Never Married People The percentage of males 18 years and older who have never married is 30.4 . For females the percentage is 23.6 . Looking at the records in a particular populous county, a random sample of 250 men showed that 86 had never married and 56 of 200 women had never married. At the 0.01 level of significance, is the proportion of men greater than the proportion of women? Use the P -value method and let p1 be the proportion of men. (a)State the hypotheses and identify the claim. (b)Compute the test value. (c)Find the P-value. (d)Make the decision. (e)Summarize the results.

Q: The type of household for the U.S. population and for a random sample of 411 households from a…

A: Given that

Q: A local college recently made the news by offering foreign language-speaking dorms to its students.…

A: Given observed frequency(O) table : Expected frequencies and Test statistics can be calculated as…

Q: Professor Jennings claims that only 35% of the students at Flora College work while attending…

A: Given: Sample size,n= 76 Number of students who have jobs,x= 35  Level of significance=0.05

Q: One sample of scores has a mean of M = 45 and a sample size of n = 10 scores.  A second sample of…

A:

Q: The owner of a bakery wants to know whether customers have any preference among 5 different flavors…

A:

Q: testing in this problem? mean proportion What is the level of significance? e the null and alternate…

A: Given:p_0=35%=0.35 As the population proportion is given, thus we are testing the single…

Q: Test the claim about the population mean y, at the given level of significance using the given…

A:

Q: Given these results, which is the most accurate statement you can present to the board of the energy…

A: The sample size is 50.

Q: The proportion of defective items is not allowed to be over 12%.  A buyer wants to test whether the…

A: Shzhzjzhxvmb

Q: The sample data below represent the number of late and on time flights for three airlines. Flight…

A: The given sample data below represent the number of late and on time flights for three airlines:…

Q: Suppose a random sample of 1398 Californians who own their own homes were surveyed. The table below…

A: Step 1: Add all: Democrat, Republican and Independent/other = 601 + 419 + 378 = 1398 (total)And if…

Q: Test the claim that the proportion of people who own cats is significantly different than 30% at the…

A: From the provided information, Population proportion (p) = 30% that is 0.30 Sample size (n) = 400…

Q: A reporter has claimed that the majority of Colleges in the United States are Private For-Profit…

A:

Q: Proctor & Gamble claims that at least half the bars of Ivory soap they produce are 99.44% pure (or…

A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…

Q: In a survey of 460 drivers from the South, 409 wear a seat belt. In a survey of 340 drivers from the…

A:

Q: The racial distribution for the state of Texas is shown below.   Race White Hispanic Black Other…

A: Given - H0:  The racial distribution at my college is the same as the racial distribution for the…

Q: A social scientist is comparing sample data regarding the number of cars owned per household in a…

A: The sample data about the no. of owned cars per household in the city is compared by the social…

Q: The proportion of students at a large high school who live within five miles of the school is p =…

A: Given: Proportion of students who live within five miles of the school, p=0.19 Sample size, n=17

Q: student decides to spin a dime and determine the proportion of times it lands on heads. The student…

A: We have given that  Sample size n = 25 Favorable cases x =17 Population proportion p =0.5

Q: We know that teenagers (ages 12 to 17) are much more likely to use instant messaging online than…

A: Solution: Given  n1=981 Sample size of teens n2=1217 sample size of adults.x1=736 teens used instant…

Q: Suppose a company wants to determine the percentage of customers who shop online. How many customers…

A: Given dataError = 3% = 0.03Confidence level = 0.92

Q: IN A Sample you had 6503 out of 8896 voters who Supported a candidate. Test that the proportion of…

A: Given that  Sample size n =8896 Favorable cases x =6503 Sample proportion p^=x/n  =6503/8896 =0.7310

Q: f sample variance is computed by dividing SS by df = n - 1, then the average value of the sample…

A: variance is one of the measures of dispersion .It is used to measure how far a set of values are…

Q: If the shaded area corresponds to z=-0.90, what proportion of the distribution corresponds to z >…

A: We have given that the shaded area correspond to z = -0.90.

Q: An ANOVA is used to evaluate the mean differences among three treatment conditions with a sample of…

A: Solution: From the given information, the sample size is 12. That is, n=12. The total degrees of…

Q: Claim: Most adults would erase all of their personal information online if they could. A software…

A: Given n=408 P=0.5 P-cap=0.59

Q: When using the student's t distribution to test what value do you use for the degrees of freedom if…

A: It is given that the sample size is n = 32.

Q: A researcher is trying to determine if nurses who complete a 12-week social activity program have…

A: Given that, A researcher is trying to determine if nurses who complete a 12-week social activity…

Q: Find the standardized test statistic, z, to test the hypothesis that p, < p2. Use a = 0.10. The…

A:

Q: Use the data below to test the claim that the weight loss was greater with the low fat diet compared…

A:

Q: Claim: Most adults would erase all of their personal information online if they could. A software…

A: From the provided information, The hypotheses are as follow: H0: p = 0.50 H1: p &gt; 0.50

Q: A sample consists of the following n = 6 scores: 5, 5, 5, 8, 8, 8 What is the Z-score for the raw…

A:

Q: . What statistical test should he use to analyze the data?

A:

Q: Use a significance level of  0.05. Test the claim that the mean is that the stocks broke even(no…

A: The data is as follows:Since, the computed values are from the data with , consider them as the…

Q: A carpet manufacturer is inspecting for flaws in the finished product. If there are too many…

A: Given information, A carpet manufacturer is inspecting for flaws in the finished product. If there…

Q: The results of a recent poll on the preference of shoppers regarding two products are shown below.…

A: Solution: Let X1 be the number of shoppers fovoring the product A, n1 be the number of shoppers…

Q: Assume that you want to test the claim that the paired sample data below come from a population from…

A: From the given sample values, we can calculate the following Sample size, n = 8 ∑X=240, X¯=30,…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.