a randon sample 765 adults in the united states ,322 say yhey could not cover a 400$ unexpected expense without borrowing money or going  into debt. a cable news pundit thiniks the value is actually 50% perform a hypothesis test a 0.10 to determine if the sample data suggest that the proportion is different from 50%  state the null and alternative hypotheses state the value of the standardized test statistic

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A:

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A: Solution: Let X be the number of subjects developed nausea and n be the number of subjects are…

Q: Suppose 234 subjects are treated with a drug that is used to treat pain and 55 of them developed…

A: Here, the claim of the test is that more than 20% of users develop nausea. This is representing in…

Q: study of pregnant women and their ability to correctly predict the sex of their​ baby, 57 of the…

A: From the given information we conduct z test for Proportion.

Q: Họ: Select an answer H1: Select an answer |? Based on the hypotheses, find the following: Test…

A: p0 = 46% Number of homes heated by Natural gas , (X)(X) = 146146 Sample Size (n)(n) = 300300…

Q: An online poll asked " do you believe the Loch Ness monster exist?" Among 22,306 responses, 68% were…

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Q: A researcher wants to test whether the average cholesterol level among those who regularly eat…

A: Introduction: Denote μ as the true average cholesterol level of those who eat frozen hot dogs…

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A: Given,n=60x=26p^=xnp^=2660=0.4333α=0.10

Q: According to the American Diabetes Association, 23.1% of Americans aged 60 years or older had…

A: given data claim : p > 0.231n = 200x = 52α = 0.05

Q: In 2015 about 60% of all college students used Twitter. In a recent study of 100 students, 80 now…

A:

Q: Historically, the percentage of U.S. residents who support stricter gun control laws has been 55%. A…

A: From the provided information, Sample size (n) = 2500 From which 1723 are in favor of stricter gun…

Q: In 2017, it was estimated that 45% of U.S. households purchased groceries at convenience stores.…

A: Obtain the sample size needed to estimate the population proportion of U.S. households purchasing…

Q: A random sample of 400 Fresno State students revealed that 228 were female. Test the claim that more…

A: According to the provided information, a random sample of Fresno State students revealed that 228…

Q: The US Department of Energy reported that 51% of homes in the USA were heated by natural gas. A…

A: Solution: Let X be number of homes were heated by natural gas and n be the sample number of homes in…

Q: Historically, the percentage of U.S. residents who support stricter gun control laws has been 55%. A…

A:

Q: A random sample of 829 births included 430 boys. Use a 0.05 significance level to test the claim…

A: given data,n=829x=430α=0.05p^= xn=430829=0.5187claim:51.4% of newborn babies are boys.

Q: car company believes that the percentage of residents in city ABC that owns a vehicle is 60% or…

A: Given information- Population proportion, p = 0.60 Sample size, n = 250 Significance level, α = 0.1…

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A: From the provided information, Sample size (n) = 54 Out of which 35 involved an intoxicated driver.…

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Q: The ?2 value for a one-tailed (upper tail) hypothesis test at 95% confidence and a sample size of 20…

A: Here, n=20. The degrees of freedom is, df=n-1    =20-1    =19

Q: Based on your decision regarding the null hypothesis, would a 99% confidence interval for the…

A: n1=n2=2500,X1¯=46.2,s1=12.3,X2¯=44.4,s2=5.5

Q: Historically, the percentage of U.S. residents who support stricter gun control laws has been 55%. A…

A: Solution: 8. Let X be number people are in favor of stricter gun control and n be the sample number…

Q: A research group claims that 20% of patients with dementia never develop full Alzheimer's. In a…

A: According to the given question, to test the hypothesis that the research group claims that 20% of…

Q: ppose 245 subjects are treated with a drug that is used to treat pain and 53 of them developed…

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Q: According to a geographic report, in the United States, 20% of all families renting condos will move…

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Q: Do the results support the belief that 51.5​% of newborn babies are​ boys?

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Q: abulated below: Males Females American Football more iolent ce hockey more iolent 434 361 466 439

A: The value of z at 99% confidence level is 2.575. (From standard normal table) Given  X =434 n=900…

Q: A USA Today survey basis for report that 57% of gun owners favor stricter gun laws. Assume the group…

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Q: A $ion of given to omly high sch seniors. The sample mean test score is 1110, and the sample…

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Q: with a drug that is used to treat pain and 50 of them developed nausea. Use a 0.01

A: Here it is given that - Total number of sample (n) = 247 Sample proportion (p) = 50247=0.202 So, q =…

Q: Sleep experts say that sleep apnea is more likely to occur in men than in the general population.…

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Q: Write appropriate hypotheses, find the p-value and explain your results.

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Q: If the sample portion is 0.448 What is the margin of error for the 95% Confidencelevel? 0.95 = 1.960…

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A: Given, E = 0.04 p = 0.67 Significance level = 0.05 (95%) z critical value = 1.96

Q: Historically, the percentage of U.S. residents who support stricter gun control laws has been 55%. A…

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

Q: Suppose a professional basketball player historically makes 39% of his three-point field goals.…

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Q: A national survey conducted in 2011 among a simple random sample of 1507 adults shows that 56% of…

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Q: a 95% confidence interval to estimate the size effect of the population mean difference

A: d¯ = 7sd = 6n = 9 Confidence Interval to estimate the difference in Related population…