Based on a​ poll, 60​% of adults believe in reincarnation. Assume that 8 adults are randomly​ selected, and find the indicated probability. Complete parts​ (a) through​ (d) below.a. What is the probability that exactly 7 of the selected adults believe in​ reincarnation?The probability that exactly 7 of the 8 adults believe in reincarnation is __.​(Round to three decimal places as​ needed.)b. What is the probability that all of the selected adults believe in​ reincarnation?The probability that all of the selected adults believe in reincarnation is __.​(Round to three decimal places as​ needed.)c. What is the probability that at least 7 of the selected adults believe in​ reincarnation?The probability that at least 7 of the selected adults believe in reincarnation is __. ​(Round to three decimal places as​ needed.)d. If 8 adults are randomly​ selected, is 7 a significantly high number who believe in​ reincarnation?A. No​, because the probability that 7 or more of the selected adults believe in reincarnation is less than 0.05.B. Yes​, because the probability that 7 or more of the selected adults believe in reincarnation is greater than 0.05.C. Yes​, because the probability that 7 or more of the selected adults believe in reincarnation is less than 0.05.D. No​, because the probability that 7 or more of the selected adults believe in reincarnation is greater than 0.05.

Question
Asked Feb 13, 2020
59 views

Based on a​ poll, 60​% of adults believe in reincarnation. Assume that
8 adults are randomly​ selected, and find the indicated probability. Complete parts​ (a) through​ (d) below.
a. What is the probability that exactly 7 of the selected adults believe in​ reincarnation?

The probability that exactly 7 of the 8 adults believe in reincarnation is __.​(Round to three decimal places as​ needed.)

b. What is the probability that all of the selected adults believe in​ reincarnation?

The probability that all of the selected adults believe in reincarnation is __.​(Round to three decimal places as​ needed.)

c. What is the probability that at least 7 of the selected adults believe in​ reincarnation?

The probability that at least 7 of the selected adults believe in reincarnation is __. ​(Round to three decimal places as​ needed.)

d. If 8 adults are randomly​ selected, is 7 a significantly high number who believe in​ reincarnation?

A. No​, because the probability that 7 or more of the selected adults believe in reincarnation is less than 0.05.

B. Yes​, because the probability that 7 or more of the selected adults believe in reincarnation is greater than 0.05.

C. Yes​, because the probability that 7 or more of the selected adults believe in reincarnation is less than 0.05.

D. No​, because the probability that 7 or more of the selected adults believe in reincarnation is greater than 0.05.

check_circle

Expert Answer

star
star
star
star
star
1 Rating
Step 1

a.

Let X be the number of adults believe in reincarnation, hence, X follows binomial distribution ( 8, 0.60).

The probability that exactly 7 of the 8 adults believe in reincarnation  is obtained below:

Statistics homework question answer, step 1, image 1

Step 2

b

The probability that all of the selected adults believe in reincarnation is obtained below:

Statistics homework question answer, step 2, image 1

...

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Math

Statistics

Related Statistics Q&A

Find answers to questions asked by student like you
question_answer

Q: This my third time posting the same question. Because no one answer it straight to me. I already ans...

A: According to the provided information, there are two variables – arr gene, A and a, and bee gene, B ...

question_answer

Q: Does the frequency distribution appear to have a normal​ distribution? Explain. Te...

A: The frequency distribution for temperature is provided. A bar chart is used to obtain the normality ...

question_answer

Q: PROBLEM 2: Average wait in minutes for the train QM3; n=12   15   4   5   9   6   12   17   10   8  ...

A: The data is provided for the average wait in minutes for the train QM3; n =12 as 15, 4, 5, 9, 6, 12,...

question_answer

Q: Trevor is interested in purchasing the local hardware/sporting goods store in the small town of Dove...

A: Click to see the answer

question_answer

Q: 1. Gender is one variable of interest in a study of the effectiveness of a new medication. For data ...

A: Qualitative variables and Quantitative variables: The variables are the characteristics about which ...

question_answer

Q: Data on salaries in the public school system are published annually in National Survey of Salaries a...

A: Consider X be a random variable which follows normal distribution indicating the annual salary of cl...

question_answer

Q: Dr. El-Saidi collected data on the number of hours spent by his 100 students over the weekend to pre...

A: Person mode of skewness: Skewness = 3(Mean-Median)/σ

question_answer

Q: Suppose a professor gives an exam to a class of 40 students and the scores are as follows. (Type the...

A: From the given information, Sample data: 35 44 46 47 47 48 49 51 53 54 55 ...

question_answer

Q: need help with 14& 15 pls

A: Hey, since there are multiple questions posted, we will answer first question. If you want any speci...

question_answer

Q: (a) Draw a tree diagram to display all the possible head-tail sequences that can occur when you flip...

A: (a) Construct a tree diagram. It is given that a coin is flipped three times. A tree diagram of a co...

question_answer

Q: According to the American Red Cross, 8% of all Connecticut residents have type B blood. A random sam...

A: Let X be the number of CT residents who have type B blood which follows binomial distribution. Here,...

question_answer

Q: Delta Airlines flights from Bostin to Seattle are on time 70% of the time. Suppose 10 flights are ra...

A: It is given that Delta Airlines flights from Bostin to Seattle selected 10 flights at random to reco...

question_answer

Q: In a sales effectiveness seminar, a group of sales representatives tried two approaches to selling a...

A: a) Similarly,

question_answer

Q: For a distribution in which X = 100, SX = 16, and N = 500: (a) What is the relative frequency of sco...

A: Hi! Thank you for posting the question. Since your question has more than three sub-parts, we have s...

question_answer

Q: The risk of hepatoma among alcoholics without cirrhosis of the liver is 24%. Suppose we observe 7 al...

A: From the given information p = 0.24 and n = 7.

question_answer

Q: Suppose you have an unusual die with four faces marked 1 and two marked 2. You roll it 20 times. (Ro...

A: Click to see the answer

question_answer

Q: Instructor-created question E Question Help Suppose an antibiotic has been shown to be 60% effective...

A: Given that, N=8 Probability of success (p) = 60% =0.6 Probability of failure (q) = 1-p=0.4

question_answer

Q: The following are body mass index (BMI) scores measured in 12 patients who are free of diabetes and ...

A: Step-by-step procedure to obtain the mean and standard deviation using Excel. In Excel sheet, enter...

question_answer

Q: PROBLEM 4:  Grades received in BUS310-01 course: 66        53        89        92        98        7...

A: Hey, since there are multiple sub-part questions posted, we will answer first three sub-parts. If yo...

question_answer

Q: graph the number on a number line counting numbers between 3 and 8

A: The real number can be represented on a number line. The number line helps to identify a particular ...

question_answer

Q: Find the mean of the data summarized in the frequency distribution.  A company had 8- employees whos...

A: The following table gives the dataset with the required calculations:

question_answer

Q: Suppose that the mean daily viewing time of television is 8.35 hours. Use a normal probability distr...

A: Given that, Mean time of viewing time of television = 8.35 hours Standard deviation of viewing time ...

question_answer

Q: 4. Parking at a university has become a problem. University administrators are interested in determi...

A: Variable: A variable is any characteristic that is recorded for each case.

question_answer

Q: Drug manufactures of Drug X, which was released on the market 5 years ago to treat Crohn’s disease, ...

A: According to the provided data, there are a total, n of 6 individuals who developed drug-induced lup...

question_answer

Q: Suppose you have an unusual die with four faces marked 1 and two marked 2. You roll it 20 times. (Ro...

A: It is given that the die has 4 ones and 2 twos. That is probability of getting 1, p is 2/3 (=4/6). T...

question_answer

Q: Question: I am unsure of how to solve this problem.  Can you please assist?  The answer given is 306...

A: From the given information, the regression equation is mileage = 45 – 7.5 × weight.   Here, the mile...

question_answer

Q: The time to failure of a certain type fo electrical component is assumed to follow an exponential di...

A: From the provided information, the time to failure of a certain type of electrical component is assu...

question_answer

Q: True or False? When calculating a confidence interval for one sample with a continuous outcome and t...

A: The answer is True. Generally, when calculating a confidence interval for one sample with a continuo...

question_answer

Q: Based on a​ poll, 60​% of adults believe in reincarnation. Assume that 8 adults are randomly​ select...

A: The probability that exactly of the selected adults believe in reincarnation is,

question_answer

Q: A researcher suspects that the actual prevalence of generalized anxiety among children and adolescen...

A: The correct option is A) Z=1.12.

question_answer

Q: The sizes of houses in Kenton County are normally distributed with a mean of 1369 square feet with a...

A: From the given information, the mean and standard deviation are 1,369 and 171.

question_answer

Q: 3. A recent report stated "Based on a sample of 130 truck drivers, there is evidence to indicate tha...

A: In inferential statistics, the researcher takes data from samples and make generalizations about a p...

question_answer

Q: A new drug to treat psoriasis has been developed and is in clinical testing. Assume that those indiv...

A: The null and alternative hypotheses are; Null hypothesis: the distribution of the severity of psoria...

question_answer

Q: there are 100 students in a first year university in take,36 of them are male and are studying accou...

A: The total number of students is 100. The number of students who are male and studying accounting is ...

question_answer

Q: A researcher suspects that the actual prevalence of generalized anxiety among children and adolescen...

A: Formulation of Hypothesis Null Hypothesis:- Prevalence of generalized anxiety among children and ado...

question_answer

Q: Let X be the damage incurred (in $) in a certain type of accident during a given year. Possible X va...

A: From the provided information, x 0 1000 5000 10000 P(x) 0.84 0.08 0.06 0.02 ...

question_answer

Q: Alexa is the popular virtual assistant developed by amazon. Alexa interacts with users using artific...

A: A) The probability there are 2100 or fewer downloads of amazon Alexa in a day is, Thus, the probabi...

question_answer

Q: Find the area to the right of the z-score 1.40 and to the left of the z-score 1.58 under the standar...

A: Standard Normal Distribution: A random variable z is said to be a standard normal variable if z foll...

question_answer

Q: State whether the data described below are discrete or continuous and explain why. The volume of dif...

A: From the given information, Quantitative variable: it refers to those variables which can be measure...

question_answer

Q: Use the data in the following table to answer the question. Assume that orders are randomly selected...

A: According to the provided information, a table of the Order accurate and Order not accurate of 4 dif...

question_answer

Q: Part D&E&F

A: (Here even though 28 ROBOTS mentioned in question, there are only 27 data points. So considering the...

question_answer

Q: In August 2012, tropical storm Isaac formed in the Caribbean and was headed for the Gulf of Mexico. ...

A: a) Events H denotes that Isaac becomes a hurricane by the time it reaches the Gulf of Mexico and T d...

question_answer

Q: At a restaurant, the probability that a customer will order a nonalcohlic drink is .56. Find the pro...

A: From the provided information, The probability that a customer will order a nonalcoholic drink is 0....

question_answer

Q: How does the concept of probability and the distribution of sample means relate to the testing of a ...

A: We know that the sample mean distribution will be either normal distribution or T distribution. If w...

question_answer

Q: The time needed to complete a final examination in a particular college course is normally distribut...

A: It is given that the time needed to complete the final exam is normally distributed with mean 79 min...

question_answer

Q: With a binomial distribution with n = 25 and p = 0.48, which is larger?     P(12 successes) ...

A: From the given information p = 0.48 and n = 25.

question_answer

Q: Serena works 24 hours per week. Her benefits are prorated at 60% of that of a full-time employee. Fu...

A: From the given information, the full time employee receives 3.7 hours of vacation time per pay perio...

question_answer

Q: Use the fact that IQ score are normally-distributed with a meal of 100, standard deviation of 15 to ...

A: Note: Hey, since there are multiple subparts are posted, we will answer first three subparts for you...

question_answer

Q: Question 31 parts A and B

A: a). The correlation between Mantel Width and Mantel length is as follows: Step-by-step procedure to ...

question_answer

Q: True or False? For a two-tailed test using z values at the .05% significance level we reject H0 if z...

A: It is required to explain whether the given statement that "A researcher rejects the null hypothesis...