Claim: A minority of adults would erase all of their personal information online if they could. A software firm survey of 607 randomly selected adults showed that 43% of them would erase all of their personalinformation online if they could. Complete parts (a) and (b) below.a. Express the original claim in symbolic form. Let the parameter represent the adults that would erase their personal information.teger or a decimal. Do not round.)he null and alternative hypotheses.(iype integers or decimals. Do not round.)Enter your answer in each of the answer boxes.tvMacBook AirF10F11F9F8000D00 F4F7F5escF2F3&*$89 Claim: A minority of adults would erase all of their personal information online if they could. A software firm survey of 607 randomly selected adults showed that 43% of them would erase all of their personalinformation online if they could. Complete parts (a) and (b) below.a. Express the original claim in symbolic form. Let the parameter represent the adults that would erase their personal information.(Type an integer or a decimal. Do not round.)b. Identify the null and alternative hypotheses.Ho:H:(Type intemals. Do not round.)Enter your answer in each of the answer boxes.étvMacBook AirF9F10F11D00F8000 F4F7F5F6escF3F1F2*@$%&5678.924T%#3

The random variable X follows binomial distribution. X ~ B (n, p) We have to use normal distribution…

Claim: A minority of adults would erase all of their personal information online if they could. A software firm survey of 607 randomly selected adults showed that 43% of them would erase all of their personal information online if they could. Complete parts (a) and (b) below. a. Express the original claim in symbolic form. Let the parameter represent the adults that would erase their personal information. teger or a decimal. Do not round.) he null and alternative hypotheses. (ıype integers or decimals. Do not round.)

Claim: A minority of adults would erase all of their personal information online if they could. A software firm survey of 607 randomly selected adults showed that 43% of them would erase all of their personal information online if they could. Complete parts (a) and (b) below. a. Express the original claim in symbolic form. Let the parameter represent the adults that would erase their personal information. teger or a decimal. Do not round.) he null and alternative hypotheses. (ıype integers or decimals. Do not round.)

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 humane society claims that less than 72% of households in a certain country own a pet. In a random sample of 400 households in that country, 272 say they own a pet. At a = 0.10, is there enough evidence to support the society's claim? Complete parts (a) through (c) below. (Type an integer or a decimal. Do not round.) A. Less than 72% of households in the country own a pet. % of households in the country own a pet. C. More than % of households in the country own a pet. D. The percentage households in the country that own a pet is not %. O B. Let p be the population proportion of successes, where a success is a household in the country that owns a pet. State Ho and H₂. Select the correct choice below and fill in the answer boxes to complete your choice. a (Round to two decimal places as needed.) A. Ho:pz Ha: p Ho: P# 0.72 Ha: p= 0.72 OC. Ho: P Ha:ps
In a scatterplot, the more dispersion there is in the points, the _____ the association. a. stronger b. weaker
We are interested in looking at the effect of a baseball player’s free agent status on their salary. We look at 337 baseball players and categorize them as either having a high salary (above 2 million) or not, and as either being free agents or not. ------------------------------------- You also wonder if having a high batting average affects the salary of baseball players. You classify all 370 baseball players as having a high batting average if it is over .300. 1. What are the variables you are looking at? What are the possible categories within each variable? Which is the explanatory, and which is the response? 2. If we want to perform a χ2 test to see if there is a relationship between the two variables, what is our null and alternative hypothesis?
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Suppose that BC financial aid alots a textbook stipend by claiming that the average textbook at BC bookstore costs $ 52.86. You want to test this claim. The null and alternative hypothesis in symbols would be: O Ho:p 52.86 o Ho:p 52.86 O Ho:p 2 52.86 H:p 52.86 H:p < 52.86 o Ho: u 52.86 H:p+52.86 The null hypothesis in words would be: The average price of textbooks in a sample is 5 52.86 O The average of price of all textbooks from the store is less than $ 52.86. O The average price of all textbooks from the store is $ 52.86 The average of price of all textbooks from the store is greater than $ 52.86, The proportion of all textbooks from the store that are less than 52.86 is equal to 50% of Based on a sample of 80 textbooks at the store, you find an average of 64.66 and a standard deviation of 17. The point estimate is: (to 3 decimals) The 90 % confidence interval (use z*) is: to (to 3 decimals) of
3. A poll done for Newsweek found that 10% of Americans have seen or sensed the presence of an angel. A contingent doubt that the percent is really that high. It conducts its own survey. Out of 85 Americans surveyed, only 5 had seen or sensed the presence of an angel. As a result of the contingent's survey, would you agree with the Newsweek poll? In complete sentences, also give three reasons why the two polls might give different results.
Which is the correct answer
9. There are about 8 million people in the City of New York. A survey organization took a simple random sample of 2,500 persons and found that the average household income in the sample was $59,210 and the SD was $26,120. The organization estimates the average income in the entire city to be around $59,210, they put s give-or-take number of $522.40 on this estimate. Say whether each of the following statements is true or false, and explain. (a) An approximate 99.7%-confidence interval for the average household income in the city runs from $57.642.80 to $60,777.20 (b) If a statistician takes a simple random sample of 2,500 persons out of the 8 million people in the city, and goes 3 SEs either way from the average household income of the the 2,500 people in the sample, there is about a 99.7% chance that his interval will cover the average household income in the city. (c) About 99.7% of the people in the sample had incomes in the range $59, 210+ $78,360. (d) It is estimated that 99.7% of…
1a. A recent study (Ackerman, Griskevicius, and Li, 2011) examined expressions of commitment between two partners in a committed romantic relationship. One aspect of the study involved 40 heterosexual couples who were asked about which person was the first to say "I love you." ...the 40 responses were used to see whether the male was more likely to say "I love you" first. 1.c] Write a paragraph, as if to the skeptics and the researchers, describing what your simulation analysis reveals about whether the data provide strong evidence in support of the researchers' conjecture. If you side with the researchers - explain why ... If you side with the skeptics - explain what it would take to be convincing evidence ...
In a certain university the probability of randomly selecting a student that studies mathematics is 0.6 while the probability of randomly selecting a student studying literature is 0.45. Which of the following statements CAN NEVER BE TRUE? I. The probability of selecting a student studying mathematics given that he studies literature is 0. II. The probability of selecting a student that studies both science and mathematics is 0.27. O Both Statements I and Il. O StatementI only. O Neither Statement I not I. O Statement II only.
If P and Q are sets and n(T) = 6 and n(W) = 3, then n(P u Q) = 9. %3D True False
B7