Find the P-value of z-score (3.55) if doing a two-tail hypothesis test.
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A: Given : p -value = 0.085
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A: According to the provided information, t (22) = 1.71 degrees of freedom = n-1 According to the above…
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A: The hypothesis can be constructed as:
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A: Given information d¯=18n=16Sd=SSn-1=600016-1=20
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A: From the provided information,
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A: Consider that p is the true proportion of Americans, who claimed to have seen a UFO.
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A: Given that,possible chances (x)=165sample size(n)=240success rate ( p )= x/n = 0.6875success…
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A: The critical region is also called as rejection region which is the set of test statistic values for…
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A:
Q: A research report describing the results from a repeated-measures t test states, “t(22) = 3.2, p <…
A: Assume that the level of significance is L=0.05. And it is given that "p<0.05", which means that…
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A:
Q: Say you get a test statistics of z = 2.15 and your alternative hypothesis is a two tails test. How…
A: Feel free to ask further question.
Q: A researcher did a one-tailed one-sample t-test to test the hypothesis that babies prefer the color…
A:
Q: Suppose that you want to conduct a left-tailed hypothesis test at the 5% significance level. How…
A: The level of significance is 5%. The test is a left-tailed test.
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A: We have to test that if adults with masters degree earn more than adults with bachelor's degree…
Q: reviously, 5.5% of workers had a travel time to work of more than 60 minutes. An urban economist…
A:
Q: The obtained sample mean was very likely if the null hypothesis is true, so H0 was rejected.…
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Q: A psychologist conducted a study on size of a town and the high school drop out rate. A left tailed…
A: Given that the left tailed hypothesis was conducted on r, the correlation coefficient which decides…
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A: The p-value is less than 0.001. The test statistic is -4.691.
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A: Given X1=20 X2=33 N1=345 N2=293
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A: Givenn=850P0=0.51so n*P0(1-P0) = 850*0.51*(1-0.51) = 212.4
Q: A researcher is using a one-tailed hypothesis test with α = .01 to evaluate the effect of a…
A:
Q: What is the p-value?
A: Here sample size is too large so use z test for proportion
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A: From the provided information, Sample size (n) = 85 From which 11 of them have a travel time to work…
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A: Solution:- from given information claim: The proportion of girls sending sexts is less than the…
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A: N=150 P0=0.33
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A: GivenClaim is that majority of students believe in ghosts.Number of students = n = 250Number of…
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A: It is given that Microsoft would like to advertise more than 30% of all its customers who have more…
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A: Solution: From the given information, the regression equation is
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A: Given information- Sample size, n = 16 Sample mean, MD = 4.7 points SS = 2160 Significance level, α…
Q: A research report includes the statement, “ z = 1.18, p > .05.” What happened in the hypothesis…
A:
Q: A newspaper conducted a statewide survey concerning the 1998 race for state senator. The newspaper…
A: Given Information: Sample size (n) = 1100 Out of which X = 570 registered voters would vote for the…
Find the P-value of z-score (3.55) if doing a two-tail hypothesis test.
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- The business college computing center wants to determine the proportion of business students who have personal computers at home. If the proportion differs from 30% , then the lab will modify a proposed enlargement of its facilities. Suppose a hypothesis test is conducted and the test statistic is 2.5. Find the P value for a two tailed test of hypothesis.A recent college graduate is trying to decide whether or not pursuing a Master's degree is worth it. He decides examine this question at the a 0.05 level of significance, by comparing the salaries of a random sample of adults with only a Bachelor's degree to a random sample of adults with a Master's degree to see if the adults with a Master's degree earn more money. Let uB represent the average salary of an adult with a Bachelor's degree only and uM represent the average salary of an adult with a Master's degree. Which would be correct hypotheses for this test? O Ho: HB = M, H1: HB > µM O Ho:HB µM, H1 : µB = µM O Ho: HB = HM, H1: HB < µM O Ho: HB = µM, H1: HB # UM A random sample of 68 adults with only a Bachelor's degree had an average salary of $45452, with a standard deviation of $1187. A random sample of 40 adults with a Master's degree had an average salary of $47214, with a standard deviation of $1769. Find the test statistic (2 decimal places): Give the P-value (4 decimal places…what is the to= what is the p value null rejection?
- A manufacturer claims him market share is 60%.However a random sample of 500 clients show that only 275supports his product. Test the manufacturer’s statement at 1%significance level.In a recent study of a random sample of 113 people, 92 reported dreaming in color. In the 1940’s, the proportion of people who reported dreaming in color was 29%. Is there evidence to show that the proportion of people who dream in color is different than the proportion in the 1940’s? What is the p-value for this hypothesis test? In a recent study of a random sample of 113 people, 92 reported dreaming in color. In the 1940’s, the proportion of people who reported dreaming in color was 29%. Is there evidence to show that the proportion of people who dream in color is different than the proportion in the 1940’s? What is the p-value for this hypothesis test? 0.4071 1.21 X 10-34 6.04 x 10-35 12.279 0.8142Online dating sites and mobile dating apps have become more popular over the years for American adults,according to the Pew Research Center. In 2013, 11% of adults in the US reported using online sites and mobileapps for dating. In a follow-up Pew Research poll in 2016, that percent jumped up to 15% of American adults.From the 2016 data, a hypothesis test was performed using a significance level of 0.01 and the results are shownin the output below. Based on this, can we conclude that the percentage of American adults who use online sitesor mobile apps for dating has increased since 2013? If not, what conclusion would be appropriate based on thesample data?
- Previously, 8.3% of workers had a travel time to work of more than 60 minutes. An urban economist believes that the percentage has increased since then. She randomly selects 50 workers and finds that 10 of them have a travel time to work that is more than 60 minutes. Test the economist's belief at the α=0.05 level of significance. Find the P-value.1-> An increased number of colleges have been using online resources to research applicants. According to a study from last year, 32% of admissions officers indicated that they visited an applying student's social networking page. A random sample of 400 admissions officers was recently selected and it was found that 133 of them visit the social networking sites of students applying to their college. Using a = 0.01, complete parts a and b below. a. Does this sample provide support for the hypothesis that the proportion of admissions officers who visit an applying students' social networking page has increased in the past year? Determine the null and alternative hypotheses. Choose the correct answer below. OA. Ho:p>0.32 H₁: p≤0.32 OC. Ho: p=0.32 H₁: p=0.32 Determine the critical value(s) of the test statistic. Zα= (Use a comma to separate answers as needed. Round to two decimal places as needed.) Calculate the test statistic. Zp= (Round to two decimal places as needed.) Determine the…A polling agency is interested in testing whether the proportion of women who support a female candidate for office is greater than the proportion of men. The null hypothesis is that there is no difference in the proportion of men and women who support the female candidate. The alternative hypothesis is that the proportion of women who support the female candidate is greater than the proportion of men. The test results in a p-value of 0.112. Which of the following is the best interpretation of the p-value? A. The p-value is the probability that women will support the female candidate. B. The p-value is the probability that men will support the female candidate. C. The p-value is the probability of getting a result that is as extreme as or more extreme than the one obtained, assuming that the proportion of women who support the female candidate is greater than the proportion of men. D. The p-value is the probability of getting a result that is as…
- A decade old study found that the proportion, p of hi 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 250 high school seniors and his random sample, 191 believe that "getting rich" is an important goal. Can he conclude, at the 0.10 level of significance, that the proportion has indeed changed?Perform a two tailed test. Then complete the parts below. Carry your intermediate computation to three or more decimals.You are a research assistant at a zoo. The question of your study is "Has the proportion of baby zebras born in zoos has changed from 10%?". Your supervisor asks that you run a hypothesis test using a significance level of 0.05. From the study, you obtain a z-score of 0.788. What type of z test is appropriate? What is the ? Right, one-tailed test. = +1.645 Right, one-tailed test. = -1.645 Left, one-tailed test. = +1.645 Left, one-tailed test. = -1.645 Two-tailed test. = +1.645 and -1.645Last year 46% of business owners gave a holiday gift to their employees. A survey of business owners conducted this year indicated that 35% plan to provide a holiday gift to their employees. Suppose the survey results are based on a sample of 60 business owners. For hypothesis: H0: p >= .46 ; Ha:p < .46 , compute the P-value that could be used to determine whether the proportion of business owners providing holiday gifts has decreased from last year.
