A decade-old study found that the proportion, p, of high school seniors who believed that "getting rich" was an important personal goal was 70%. A researcher decides to test whether or not that percentage still stands. He finds that, among the 205 high school seniors in his random sample, 159 believe that "getting rich" is an important goal. Can he conclude, at the 0.05 level of significance, that the proportion has indeed changed? Perform a two-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places.      Find the value of the test statistic and round to 3 or more decimal places. (I have posted a picture of an example problem and the equation to use, with the correct answer as every expert I have asked thus far has gotten this problem wrong.) A. Find the value of the test statistic. (Round to three or more decimal places.) B. Find the p-value. (Round to three or more decimal places.) C. Can we conclude that the proportion of high school seniors who believe that "getting rich" is an important goal has changed?

Q: A decade-old study found that the proportion, p, of high school seniors who believed that "getting…

A: given data clim : p ≠0.80n = 205x = 157α = 0.05p^ = xn = 157205 = 0.7659

Q: A 2016 Pew Research poll found that 18% of cell phone owners use their phone for conducting…

A: It is given that the total number of cell phone uses are 18%, thus the population proportion is…

Q: A decade-old study found that the proportion,  p , of high school seniors who believed that "getting…

A: We have to test the claim at  that the population proportion of the high school seniors who believed…

Q: A decade-old study found that the proportion, p, of high school seniors who believed that "getting…

A:

Q: A decade-old study found that the proportion, p, of high school seniors who believed that "getting…

A: Note: According to Bartleby guidelines, expert solve only one question and maximum 3 subpart of the…

Q: A decade-old study found that the proportion, p, of high school seniors who believed that "getting…

A:

Q: A decade-old study found that the proportion, p, of high school seniors who believed that "getting…

A: Note, Since you have posted a question with multiple sub-parts, we will solve first three sub-parts…

Q: (a) State the null hypothesis Ho and the alternative hypothesis H₁. Ho :O 0 H₁ :0 (b) Determine the…

A: It is given that  Population proportion, p = 0.75 Sample size, n = 205 Favourable cases, X = 137…

Q: Researchers in a statistics course at a Texas college wanted to investigate the optimism in…

A: Given that, The objective of the research study was to investigate the optimism in receiving a job…

Q: A decade-old study found that the proportion, p , of high school seniors who believed that "getting…

A: Givenx=198n=230p^=xn=198230≅0.8609significance level(α)=0.05

Q: A decade-old study found that the proportion, p, of high school seniors who believed that "getting…

A: It is given that among the 245 high school seniors in his random sample 191 believe that "getting…

Q: Given the information provided, if the trial were to be repeated with the aim of halving the width…

A: Let us construct the confidence interval for the difference in swim time between placebo and coffee:…

Q: A decade-old study found that the proportion, p , of high school seniors who believed that "getting…

A: Solution: Let X be number of people believe that “getting rich” is an important goal and n be the…

Q: A decade-old study found that the proportion, p, of high school seniors who believed that "getting…

A: Given: p=70%=0.7n=245x=178α=0.01

Q: decides to test whether or not that percentage still stands. He finds that, among the 235 high…

A: We have given that,  Sample size (n) = 235, favorable cases (X) = 193, population proportion (p)=…

Q: A decade-old study found that the proportion, p, of high school seniors who believed that "getting…

A: Given that  Sample size n =245 Favorable cases x =160   NOTE:- According to bartleby guidelines…

Q: A decade-old study found that the proportion, p, of high school seniors who believed that "getting…

A: Given x=175 n=210

Q: A decade-old study found that the proportion, p, of high school seniors who believed that "getting…

A:

Q: After reading an article using research done by the Organization for Economic Co-operation and…

A: The 95% confidence interval for p is (0.25, 0.32).

Q: A research study was conducted about gender differences in "sexting." The researcher believed that…

A: Solution:- from given information claim: The proportion of girls sending sexts is less than the…

Q: A decade-old study found that the proportion, p, of high school seniors who believed that "getting…

A: We have given that p = 70% = 0.70 n = 245x = 151p̂ = x/n = 151/245 = 0.6163 α = 0.01

Q: A decade-old study found that the proportion, p, of high school seniors who believed that "getting…

A: Answer:- Given, Population proportion, p = 80% = 0.80  Sample size, n = 245 Number of successes in…

Q: A decade-old study found that the proportion, p, of high school seniors who believed that "getting…

A: The sample proportion is, The null hypothesis is, The alternative hypothesis is, Significance…

Q: A decade-old study found that the proportion, p, of high school seniors who believed that "getting…

A: as per policy i have calculated 3 subparts  n =  215  X = 179  sample proportion  =  X /n = 179/ 215…

Q: ecade-old study found that the proportion, p , of high school seniors who believed that "getting…

A: The following null and alternative hypotheses need to be tested: Ho: p = 0.80Ho:p=0.80 Ha: p =\not…

Q: A decade-old study found that the proportion, p, of high school seniors who believed that "getting…

A: We have given that  p = 75% = 0.75 n = 215x = 179p̂ = x/n = 179/215 = 0.8326Significance level (α) =…

Q: A decade-old study found that the proportion, p, of high school seniors who believed that "getting…

A:

Q: A decade-old study found that the proportion, p, of high school seniors who believed that "getting…

A: Given that  p = 75% = 0.75 , n = 235 , X = 179 Note : According to bartleby experts question answers…

Q: A decade-old study found that the proportion, p, of high school seniors who believed that "getting…

A: From the provided information, Sample size (n) = 235 From which 204 believe that getting rich is an…

Q: A decade-old study found that the proportion, p, of high school seniors who believed that "getting…

A: Givenx=193n=230p^=xn=193230=0.839p=0.80α=0.05

Q: A decade-old study found that the proportion, p, of high school seniors who believed that "getting…

A: Givenp=0.80n=210x=152p^=xn=152210=0.724α=0.05

Q: A decade-old study found that the proportion, p, of high school seniors who believed that "getting…

A:

Q: A decade old study found that the proportion, p of hi school seniors who believed that "getting…

A: We have given information. p=0.70 n=250 x=191 The level of significance α=0.10.

Q: A decade-old study found that the proportion, p, of high school seniors who believed that "getting…

A: The question is about hypothesis testing.Given :Proportion of high school seniors who believed the…

Q: A decade-old study found that the proportion, p, of high school seniors who believed that "getting…

A: The question is about hypothesis testingGiven :Population proportion of high school seniors who…

Q: A decade old study found that the proportion, p, of high school seniors who believed that "getting…

A: From the provided information, Sample size (n) = 220 Out of which 192 believe that getting rich is…