Make 1 real-life problem with a solution in any of the following topics; 4. Preforming hypothesis test for Two-Sample Proportion

Q: The actual volume of seven oil cans labeled as 12 liters are as follows: 11.77, 11.90, 11.64, 11.84,…

A: i) 95% confidence interval for the population mean: n=7 df=n-1=7-1=6 from t distribution table, the…

Q: The following data set shows project grades for an elementary statistics class. 15 30 16 21 13 18 27…

A: As per the Bartleby guildlines we have to solve first three subparts and rest can be reposted...…

Q: The times (in seconds) taken to execute computer codes written by 16 students are given below.  78…

A: Question: The times (in seconds) taken to execute computer codes written by 16 students are given…

Q: A large bank vault has several automatic burglar alarms. The probability is 0.6 that a single alarm…

A: From the provided information, The probability is 0.6 that a single alarm will detect a burglar that…

Q: The smaller the p value computer from sample data, the stronger the evidence is against the null…

A: The smaller the p-value computer from sample data, the stronger the evidence is against the null…

Q: 7. 50 percent of the imports of barley into a country came from Dominions, 80 percent of the total…

A:

Q: A regression analysis predicts the undrained shear strength (kPa) of a sandy soil based on depth (m)…

A: Variable: Depth Null Hypothesis: H0: The variable depth is not significant. Alternative Hypothesis:…

Q: A man who moves to a new city sees that there are two routes he could take to work. A neighbor who…

A: Given Data : For Sample 1 x̄1 = 47 n1= 15 s1= 2 For Sample 2 x̄2= 48 n2…

Q: The boxplot below shows salaries for CPAS and Actuaries in a town. СРА Actuary 70 Salary (thousands…

A: if  a person is making the first quartile salary for a CPA , they are making less than ? % of…

Q: 1. Two types of instruments for measuring the amount of sulfur monoxide in the atmosphere are being…

A: Use the Excel and Calculate the Sample Mean and Sample Standard deviation for two groups

Q: THE P-VALUE AND INTERPRETATION CORRECT?

A: Both the p-value and the interpretation are Wrong.

Q: In a village actually involved by anthrax, 70% of the goats were attacked, 85% have been inoculated…

A:

Q: 5) The marketing director of Sea World was concerned about the effectiveness of a recent advertising…

A: a) Pearson's product moment correlation coefficient: x y x^2 y^2 XY 60.51 1.22 3661.46 1.4884…

Q: Hypotheses: Test statistic and P-value. State calculator function used. Conclusion in terms of the…

A: Given : significance level,α= 0.05

Q: As the manager of a large retailing outlet, you have dassified all credit customers as falling into…

A:

Q: As an activity in a high school statistics class, students are investigating the proportion of times…

A: Formula : Test statistic

Q: The law of large numbers states that as the number of observations drawn at random from a population…

A: The law of large number states that as the sample size increases the sample mean approaches to their…

Q: Suppose that we've decided to test Clara, who works at the Psychic Center, to see if she really has…

A: Given: n = 16

Q: It is suspected that vehicle buyers associate the vehicle manufacturer and the size of auto they…

A: Chi square test are used to measure the assoction between the categorical variable. It is a type of…

Q: The maximum amplitude of the characteristic function is unity at =0, i.e, 1øx (@)| søx(0) or |øx(@)|…

A:

Q: A researcher wishes to try three different techniques to lower the blood pressure of individuals…

A: 1. Number of treatments: In the given situation, there are 3 treatments. That is, K=3.00

Q: frequency polygon for the data

A: a. The frequency polygon is Class Mid Frequency 118-126 122 3 127-135 131 5 136-144 140 9…

Q: After the premiere of the new comedy Bumblebee, moviegoers were asked in a quick poll whether they…

A:

Q: There are 32 fantasy novels, 11 science-fiction novels, 5 romance novels, and 7 mystery novels on a…

A: There are 5 romance novels Total novels = 32+11+5+7 = 55

Q: There are 4 levels of measurement namely nominal scale, ordinal scale, interval scale and ratio…

A: Solution-: There are 4 level of measurement namely nominal scale, ordinal scale, interval scale and…

Q: Dawson Products had 20 losses in 1999, 21 in 2000, 43 in 2001, 38 in 2002, and 29 in 2003. What is…

A: According to the given information in this question We need to calculate the value of standard…

Q: A statistician wishing to test a hypothesis that students score at most 75% on the final exam in an…

A:

Q: pplement. To test the theory, the coach randomly selects 9 athletes and gives them a strength test…

A:

Q: if a significance test gives p-value 0.0005... A) the effect of interest is practically significant…

A: The objective is to identify the correct statement if significance test gives p-value 0.0005.

Q: 3 balls of different colors are numbered 1,2, and 3. Construct a sampling distribution with n=2…

A: Solution-: Given: N=3, n=2 Construct a sampling distribution with n=2 (without replacement) then…

Q: + II * 00 0.40 and H_a: p 0.40 H_0: p = 0.40 and H_a: p#0.40 a Save Unanswered Question 37 A report…

A: Select the correct null and alternative hypothesis

Q: The cumulative frequency graph below shows the monthly salaries of employees at a large…

A: We are given with the Cumulative frequency graph that shows the monthly salaries of employees at a…

Q: The average credit card debt for college seniors is $3000. If the debt is normally distibuted with a…

A: A) The senior owes at least $1200

Q: For a normal distribution, find the z-score that separates the distribution as follows: 1. Separate…

A: For the given data Find Z score that separates the distribution

Q: A survey of 500 randomly selected high school students determined that 207 play organized sports.…

A: a) The total number of randomly selected high school students is n = 500.

Q: Find the moment generating function and the characteristic function of a Poisson distribution.

A:

Q: The actual volume of seven oil cans labeled as 12 liters are as follows: 11.77, 11.90, 11.64, 11.84,…

A:

Q: Comparing observations from different populations: The heights of adult men in America are normally…

A: Given data The heights of adult men in america are normally distributedwith mean of 69.7 inches and…

Q: Manual Dexterity Differences A researcher wishes to see if there is a difference in the manual…

A: Disclaimer : “Since you have posted a question with multiple sub-parts, we will solve first three…

Q: Let X be a random variable with the following probability distribution. Value x of X P(X=x) 30 0.45…

A: Let X be the random variable having probability distribution is,  X P(X=x)  30 0.45 40 0.15…

Q: An number cube (a fair die) is rolled 3 times. For each roll, we are interested in whether the roll…

A: For the given data Find the required blanks

Q: 1 'If fx(x)=- -x² /2 find the density function for Y

A:

Q: the sample proportion who bought a ticket would vary from sample to sample. The sampling…

A: Given Data population proportion,p = 0.60 sample size n = 1523

Q: The unemployment rate in a city is 11%. If 10 people from the city are sampled at random, find the…

A:

Q: Find the moment generating function. Also find the first and second moments

A:

Q: ppose that two very large companies (A and B) each select random samples of their employees. Company…

A: From above option

Q: The Bureau of Alcohol, Tobacco, and Firearms (BATF) has been concerned about lead levels in…

A: Given that Maximum = 680 Minimum = 47 Range = 680 - 47 = 633 Margin of error (E) = 10 Significance…

Q: (a) How much does the amount of water increase for each hour that water is added? Oliters (b) What…

A: here use given regression  line for time in hour and water in pond (liter )

Q: An experiment was conducted to compare the effectiveness of four training programs, namely, A, B, C,…

A: 1. Number of treatments: In the given situation, there are 4 treatments. That is, K=4.00

Q: In a sample of 17 days in July, the mean temperature for a certain city was 99.1°F with a standard…

A: Use the t -distribution a) Degrees of Freedom = n-1 = 17 - 1 = 16 Option :- 16   b)  Critical value…