The mayor of a town saw an article that claimed the national unemployment rate is 8%. They wondered if this held true in their town, so they took a sample of 200 residents to test Ho p = 0.08 vS Ha p ‡ 0.08 where p is the proportion of residents in

Q: what would the mean and standard deviation of the sample proportion ˆp be?

A: Let X be Pennsylvanians who have a high school diploma Given, n = 225 p = 0.83

Q: An article in the Washington Post on March 16, 1993 stated that nearly 45 percent of all Americans…

A: The question is about hypo. testing Given : Randomly selected no. of students ( n ) = 82 No. of…

Q: writing an appropriate null and alternative hypothesis

A: here use basic of hypothesis testing

Q: Data for (3) A random sample of 100 statisticians were asked, "To what extent do you feel the…

A: Solution To draw the distribution pie chart is appropriate because the sample size is large and the…

Q: In a survey, 36% of the respondents stated that they talk to their pets on the telephone. A…

A:

Q: uppose we are testing Ho: p=.20 vs Ha: p does not equal .20 and TS=2.34. What is the p-value?

A: given data  Ho : p = 0.20 Ha:p≠0.20 test statistic Z = 2.34 p value = ?

Q: n order to see if most people prefer in-person classes to online classes, you asked 50 randomly…

A: The sample proportion is given by p = 32/50 p = 0.64

Q: Last year, television station WXYZ's share of the 11 P.M. news audience was approximately equal to,…

A: Introduction :-  Given :-  Surveyed a random sample of 400 11PM news viewers and found that 146…

Q: Two possible p-values are given for a test. Which one provides the strongest evidence against H O…

A: Two possible are given for the testp value=0.200p value=0.07The Smaller p-value indicates the…

Q: ecause the course seems too intimidating. The university administra nforms professors that the drop…

A: Let X be the number of persons possessing the given attribute in a sample of size 'n'. Let p denote…

Q: A researcher would like to evaluate whether a pain-relief patch designed for lower back pain is…

A: Paired t-test :  A t-test for two paired samples is a hypothesis test that attempts to make a claim…

Q: Only about 17% of all people can wiggle their ears. Is this percent higher for millionaires? Of the…

A:

Q: The proportion of Americans who have frequent migraines is 15.2% according to the CDC. An…

A: From the provided information, Sample size (n) = 133 From which 16 report experiencing migraines…

Q: An analysis was conducted to determine whether the average height of the 25 girls in the same class…

A: To test whether the average height of 25 girls is different from the general population of 15-year…

Q: The owner of a local nightclub has recently surveyed a random sample of n = 250 customers of the…

A: From the provided information, Sample size (n) = 250 She would now like to determine whether or not…

Q: In a survey by Bea et al., it was found that 218 of 1,062 urban residents had a history of allergic…

A: Formula of test statistic : z = p^1 -p^2p(1-p)1n1-1n2 Where , p^1 and  p^2 are sample proportion. n1…

Q: A random sample of n1 = 292 voters registered in the state of California showed that 143 voted in…

A: From the given information, let X1 be the number of registered voters in the state of California…

Q: A national survey of 1000 adult citizens of a nation found that 19% dreaded Valentine's Day. The…

A:

Q: n 1995 , the average duration of long-distance telephone calls originating in one town was 7.7…

A: Answer : This is a two tailed hypothesis.

Q: A survey claims that 9 out of 10 doctors (i.e., 90%) recommend brand Z for their patients who have…

A:

Q: You are conducting a study to see if the proportion of voters who prefer Candidate A is…

A:

Q: It is thought that 12% of all students taking a particular course received a grade of A. In a sample…

A:

Q: An article in the Washington Post on March 16, 1993 stated that nearly 45 percent of all Americans…

A: p^=xn= 2255= 0.40

Q: An airline company is interested in improving customer satisfaction rate from the 78% currently…

A: Hi! Thanks for posting the question. Since there are more than one question we will answer first…

Q: For the ANOVA result, F(4, 153) = 1.102, p = 0.358 how do I answer the folowing?1. How many groups…

A: Given that, F (4, 153) = 1.102, p = 0.358 F (k-1, N-k)

Q: A very wise teacher measured brain activity in all 20 seniors in his Statistics class in the first…

A: We have to find p value for given testing.

Q: In a previous example results were given for a survey of students in a statistics class who measured…

A:

Q: Only about 15% of all people can wiggle their ears. Is this percent different for millionaires? Of…

A: Given that,possible chances (x)=46sample size(n)=350success rate ( p )= x/n = 0.1314success…

Q: 23. The numbers of tourists (in thousands) visiting Table Mountain in Cape Town per quarter, for…

A: Given data is

Q: in october 1947 the gallup organization surveyed 1000 adult americans and asked are you a total…

A: We have given thatn1 = 1000 , x1 = 378n2 = 1000 , x2 = 333Significance level (α) = 0.05Now,p̂1 =…

Q: Of 200 youthful gamers (under 18) who tried the new Z-Box-Plus game, 120 rated it "excellent,"…

A: For the gamer aged "under 18":The sample size, n1=200.The sampled number of gamers, who rated it…

Q: According to a 2015 article, 37% of Americans aged 25 years or older have been arrested. An Orange…

A: Given that sample size n = 120 Number of persons who have been arrested, X = 48 Level of…

Q: In a fishing lodge brochure, the lodge advertises that 75% of its guests catch northern pike over 20…

A: Given that, In a fishing lodge brochure, the lodge advertises that 75% of its guests catch northern…

Q: Time magazine reported the result of a telephone poll adult Americans. The question posed of the…

A: The two proportions z - test would be an appropriate to compare the significant difference between…

Q: steep aphea. live in the inner city have sleep apnea. Of the 317 people from the inner city…

A: An experiment is conducted and the test statistics and p value are given here. g)  The second…

Q: In 2011, the "average" Tasmanian 12-year-old spent 144 mins on the internet per day using a mobile…

A:

Q: Can you conclude that the proportion of boys who are overweight differs from the proportion of girls…

A: Here use  proportion test for 2 sample

Q: What is the correct decision for a test of the difference in two proportions if the test statistic…

A: It is given that the test statistic is 1.99.

Q: In a fishing lodge brochure, the lodge advertises that 75% of its guests catch northern pike over 20…

A:

Q: In a sample of 88 children selected from a city, 8 children suffer from asthma. What is the P-value…

A: Statistical hypothesis testing is an important method in inferential statistics. Statistical tests…