A television executive believes that at least 99% of households in the US have at least one television. An intern at the executive's company is given the task of using a hypothesis test to determine whether the percentage is actually less than 99%. The intern decides to fail to reject the null hypothesis. If, in realiry, 96.7% of house holds own a television set, was an error made? if so, what type.

Q: On occasion, the null hypothesis may be written with either . C True False

A: Testing of Hypothesis: Testing of hypothesis is a rule which, when the sample values have been…

Q: In a Chi-square analysis, what condition causes one to reject (fail to accept) the null hypothesis?

A: Causes to reject Null hypothesis in Chi-square

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A: A study is done to look at the proportion of male and female of statistics majors in a particular…

Q: In a paired t-test, failing to reject the null hypothesis proves that the paired means are equal. O…

A: In paired t test, Null Hypothesis: H0: The paired means are equal. Alternative Hypothesis: H1: The…

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A: The proportion of high school seniors who felt that "getting rich" was an important personal goal…

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Q: A decade-old study found that the proportion of high school seniors who felt that "getting rich" was…

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Q: A certain university claims that for the last school year the proportion of students who were not…

A: Given: Claim: The proportion of students who were not able to earn a college diploma is at most 25%…

Q: Researcher A uses a sample of n = 100 for their hypothesis test while Researcher B uses a sample of…

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Q: If you conduct a hypothesis test every so often at a 95% level, about what fraction of the time do…

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Q: A company selling home furnaces claims that installingtheir new high efficiency furnace will “cut…

A: Here,the company claims that their new furnace has the ability to cut the heating bill in half.Let b…

Q: A researcher did a one-tailed one-sample t-test to test the hypothesis that babies prefer the color…

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Q: Suppose a group of 1000 smokers (who all wanted to give up smoking) were randomly assigned to…

A: We have given that  Sample sizes n1= 193 , n2 = 807 ,  Favorable cases x1=12 , x2= 242 Level of…

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

A: From the given information the p-value is 0.026. Assume the level of significance as 0.05. the claim…

Q: A group of doctors is deciding whether or not to perform an operation. Suppose the null hypothesis,…

A: Type 1 error It can be stated as the surgery will go well, but the doctors think that the surgery…

Q: In a one-tail hypothesis test where you reject H0 only in the upper tail, what is the p-value if…

A: Concept of p-value: The p-value in hypothesis testing is the probability of obtaining a test…

Q: e reject the null hypothesis and conclude that there is sufficient evidence at a 0.10 level of…

A: Given data number of success , x= 20.0 sample size, n = 540 population…

Q: If a CEO claims that .35 of the organization's employees hold an advanced degree, .60 hold a 4-year…

A: here use test of comparing Proportion

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A: Given that the left tailed hypothesis was conducted on r, the correlation coefficient which decides…

Q: H0:p=0.41 Ha:p≠0.41 Calculate the test statistic, rounde

A: Let x be the random variable such that the number of people who said they would watch one of the…

Q: When testing the hypothesized equality of two population means, the implied null hypothesis is…

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Q: In a recent sample of 250 households, 45% of them owned a video game console. A hypothesis test was…

A: Type II error (β):   The probability of fail to reject the null hypothesis when alternative…

Q: A decade-old study found that the proportion of high school seniors who felt that "getting rich" was…

A: Given that  p=72%=0.72 Null hypothesis=H0  , Alternate hypothesis=H1

Q: Which of the following is the correct way of stating the null hypothesis of the given problem?

A: Test is that whether there is a relationship between the post-test scores of students in Algebra and…

Q: test the null hypothesis p=0.90 against the alternative hypothesis p<0.90 at 0.50 level of…

A: It is given that Sample size n = 200 Number of spots that were removed, X = 174 Level of…

Q: 1. Determine whether each of the following is a null or an alternative hypothesis: -Drinking coffee…

A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…

Q: Claim: A majority of adults would erase all of their personal information online if they could. A…

A: Let p be the population proportion  Given  p=58%=0.58

Q: A decade-old study found that the proportion of high school seniors who felt that "getting rich" was…

A: From the provided information, The proportion of high school seniors who felt that “getting rich”…

Q: According to the Centers of Disease Control, about 22% of American young people between the ages of…

A: Givenabout 22% of the american young people between the ages of 12 and19 are obeseclaim is that the…

Q: If you use a 0.05 level of significance in a two-tail hypothesis test, what decision will you make…

A: Alpha = 0.05 Two tailed test Zstat = 1.2

Q: The Null hypothesis, denoted by H0,represents the hypothesis that will be accepted only if the data…

A: GivenThe Null hypothesis, denoted by H0,represents the hypothesis that will be accepted only if the…

Q: If you use a 0.05 level of significance in a​ two-tail hypothesis​ test, what decision will you make…

A: Given  ZSTAT=-1.52, ɑ=0.05 Two tailed hypothesis

Q: Alpha (α) is defined as the chance you are willing to take in mistakenly rejecting a true null…

A: Alpha (α) is defined as the chance you are willing to take in mistakenly rejecting a true null…

Q: A commentator believes less than 35% of all adults believe they are ineffective

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Q: A teacher is comparing the mena study time of his freshmen and senior students. He believes that his…

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Q: If you use a 0.05 level of significance in a two tail hypothesis test, what decision will you make…

A: According to the provided information, level of significance  (α) = 0.05 z = 2.21 The z-critical…

Q: A hospital director is told that 33% of the emergency room visitors are uninsured. The director…

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

A: Decision rule:If the p-value is less than or equal to level of significance, then reject the null…

Q: The alternative hypothesis, denoted by H1, represents the opposite of the null hypothesis and is…

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Q: The alternative hypothesis, denoted by H1, represents the opposite of the null hypothesis and is…

A: Introduction: Denote the null hypothesis as H0, and the alternative hypothesis as H1.

Q: If you use a 0.03 level of significance in a​ (two-tail) hypothesis​ test, what is your decision…

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Q: The mayor of a town has proposed a plan for the construction of a new bridge. A political study took…

A: Given information- Population proportion, p = 0.50 Sample size, n = 1400 Significance level, α =…

Q: Traditionally in hypothesis testing, the null hypothesis represents the "status quo" which will be…

A: Traditionally in hypothesis testing, the null hypothesis represents the "status quo" which will be…

Q: Suppose a group of 800 smokers (who all wanted to give up smoking) were randomly assigned to receive…

A: Given: n1=594x1=272n2=206x2=92n=800 The value of p^1 is obtained below; p^1=x1n1=272594=0.4579 The…

Q: In a two-tailed test of hypothesis, the sign in the alternative hypothesis is: not equal to b.…

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Q: The alternative hypothesis, denoted by Hl, represents the opposite of the null hypothesis and is…

A: Given that  Alternative hypothesis is denoted by H1.

Q: In a one-tail hypothesis test where you rejected Ho only in the upper tail, what is the value is…

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Q: The National Institute of Mental Health published an article stating that in any one-year period,…

A: Given A)  x=7 n=100 B) x¯=124.32 s=37.74 n=52

Q: The mother of a teenager has heard a claim that 24% of teenagers who drive and use a cell phone…

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Q: A hospital claims that the proportion of full-term babies born in the hospital who weigh less than…

A: null hypothesis H0: p=0.42 i. e. proportion of full-term babies, born in the hospital who weigh less…