Test the hypotheses at significance level a = 0.10
Q: Suppose the level of significance α was 0.10 and the p-value is 0.084 The conclusion would be to...…
A: We have givan hypothesis..
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A: Given that 47% of parents of children in high school felt it was a serious problem that high school…
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A: Given N=85 X=15
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A: From the provided information, z = -1.17 The corresponding p value of the provided z score from the…
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A: Sample size n =119 Favorable cases x =32 Sample proportion p^=x/n =32/119 =0.2689 NOTE:- According…
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Q: A researcher is testing the effect preschool has on the development of young children mothers more…
A: Consider that μ is the true rating of behavior problems in kindergarten children.
Q: A newsletter publisher believes that over 33% of their readers own a laptop. For marketing purposes,…
A: Given that Claim: Over 33% of their readers own a laptop. Decision : Reject the null hypothesis.
Q: If a null hypothesis is rejected at the 0.05 level of significance, it must be rejected at the 0.01…
A: Statement: " If a null hypothesis is rejected at the 0.05 level of significance, it must be rejected…
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A: Given p=10%=0.10 X=95, n=1000 pcap=x/n=95/1000=0.095 We want to test the hypothesis and give…
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Q: A statistical test of hypothesis produces the P-value P = 0.604. Will the null hypothesis be…
A: Given : P-value = 0.604 level of significance = 0.05 Here : P-value : 0.604 > 0.05
Q: A publisher reports that 38% of their readers own a particular make of car. A marketing executive…
A: The claimed proportion of readers woning a particular car is 38% or 0.38.The sample size, n=320.The…
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A: From the provided information, The p value for a hypothesis test = 0.05015 Level of significance (α)…
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Q: • Employees from Company A and Company B both receive annual bonuses. What information would you…
A: Null and Alternate Hypothesis: H0: μA- μB=100HA: μA- μB>100 We will need: Sample size A =nA…
Q: 55% of students entering four-year colleges receive a degree within six years. Is this percent…
A: Given,sample size (n)=256and X=161sample proportion(p^)=Xn=161256=0.6289α=0.10
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A: The advertiser is decided to reject the null hypothesis that means accept the alternative…
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A: Level of significance is the type 1 error which is rejecting the true Null Hypothesis. So here the…
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A: Hypothesized population proportion, Sample size, Number of babies having weight above 7 pounds,…
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A: Note- Since these are 2 different questions, so as per company policy I can answer first question…
Q: Previously, 11.2% of workers had a travel time to work of more than 60 minutes. An urban economist…
A: The give is, 11.2% of workers had a travel time to work for more than 60 minutes. X=11 and n=85…
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A: a) From the given information, the claim of the problem is the percentage of smokers has reduced.…
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A: Concept of p-value: The p-value in hypothesis testing is the probability of obtaining a test…
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Q: , what is the test statistic and p-value?
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Q: A change is made that should improve student satisfaction with the parking situation at your school.…
A: Given that A change is made that should improve student satisfaction with the parking situation at…
Q: If a hypothesis is rejected at significance level α = 0.01, is it possible that the hypothesis is…
A: At α = 0.01 the generally critical value of Z is 2.576 suppose if test statistic value is greater…
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- Previously, 3% of mothers smoked more than 21 cigarettes during their pregnancy. An obstetrician believes that the percentage of mothers who smoke 21 cigarettes or more is less than 3% today. She randomly selects 145 pregnant mothers and finds that 3 of them smoked 21 or more cigarettes during pregnancy. Test the researcher's statement at the a = 0.1 level of significance. What are the null and alternative hypotheses? Họ: P = 0.03 versus H4: p < 0.03 (Type integers or decimals. Do not round.) Because npo (1- Po) =|| 10, the normal model V be used to approximate the P-value. (Round to one decimal place as needed.)The p-value for a hypothesis test turns out to be 0.09484. At a 2% level of significance, what is the proper decision? Reject H0H0 Fail to reject H0Previously, 12.1% 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 80 workers and finds that 18 of them have a travel time to work that is more than 60 minutes. Test the economist's belief at the x = 0.1 level of significance. What are the null and alternative hypotheses? P = 0.121 versus H1: p Ho: p (Type integers or decimals. Do not round.) > 0.121 Because npo (1- Po) = < 10, the normal model may not be used to approximate the P-value. (Round to one decimal place as needed.)
- Women athletes at a certain university have a long-term graduation rate of 67%. Over the past several years, a random sample of 38 women athletes at the school showed that 23 eventually graduated. Does this indicate that the population proportion of women athletes who graduate from the university is now less than 67%? Use a 10% level of significance. What is the level of significance? (b) State the null and alternate hypotheses. H0: p = 0.67; H1: p > 0.67 H0: p = 0.67; H1: p ≠ 0.67 H0: p < 0.67; H1: p = 0.67 H0: p = 0.67; H1: p < 0.67 What sampling distribution will you use? The Student's t, since np < 5 and nq < 5. The standard normal, since np < 5 and nq < 5. The standard normal, since np > 5 and nq > 5. The Student's t, since np > 5 and nq > 5. What is the value of the sample test statistic? (Round your answer to two decimal places.) Find the P-value of the test statistic. (Round your answer to four decimal places.)…Mark performed a two-sample z-test for proportions to test the hypothesis that there was no difference in the proportion who support increasing student fees between male and female students at a particular university. Mark obtained a z-statistic of 0. Based on this information, which of the following is always true. The sample proportions for male and females will be the same as the hypothesized proportions for male and female students at this university. The sample proportions for both male and female students at this university will be 0. All male and female students in the sample will feel the same way about supporting the increase in student fees. The sample proportions will be the same for both male and female students at this university. Test whether p1>p2 The sample data are x1=116,n1=258,x2=135,n2=311. Conduct a test at the α=0.10 level of significance. Determine the correct null and alternative hypothesis below. Determine the test statistic. Find the P-value: What is…The p-value for a hypothesis test turns out to be 0.03621. At a 6% level of significance, what is the proper decision? O Reject Ho Fail to reject Ho
- A newsletter publisher believes that less than 68 % of their readers own a Rolls Royce. For marketing purposes, a potential advertiser wants to confirm this claim. After performing a test at the 0.05 level of significance, the advertiser failed to reject the null hypothesis. What is the conclusion regarding the publisher's claim?A survey across generations of workers gathered data on engagement at work. The results for a sample of 1,000 workers are in the accompanying contingency table. At the 0.10 level of significance, is there evidence of a significant relationship between generation and level of engagement in the workplace? E Click the icon to view the contingency table. What are the null and alternative hypotheses to test? H,: No relationship exists between generation and level of engagement. H,: A relationship exists between generation and level of engagement. Generation and level of engagement Calculate the test statistic. XŠTAT =O GENERATION LEVEL OF ENGAGEMENT Millennials Gen Xers Baby Boomers Traditionalists Total Engaged Not Engaged Actively Disengaged Total (Round to two decimal places as needed.) 104 111 97 16 328 188 165 127 18 498 59 60 50 5 174 351 336 274 39 1,000 Print DoneBig fish: A sample of 250 flounder of a certain species have sample mean weight 50.5 grams. Scientists want to perform a hypothesis test to determine how strong the evidence is that the mean weight is less than 49 grams. State the appropriate null and alternate hypotheses.
- Previously, 10.4% 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 75 workers and finds that 16 of them have a travel time to work that is more than 60 minutes. Test the economist's belief at the a = 0.1 level of significance. What are the null and alternative hypotheses? 0.104 versus H1: p Ho: p P = (Type integers or decimals. Do not round.) > 0.104 %3D Because npo (1- Po) 10, the normal model be used to approximate the P-value. %3D (Round to one decimal place as needed.)A random sample of 818 births included 435 boys. Use a 0.05 significance level to test the claim that 50.6% of newborn babies are boys. Do the results support the belief that 50.6% of newborn babies are boys? Identify the null and alternative hypotheses for this test. Choose the correct answer below. A. H0: p=0.506 H1: p>0.506 B. H0: p≠0.506 H1: p=0.506 C. H0: p=0.506 H1: p≠0.506 D. H0: p=0.506 H1: p<0.506 Identify the test statistic for this hypothesis test. The test statistic for this hypothesis test is: (Round to two decimal places as needed.) Identify the P-value for this hypothesis test. The P-value for this hypothesis test is : (Round to three decimal places as needed.) Identify the conclusion for this hypothesis test. A. Fail to reject H0. There is not sufficient evidence to warrant rejection of the claim that 50.6% of newborn babies are boys. B.Fail to reject H0. There is sufficient evidence to…In a survey, 32% of the respondents stated that they talk to their pets on the telephone. A veterinarian believed this result to be too high, so she randomly selected 230 pet owners and discovered that 66 of them spoke to their pet on the telephone. Does the veterinarian have a right to be skeptical? Use the α=0.1 level of significance. Find test statistic and p value