A researcher claims that the proportion of cars with manual transmission is less than 10%. To test this claim, a survey checked 1000 randomly selected cars.  Of those cars, 95 had a manual transmission. The following is the setup for the hypothesis test: H0:p=0.10 Ha:p<0.10   In this example, the p-value was determined to be 0.299. Come to a conclusion and interpret the results for this hypothesis test for a proportion (use a significance level of 5%)

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Q: Under what circumstances is the t statistic used instead of the Z score for a hypothesis test?

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Q: To be considered 18-karat (18K) gold, a piece of jewelry must be made of 75% pure gold. The higher…

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Q: Back in April and May of 1985, the Gallup organization conducted a poll to estimate the   percentage…

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Q: Assuming that all the assumptions of statistical hypothesis testing are met, based on the z-score of…

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Q: The proportion of mango trees on an island that produce only dwarf fruit is p1. The proportion of…

A: The proportion of mango trees on an island that produce only dwarf fruit is p1.  The proportion of…

Q: Test the claim that the proportion of men who own cats is larger than 20% at the .005 significance…

A: Denote p as the true proportion of men who own cats.

Q: "A student believes they have stumbled upon a new unique way to study, and believes it will boost…

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Q: In a recent survey, it was stated that Americans watch television on average four hours per day.…

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Q: Over the past few decades, public health officials have examined the link between weight concerns…

A: From the provided information, Sample size (n) = 273 From which 63 said they smoked to stay thin.

Q: In a hypothesis test with hypotheses H0 : P greater than equal 0.76 and H1 : P less than 0.76 , a…

A: Denote p as the true population proportion. The null and alternative hypotheses are: Null…

Q: 19% of all college students volunteer their time. Is the percentage of college students who are…

A: The hypothesized proportion is 0.19.

Q: A publisher reports that 48 % of their readers own a personal computer. A marketing executive wants…

A: The publisher reports that 48% of their readers own a personal computer.

Q: A newsletter publisher believes that over 63% of their readers owns a Rolls-Royce. For marketing…

A: Given: p=63% = 0.63 α=0.10 The advertiser decides to reject the null hypothesis.

Q: Listed below are the heights (in inches) of fathers and their first sons. The data are from a…

A: We have given paired sampled data, calculation for sample mean and standard deviation is show below.…

Q: An economist claims that the proportion of people who plan to purchase a fully electric vehicle as…

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Q: A book club wonders if fewer than 40 percent of students at a local university had read at least one…

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Q: The American Library Association claims that at most 67% of library patrons actually borrow books.…

A:

Q: survey by Men's Health magazine stated that 14% of men said they used exercise to reduce stress. A…

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Q: It is believed that the percent of convicted felons who have a history of juvenile delinquency is…

A: Note: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts. In…

Q: Calculate the ?-value of the test of the following hypothesis given that the sample proportion ? =…

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Q: The level of significance for a hypothesis is 0.01. If you compute a p-value of 0.0157 what decision…

A: Level of significance = 0.01 p-value = 0.0157

Q: Suppose a 95% CI for the proportion of adults that regularly attend a tae kwon do class at least…

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Q: The p-value for a hypothesis test turns out to be 0.04836. At a 5% level of significance, what is…

A: It is given that the p-value is 0.04836.

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Q: In a recent study of a random sample of 113 people, 92 reported dreaming in color. In the 1940’s,…

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Q: contingent’s survey, would you agree with the Newsweek poll? Perform a hypothesis test, using the…

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Q: In a fishing lodge brochure, the lodge advertises that 75% of its guests catch northern plke over 20…

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Q: Test the claim that the proportion of men who own cats is significantly different than 35% at the…

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Q: Test the claim that the proportion of men who own cats is larger than 70% at the .025 significance…

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Q: The smaller the observed p-value, the more evidence you have against the null hypothesis. Select…

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Q: s the proportion of wildfires caused by humans in the south higher than the proportion of wildfires…

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Q: A polling company conducted a hypothesis test to see if people are happy with the government, and…

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Q: In testing hypotheses, which of the following provides strong evidence against the null hypothesis?…

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Q: The U.S. Department of Transportation, National Highway Traffic Safety Administration, reported that…

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Q: Select the appropriate null and alternative hypothesis for the following research question: Does a…

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2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.