Find the probabilty that a  randomly sampled person either  uses  a  debit card or does not get a  vanilla icecream

Q: Devin is a researcher for a pharmaceutical company testing whether a new prescription pain…

A: The hypothesized proportion is 0.06.

Q: Suppose that in a random selection of 100 colored​ candies, 26​% of them are blue. The candy company…

A: Given information: Sample size (n) =100 Sample proportion = 0.26 Significance level = 0.05 Let…

Q: = Guestion Heip In a survey, 43% of the respondents stated that they talk to their pets on the…

A: Given that, Sample size n=160 Sample proportion of pet owners who spoke to their pets on telephone…

Q: Because 25 percent of the students in my morning statistics class watch eight or more hours of…

A:

Q: Suppose we’re looking at a two-candidate mayoral race in France. Candidate X is declared the winner…

A: Solution: In a two-candidate mayoral race in France, candidate X is declared the winner with 55…

Q: ber of initiatives on the topic of legalized gambling have appeared on state ballots. A political…

A: The hypothesized proportion (p) is 2/3=0.6667.

Q: Suppose that in a random selection of 100 colored​ candies, 29​% of them are blue. The candy company…

A: B.H0​:p=0.2     H1​:p≠0.2

Q: Let p1 denote the proportion of ault males in Australia that smoke and let p2 denote the proportion…

A: a) Decision rule: This is a left-tailed test as Ha: p1-p2 < 0.03 If test statistic is less than…

Q: Store owner asks 55 people in City A and 50 households in City B whether anyone in their household…

A: Introduction: Denote p1, p2 as the true population proportions of households that had used their…

Q: Suppose that in a random selection of 100 colored​ candies, 21​% of them are blue. The candy company…

A: Given that, n=100,p=0.25p^=0.21 The null and alternative hypothesis is,

Q: A salesman for a new manufacturer of cellular phones claims not only that they cost the retailer…

A:

Q: The National Center for Education Statistics would like to test the hypothesis that the proportion…

A: GivenThe national center for education statistics would like to test the hypothesisthat the…

Q: A quality engineer is asked to determine whether less than 2% of all flasks received by its company…

A:

Q: The National Center for Education Statistics would like to test the hypothesis that the proportion…

A:

Q: Suppose that in a random selection of 100 colored​ candies, 21​% of them are blue. The candy company…

A: We have given thatn = 100p̂ = 0.21p = 0.25Significance level (α) = 0.10 The null and alternative…

Q: A random sample of 175 students was selected from a large high school. They were each asked their…

A: It is needed to check, whether the there is a relationship between grade level and having a driver’s…

Q: Are freshmen psychology majors just as likely to change their major before they graduate compared to…

A: From the given information, it is observed that the test is about two population proportions. Thus,…

Q: A politician believes that 60% of constituents are in favor of a particular issue. She takes a…

A: Null hypothesis:A statistical hypothesis which is assumed and whose validity is tested for possible…

Q: If you use a 0.05 level of significance in a two-tail hypothesis test, what decision will you make…

A: Solution: 4. From the given information, ZSTAT = –0.45 and the test is two-tailed.

Q: A local school board wants to determine if the proportion of households in the district that would…

A: It is given that P-value for testing H0 : p = 0.65 vs Ha : p ≠ 0.65 is = 0.29

Q: A random sample of 175 students was selected from a large high school. They were each asked their…

A:

Q: Dr J claims that 40 percent of his college algebra class will drop his course by midter,. To test…

A:

Q: The Bangor Humane Society tracks dog adoptions closely, and in the past has seen 40% of people who…

A: Solution: From the given information, percentage of people who come in to look at dogs end up…

Q: Suppose you have two boxes A and B. Box A contains 7 black marbles, 4 white marbles. Box B contains…

A: Hi, Thank you for posting the questions. As you have posted more than one question and your first…

Q: A school principal claims that 40% of the students of the school are dissatisfied by the community…

A: Given : Claim : 40% of the students of the school are dissatisfied by the community.  The sample…

Q: The currently used medicine is successful for 26% of patients. A new experimental medication is…

A: sample size(n)=500no.of patients successful for new experimental medication (X)=140sample proportion…

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: Are beer (B), wine (W), and liquor (L) equally favored by Americans as the alcoholic drink they…

A: Claim: The distribution of beer, wine and liquor are equally favoured by Americans as the alcoholic…

Q: Let p1 denote the proportion of ault males in Australia that smoke and let p2 denote the proportion…

A:

Q: A wildlife biologist is doing research on chronic wasting disease and its impact on the deer…

A:

Q: After a product recall, a company solicits feedback from a random sample of 100 customers regarding…

A: Solution: Given information: n= 100 observation k= 3 categories   To test the hypothesis  Ho: The…

Q: Suppose in one sample hypothesis test, if the test statistic value is -1.09 and the table value is…

A: Given  test statistic=-1.09, tabulated=1.96

Q: In a survey of 247 households, it was found that 168 owners had a dog as a pet. In a survey of 282…

A:

Q: A hypothesis test was performed to decide whether houses are more prone to being lost to fire than…

A:

Q: Suppose that in a random selection of 100 colored​ candies, 22​% of them are blue. The candy company…

A:

Q: What is the test statistics to test the Null hypothesis H0 : p = 0.37 against the alternative, Ha :…

A: It is given that  Population proportion, p = 0.37 Favourable cases, X = 82 Sample size, n = 103…

Q: salesman for a new manufacturer of cellular phones claims not only that they cost the retailer less…

A:

Q: Coach Elyson claims that 90% of her volleyball serves are good serves. The captain of the team…

A: The p-value method is one of the two ways of conducting hypothesis testing in inferential…

Q: The state superintendent of schools consistently states that the average salary of all substitute…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: An experiment compares the taste of instant coffee versus fresh brewed.  Each subject tastes two…

A: It is given that the number of participants is 50 and the number of preferred the instant coffee is…

Q: Marco conducts a hypothesis test and calculates that his sample results have a p-value of .052, what…

A: Let us assume that level of significance, α=0.05 Given, p-value =0.052

Q: Suppose that in a random selection of 100 colored​ candies, 27​% of them are blue. The candy company…

A:

Q: A politician believes that 60% of constituents are in favor of a particular issue. She takes a…

A: The hypotheses are given below:

Q: To apply the two-sample t procedures, use Option 1 if you have technology that implements that…

A:

Q: After grading the quizzes, Mr. Montes decides that his students could use some additional practice…

A:

Q: An educator believes that the proportion of finance majors seeking to earn an MBA degree equals the…

A: Here , 2 proportion Z test is applicable

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

A: Solution is uploaded below

Q: An airline company claims in a recent advertisement that at least 94% of passenger luggage that it…

A: Form the given statement we are suppose to choose the correct answer.So for doing so let's state the…

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.