187 families have health insurance out of a random sample of 292 families. Kaiser states that the proportion of families who have health insurance is 63%. Can it be concluded that the proportion of families who have health insurance is greater than 63% based on a-level of 0.04?

Q: Anita's, a fast-food chain specializing in hot dogs and garlic fries, keeps track of the proportion…

A:

Q: sociologist feels that the median age at which women marry in Palawan, is less than the median age…

A: Given: Age 31 27 30 25 21 27 32 23 30 24 24 28 25 23 22 24 24…

Q: Out of 600 customers, 360 like the new plastic bottle packaging of a certain softdrink. Is there…

A: Given : Out of 600 customers, 360 like the new plastic bottle packaging of a certain soft drink. The…

Q: It is claimed that the proportion of men who want football matches to be broadcast more frequently…

A: Provided information is ;                      Null hypothesis : H0 :  P1 = P2 versus Alternative…

Q: Last year, 46% of business owners gave a holiday gift to their employees. A survey of business…

A: Given: population proportion(p)=0.46sample proportion(p^)=0.35sample size(n)=60

Q: Anita's, a fast-food chain specializing in hot dogs and garlic fries, keeps track of the proportion…

A:

Q: To study whether the students at a university are more or less satisfied with the current food…

A: 37 out of 95 current students are satisfied with the current food service 42 out of 89 students were…

Q: Among college students, the proportion p who say they're interested in their congressional…

A: The random variable interest rate follows normal distribution. We have to test whether the…

Q: Last year, 46% of business owners gave a holiday gift to their employees. A survey of business…

A:

Q: n New York City, a study was conducted to evaluate whether any information that is available at the…

A: (a) Obtain the sample size of a preliminary estimate for p is 0.10 with the 95% confidence. The…

Q: It has been reported that 65% of the U.S. adult population play video games in their leisure time. A…

A: Given that  Sample size n =195 Favorable cases x =125 Sample proportion p^=x/n  =125/195 =0.6410

Q: Anita's, a fast-food chain specializing in hot dogs and garlic fries, keeps track of the proportion…

A: Given: n=50 p=0.52 a) The expected number of customers in the sample who order their food to go is…

Q: Among college students, the proportion p who say they're interested in their congressional…

A: Given X=185 n=260

Q: In a recent survey, it was stated that Americans watch television on average four hours per day.…

A: It is provided that the sample mean is 40. As the average time of watching television can never be…

Q: Anita's, a fast-food chain specializing in hot dogs and garlic fries, keeps track of the proportion…

A: From the provided information, Anita’s reports that 48% of its customers order their food to go that…

Q: A law enforcement agent believes that 80% of the drivers stopped on Saturday nights for speeding are…

A:

Q: Suppose that the proportion of citizens in a local community who use bus transportation was reported…

A: The random variable X follows normal distribution. We have to test whether the proportion of bus…

Q: Anita's, a fast-food chain specializing in hot dogs and garlic fries, keeps track of the proportion…

A:

Q: To study whether the students at a university are more or less satisfied with the current food…

A:

Q: Anita's, a fast-food chain specializing in hot dogs and garlic fries, keeps track of the proportion…

A:

Q: In a random sample of 207 potential voters registered in the state of Mississippi, 62 indicated that…

A:

Q: In a National Institute on Alcohol Abuse and Alcoholism survey, 33% of American adults said that…

A: Given: n= 2300 ,x= 805 p= 0.33 ,significance level(∝)= 95.0 p̂= 805 / 2300 =define hypothesis;-

Q: Suppose we want to test whether women are more likely to own a cat than men. We randomly sample 200…

A: The test hypotheses are given below: Null hypothesis: H0:p1=p2 Alternative hypothesis: H1:p1>p2…

Q: 12% of all Americans suffer from sleep apnea. A researcher suspects that a higher percentage of…

A:

Q: Among college students, the proportion p who say they’re interested in their congressional…

A: Given:  Among the college students the proportion p who say they’re interested in their…

Q: previous food service, a sample of 93 current students is taken and finds that 40 are satisfied with…

A: Given that  Previous food service  Current food service  Sampled (n1) = 82 sampled (n2) = 93…

Q: In a survey of 526 US business, 400 indicated that they monitor employee's web site visits. Is there…

A: Given: Out of 526 US businesses, 400 indicate that they monitor employee's website visits. The…

Q: Anita's, a fast-food chain specializing in hot dogs and garlic fries, keeps track of the proportion…

A: Given information: Anita's, a fast-food chain specializing in hot dogs and garlic fries, keeps track…

Q: Among college students, the proportion p who say they’re interested in their congressional…

A: Givensample size(n)=255x=172p^ =172255=0.675α=0.05

Q: In a survey, 37% of the respondents stated that they talk to their pets on the telephone. A…

A: given  P0 =0.37 n=170

Q: The Associated Press found that 730 of 1000 randomly selected adults preferred to watch movies at…

A: Null and alternative hypotheses: The hypothesis, which is pre assumed as true, tentatively settled…

Q: Among college students, the proportion p who say they’re interested in their congressional…

A: From the provided information, Sample size (n) = 250 From which 180 students say they’re interested…

Q: A random sample of 287 people are asked if they like eating hot dogs and 182 said they do. Comfort…

A: Suppose, p be the claimed proportion of people who like to eat hot dogs. and p^ be the sample…

Q: In a survey, 37% of the respondents stated that they talk to their pets on the telephone. A…

A: Given: x = 54n=160p^=xn=54160=0.3375α=0.01 The test hypothesis are, H0: p = 0.37 H1: p < 0.37.…

Q: The manufacturer of a new racecar engine claims that the proportion of engine failures due to…

A: Step 2: n1=135 n2=175 x1=14 x2=8 The sample proportion of p^1 is, p^1=x1n1    =14135   =0.104

Q: In a survey, 45% of the respondents stated that they talk to their pets on the telephone. A…

A: Given,n=240x=104p^ =xn p^ =104240 p^ =0.4333H0 :P=0.45H1 : P<0.45α=0.01

Q: Anita's, a fast-food chain specializing in hot dogs and garlic fries, keeps track of the proportion…

A: According to Anita's reports it is given that 52% of its customers order their food to go and a…

Q: State the null hypothesis H0 and the alternative hypothesis H1 . H0: H1: (b) Determine the type of…

A: Given that  Sample size n =270 Favorable cases x =194 Sample proportion p^=x/n  =194/270 =0.7185…

Q: In a survey, 45% of the respondents stated that they talk to their pets on the telephone. A…

A: From the provided information, The test statistic value z = -0.52. Level of significance (α) = 0.01

Q: Anita's, a fast-food chain specializing in hot dogs and garlic fries, keeps track of the proportion…

A: Solution: Let X be the random variable defined as the number of customers who order their food "to…

Q: 3. It is claimed that the percentage of viewers tuned to Channel 2's new sitcom is 30%. Out of the…

A: 3. The provided information isn=250p^=0.29α=0.05 a. The null and alternative hypothesis…

Q: A university counselor believes that hypnosis is more effective than the standard treatment given to…

A: There are two types of tests in the hypothesis. 1.parametric test and 2.Non parametric test. If the…

Q: A researcher took a random sample of 200 new mothers in the United States (Group 1) and found that…

A:

Q: each of the tests, what would be the conclusion if the test were carried out using the α = 0.05…

A: As the population S.D is known, w will use z test. The null and alternative hypotheses are, Ho: \mu…

Q: A brokerage firm is curious about the proportion of clients who have high-risk stocks in their stock…

A:

Q: The manufacturer of a new racecar engine claims that the proportion of engine failures due to…

A: Solution: Given information: n1= 115 Sample size of new engine x1= 12 new engine failed n2= 120…

Q: The administration of a University claims that 47 percent of the students change their major area of…

A:

Q: The manufacturer of a new racecar engine claims that the proportion of engine failures due to…

A: Given data : x1= 14.0 n1= 135 x2= 8.0 n2= 175

Q: The National Institute of Mental Health published an article stating that in any one-year period,…

A:

Q: The manufacturer of a new racecar engine claims that the proportion of engine failures due to…

A:

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.