Would it be unusual if less than 21% of the freshmen in the sample of 140 were planning to major in a STEM discipline?It would not ▼be unusual if less than 21% of the freshmen in the sample of 140 wereplanning to major in a STEM discipline, since the probability is Future scientists: Education professionals refer to science, technology, engineering, and mathematics as the STEM disciplines. Aresearch group reported that 28% of freshmen entering college in a recent year planned to major in a STEM discipline. A randomsample of 90 freshmen is selected. Round the answer to least four decimal places.

Sample size=n=140=P=0.28=0.0379

Answered: Future scientists: Education…

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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Holiday Blues. A poll was conducted by Opinion Research Corporation to estimate the proportions of men and women who get the “holiday blues.” Identify the a. specied attribute.b. two populations.c. two population proportions.d. two sample proportions.e. According to the poll, 34% of men and 44% of women get the “holiday blues.” Are the proportions 0.34 and 0.44 sample proportions or population proportions? Explain your answer.
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Using the following information: identify the population, sample, statistic, and parameter. Political pollsters are often interested in gaining information about the proportion of Americans who will vote for a candidate before the actual election. One group of pollsters conducted a survey of 50,000 people to find out if they planned on voting for Trump in the next presidential election.
Read the scenario below. Identify the population and sample. Then determine if the bolded value is a parameter or a statistic. Use the appropriate symbol in your answer. A 1993 survey conducted by the Richmond Times-Dispatch one week before Election Day asked voters which candidate for the state's attorney general they would vote for. 37% of the respondents said they would vote for the Democratic candidate. On Election Day, 41% actually voted for the Democratic candidate. The population is The sample is This is a scenario involving The symbol goes with 37% because 37% is a The symbol v goes with 41% because 41% is a
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Information about a sample is used to make a prediction about the population. This type of statistical analysis is referred to as: Descriptive Statistics Mathematical Certainty Deductive Reasoning Inferential Statistics Sampling Statistics
The 2004 General Social Survey asked a random sample of 977 adult Americans how often they feel rushed, with three options to choose from: always, sometimes, and never. The sample result was that 304 of the 977 people responded "always." Calculate the value of the test statistic by hand. Round the sample proportion and the hypothesized value of the proportion to THREE decimal places. Round the final answer to TWO decimal places.
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Calculate the appropriate measure of association for this study. Round to the nearest hundredth. In a recent case-control study, investigators enrolled 300 adults with heart disease and 300 healthy adults. During interviews with the participants, the investigators determined participants' use of multivitamins in childhood, which was dichotomized into yes or no. The 2x2 table below shows the frequencies of heart disease case and control status by multivitamin use during childhood. Heart Disease Multivitamin Use Yes No Total Yes 125 175 300 No 135 165 300 Total 260 340 600 QUESTION 4 What is the correct interpretation of the measure of association you calculated in the previous question? (Please consider your calculated number in place of "X" in the answers.) The ODDS of heart disease among people who took multivitamins during childhood is X times the odds of heart disease among people who did not take multivitamins during childhood. The ODDS of multivitamin use during childhood among…

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