Reference no: EM13112007
Assume that a hypothesis test of the given claim will be conducted. The college Dean of Admissions claims that the times students require to earn a bachelors degree have a mean less than five years. Which equality/inequality (e.g., =, =<, etc.) would use in the Null Hypothesis?
Assume that a hypothesis test of the given claim will be conducted. The college Dean of Admissions claims that the times students require to earn a bachelors degree have a mean less than five years. Which equality/inequality (e.g., =, =<, etc.) would use in the Alternative Hypothesis?
The Hudson Valley Bottling Company distributes root beer in bottles labeled 32 ounces. The Bureau of Weights and Measures randomly selects 50 of these bottles, measures their contents and obtains a sample mean of 31.80 ounces with a standard deviation of 0.75 ounces (assume population values for mean and standard deviation). Using a 0.01 significance level, test the Bureaus claim that the company is cheating consumers. Indicate whether you would use a z score or t score, give the value of that score and the critical value to 2 decimal places, and state whether you "Reject" or "Fail to Reject" the null hypothesis. Example Answer: t, 1.45, 3.12, Reject
The skid properties of a snow tire have been tested and a mean skid distance of 154 feet has been established for standardized conditions. A new, more expensive tire is developed, but tests on a sample of 17 new tires yield a mean skid distance of 148 feet with a standard deviation of 12 feet. Because of the cost involved, the new tires will be purchased only if it can be shown (at the 0.005 significance level) that they skid less than the current tires. Based on the sample, will the new tires be purchased?Indicate whether you would use a z score or t score, give the value of that score and the critical value to 2 decimal places, and state whether you "Reject" or "Fail to Reject" the null hypothesis. Example Answer: z, 1.45, 3.12, Fail to Reject
In 1990, 5.8% of job applicants who were tested for drugs failed the test. At the 0.01 level, test the claim that the failure rate is now lower if a random sample of 1,520 current job applicants results in 58 failures. Does the result suggest that fewer job applicants now use drugs? Give the z score to 2 decimal places to, p(hat) to three decimal places, and the corresponding value of p to 4 decimal places. Also, do you conclude that fewer use drugs (Yes or No)? Example Answer: -2.21, 0.046, 0.0008, No
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What proportion of the women
: ten percent (0.100) of the men in a population in Hardy-Weinberg proportions are color-blind because of an X-linked recessive allele. What proportion of the women in this population do you expect to be color-blind?
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Determine the minimum sample size to evaluate
: Determine the minimum sample size required in order for you to be confident that your evaluate is within of? Use value for population standard deviation of scores on this subsection.
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Discuss parametric and nonparametric data identification
: Jim owns three real estate offices in Anytown. He has decided to open one more office, but cannot decide between hometown or uptown as the towns where he wants to locate.
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Determine the ultimate end product
: We are asked to write the balanced equation when glucose is reacted with ammonium chloride + epichlorohydrin + isopropyl alcohol. What is the ultimate end product? Hopefully it is supposed to be some form of a quaternary ammonium radical attached to ..
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Some hypothesis testing problems
: Assume that a hypothesis test of the given claim will be conducted. The college Dean of Admissions claims that the times students require to earn a bachelors degree have a mean less than five years. Which equality/inequality (e.g., =, =
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What percent of the 3 eyed and one eyed creatures are hybrid
: Given N and E =dominant alleles green nose (homozygous D) pink nose (heterozygous) yellow nose (Homozygous R) two eyes (homozygous D) three eyes (heterozygous) one eye (homozygous R) Make two Punnett squares: 1.) Cross a green-nosed female with a ..
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Standard normal random variable
: Let Z be a standard normal random variable. Determine the value of c such that P (Z > c) = 0.1251 is there a way to do this step by step so i can understand it?
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Find expected concentration of parathion in the octanol
: Consider a lake containing 39 ppb (parts per billion) of parathion, which has a log Kow = 3.8. If a sample of lake water was mixed with octanol, what is the expected concentration of parathion in the octanol?
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Assume that the concentration of da and fraction of cells
: If a particular experiment was known to have transformation efficiency of 3x1063 bacteria/ug of DNA how many transformant colonies would be expected to grow on the LB/amp/ara plate? You can assume that the concentration of DA and fraction of cells..
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