Basic Math question and answers for September 09, 2023
- Q #2. The operations manager of a musical instrument distributorfeels that demand for a particular type of guitar may be related tothe number of YouTube views for a popular music video...
- Q You have 100 coins, and 99 of them are fair (equal probabilityof heads or tails). One of them is weighted and has a 90%probability of landing on heads. You randomly...
- Q Choose an organization (Amazon, Sony, etc.) and discuss how theymanage large data sets including protocol for transferring data.Select one public data set and examine the technical format and howthe data...
- Q Suppose a consumer advocacy group would like to conduct a surveyto find the proportion of consumers who bought the newestgeneration of an MP3 player were happy with their purchase. Theirsurvey...
- Q The survival rate of a cancer using an existing medication isknown to be 30%. A pharmaceutical company claims that the survivalrate of a new drug is higher. The new drug...
- Q The housing market has recovered slowly from the economic crisisof 2008.? Recently, in one large? community, realtors randomlysampled 32 bids from potential buyers to estimate the average lossin home value....
- Q Education. Post-secondary educationalinstitutions in the United States (trade schools, colleges,universities, etc.) traditionally offer four different types ofdegrees or certificates. The U.S. Department of Education recordedthe highest degree granted by each...
- Q A sample of blood pressure measurements is taken from a data setand those values? (mm Hg) are listed below. The values are matchedso that subjects each have systolic and diastolic...
- Q In this problem, assume that the distribution of differences isapproximately normal. Note: For degrees of freedom d.f. not in theStudent's t table, use the closest d.f. that is smaller. In...
- Q In 2003 and 2017 a poll asked Democratic voters about theirviews on the FBI. In? 2003, 42?% thought the FBI did a good orexcellent job. In? 2017, 64?% of Democratic...
- Q A large sportssupplier has many stores located world wide. A regression model isto be constructed to predict the annual revenue of a particularstore based upon the population of the city...
- Q Given an approximately normal distribution with a mean of 175and a standard deviation of 37.(a) What percent of values outside the interval (138, 212)?(b) What percent of values are outside...
- Q In the casino version of the traditional Australian game oftwo-up, a spinner stands in a ring and tosses two coins into theair. The coins may land showing two heads, two...
- Q You wish to determine the GPA of students at your school.Describe what process you would go thru to collect a sample if youuse a stratified sample.
- Q Suppose a "psychic" is being tested to determine if she isreally psychic. A person in another room concentrates on one offive colored cards, and the psychic is asked to identify...
- Q There are three hospitals in the Tulsa, Oklahoma, area. Thefollowing data show the number of outpatient surgeries performed onMonday, Tuesday, Wednesday, Thursday, and Friday at each hospitallast week. At the...
- Q A chemist measures the haptoglobin concentration (in grams perlitre) in the blood serum from a random sample of 11 healthyadults. The concentrations are assumed to be normally distributedand are given...
- Q “Countries that have single member district elections will havefewer political parties thancountries that have proportional representation elections.”a. In this hypothesis, state the independent variable, and giveexamples of two valuesthat it...
- Q In this problem, assume that the distribution of differences isapproximately normal. Note: For degrees of freedom d.f. not in theStudent's t table, use the closest d.f. that is smaller. In...
- Q What is considered an outbreak? How to investigate a diseaseoutbreak? Your paper should be 3-4 pages in length
- Q You wish to test the following claim (Ha) at a significancelevel of ?=0.001. Ho:?=57.4 Ha:?>57.4You believe the population is normally distributed and you know thestandard deviation is ?=6.6. You obtain a sample...
- Q I have Standard Deviation and Mean of 2 sets of data.Based on the data, how can we infer at the 5% significance levelthat the score of individuals in the 4th...
- Q Suppose the heights of 18-year-old men are approximatelynormally distributed, with mean 72 inches and standarddeviation 4 inches.(a) What is the probability that an 18-year-old man selected atrandom is between 71...
- Q The accompanying data on x = current density(mA/cm2) and y = rate of deposition (µm/min)appeared in an article. Do you agree with the claim by thearticle's author that "a linear...
- Q true or false: control charts are a useful tool fortallying the number of defects.
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