group of answer choices a) Less than b) Less than or equal to c) Greater than d) Greater than or equal to
Write the null and alternative hypotheses you would use to test the following situations. In the 1950s, only 40% of high school graduates went to college. Has the percentage changed? 20% of cars of a certain model have needed costly transmission work after being driven between 50,000 and 100,000 miles. The manufacturer hopes that redesign of a transmission component has reduced the failure rate. We field test a new flavor soft drink, planning to market it only if we are sure that more than 60% of people like the flavor.
5. Formulate the indicated conclusion in nontechnical terms. Be sure to address the original claim. Carter Motor Company claims that its new sedan, the Libra, will average better than 19 miles per gallon in the city. Assuming that a hypothesis test of the claim has been conducted and that the conclusion was to reject the null hypothesis, state the conclusion in nontechnical terms.
Located below is a list of examples of hypotheses. You must critique each hypothesis and assess if it is testable and written properly. Otherwise, revise the statement and make it a good one. 1. If the salary of employees will increase, then employees will be happier.2. The students got higher scores in the exam because the class size is small.3. A farmer observed that during seasons of drought and soil becomes more saline, his tomato plants were more susceptible to fungal infection. The combination of salinity and drought and the infestation of fungi led to significant reductions in fruit yield and size. The farmer proposes a general hypothesis, “Salinity and drought affect the severity of fungal infection in tomato plants.”
The shop floor manager in a dairy company believes that the milk packaging process unit for 1 liter packs is not working fine and needs calibration. If the Null Hypothesis is framed to be µ = 1 liter, what would be the alternate hypothesis?
The average American consumes 9.8 liters of alcohol per year. Does the average college student consume less alcohol per year? State your null and alternative hypothesis H0:H0: Ha:Ha:

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