In the example from lecture concerning making community service a requirement, suppose the percentages had been exactly the same, but the sample sizes were 4 times as big: 180 out of 360 students (50%) at the first school are in favor 168 out of 400 students (42%) at the second school are in favor What is the new p value? Choose the value that is closest. a. 0.7% b. 1.4% c. 2.2% d. 2.8%

Q: 4. Suppose the population size N = 5,000 In 2008 the Better Business Bureau settled 75% of…

A:

Q: A sample of 50 potential customers was asked to use your new product and the product of the leading…

A: Let n = sample size = 50 X = number of customers who preferred the product in the sample = 30

Q: In 1941, an organization surveyed 1100 adults and asked, "Are you a total abstainer from, or do you…

A: We have given that For the survey taken in 1941 n1 = 1100x1 = 374p̂ = x1/n1 = 151/429 = 0.3520 And…

Q: Bopulation proportion of 1943 adults who were total abstainers and p, represent the population…

A: Solution: Given N1=1100,  X1=429 N2=1100,  X2=374 (α)= 0.05

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: (a) Obtain the sample size of a no preliminary estimate for p. The formula of sample size is, Use…

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: Assume, p^ be the estimated proportion of computers with new operating system. n be the minimum…

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: Here the parameter, p determines the true proportion (or percentage) of the computers that use a new…

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: Given: Margin of error = 4% Confidence level = 99%

Q: A researcher wishes to estimate the number of households with two computers. How large a sample is…

A: Givenconfidence level = 90%Margin of error(E)=2%=0.02p^=0.45

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A:

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: When we don't have any prior information about population proportion, we generally take it as 0.50.…

Q: Each student in a sample of 20 seniors at a particular university was asked if he or she was…

A: Given that there are 20 Number of sample at a particular university.

Q: In 1945, an organization surveyed 1100 adults and asked, "Are you a total abstainer from, or do you…

A: Let, X1= number of abstainer in the previous test n1= total sample size of the past test p1^ =…

Q: decimal places. a. Complete the table. District Observed Expected A B C D 34 7 17 23 Total 81 000…

A: Ho : pA=0.3, pB=0.1, pC=0.2, pD=0.4  Note: According to bartelby question answer guidelines an…

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: From the provided information, Margin of error (E) = 0.05 Confidence level = 90% Assuming the sample…

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: Sol:- Given Margin of Error = E = 0.02 For 99% Confidence Interval  zα/2=2.576

Q: During the first 13 weeks of the television season, the Saturday evening 8:00 P.M. to 9:00 P.M.…

A: Null and alternative hypotheses: H0: P1=0.29, P2=0.28,P3 =0.24, P4=0.19Ha:Atleast one Pi do not…

Q: In 1944​, an organization surveyed 1100 adults and​ asked, "Are you a total abstainer​ from, or do…

A: We habe to find given proportion.

Q: Food services sent a survey to student, faculty, and staff in order to understand the lunch…

A: Given that, Food services sent a survey to student, faculty, and staff in order to understand the…

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A:

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: Critical value: Here, α = 0.01. Using excel formula “=NORM.S.INV(1-(0.01/2))”, the critical value is…

Q: Before the furniture store began its ad campaign, it averaged 130 customers per day. The manager is…

A: a. For this study , we should use t-test The task here to test whether the population average of…

Q: 2.) Proportions On April 15th, 1912, the R.M.S. Titanic sank into the North Atlantic Ocean,…

A: The required proportion of survivors are obtained as-…

Q: The director of library services at a college did a survey of types of books (by subject) in the…

A: (a) The claim is that the subject distribution of books in the library fits the distribution of…

Q: 1950, an organization surveyed 1100 adults and asked, "Are you a total abstainer from, or do you on…

A: In 1950, Total adults n1=1100                       x1=374 In recent year…

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: Given,Margin of error(E)=0.05α=1-0.90=0.1α2=0.05Z0.05=1.645

Q: Each person in a random sample of 20 students at a particular university was asked whether he or she…

A:

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: Given data,E=3%=0.03Z-value at 90% confidence is Zc=1.645

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A:

Q: Last rating period, the percentages of viewers watching several channels between 11 p.m. and 11:30…

A: The percentage of viewers watching several channels based on the last rating period is given as…

Q: After once again losing a hockey game to the Michigan Tech,the alumini association of NMU conducted…

A: