A First Course in Probability (10th Edition)
10th Edition
ISBN: 9780134753119
Author: Sheldon Ross
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Related questions
Question
Transcribed Image Text:**Binomial Probability Distributions**
**Scenario:** You work in sales and you make 25 phone calls to potential clients every day. The probability that you make a sale is 30% on any one phone call. Use this information to complete the following questions.
| Question Number | Question | Answer |
|-----------------|---------------------------------------------------------------------------------------------------------|----------|
| Q1 | Is the selection of 25 phone calls a binomial experiment? | |
| Q2 | What is the mean? | |
| Q3 | What is the variance? | |
| Q4 | Create a probability distribution graph. | Label Q4 |
| Q5 | What is the probability that you make 10 sales? | |
| Q6 | What is the probability that you make at least 5 sales? | |
| Q7 | What is the probability that you make more than 8 sales? | |
| Q8 | What is the probability that you make between 7 and 15 sales? | |
| Q9 | What was the best book you read or movie you watched this year? | |
**Note:** The table includes questions related to binomial probability distribution and a question about personal interests, which might be part of a broader survey or assignment for engagement purposes. The answer column is left blank for user input.
Expert Solution
arrow_forward
Step 1: We have given that
n = 25
Note: According to bartelbyquestion answer guidelines an expert can solve only three subpart of one question rest can be reposted.
Step by stepSolved in 3 steps
Knowledge Booster
Similar questions
- Sixty-three percent of U.S. households have a personal computer. In a random sample of 400 households, determine the mean of the binomial distribution.arrow_forwardQuestion: A company conducted a survey to gather data on the ages of its employees. The collected data are as follows: 25, 28, 30, 35, 38, 40, 42, 45, 48, 50. Calculate the range, variance, and standard deviation of the ages.arrow_forwardThe p-value is which? the same as the z statistic. a sample statistic. a probability. a distance.arrow_forward
- The top 16 winning scores for NFL games are listed below. Find the mean score. Video Tutorial: How to find the mean on a TI-84 72 54 52 54 70 51 56 58 58 52 51 63 51 48 52 61 A. 54 B. 57.1 C. 63.2 D. 56.4arrow_forwardThe boxplot below shows salaries for Construction workers and Teachers. Construction Teacher H 20 25 30 35 Salary (thousands of $) 40 They are making more than 1 45 50 If a person is making the first quartile salary for a construction worker, they are making more than what percentage of Teachers? % of Teachers. Qarrow_forwardStatistics students believe that the mean score on a first statistics test is 65. The instructor thinks that the mean score is higher. She samples 10 statistics students and obtains the scores: Grades 73.5 63.9 64.3 85.5 62.7 69 88 63.9 65 64.3 Test grades are believed to be normally distributed.Use a significance level of 5%.arrow_forward
- A survey was conducted two years ago asking college students their top motivations for using a credit card. You think this distribution has changed. You randomly select 425 college students and ask each one what the top motivation is for using a credit card. Can you conclude that there has been a change in the distribution? Use a = 0.025. Complete parts (a) through (d). Response Old Survey % 29% New Survey Frequency, f Rewards 110 Low rates Cash back Discounts 23% 96 21% 109 7% 46 Other 20% 64 O B. The distribution of motivations is 110 rewards, 96 low rate, 109 cash back, 46 discounts, and 64 other. O C. The distribution of motivations is 29% rewards, 23% low rate, 21% cash back, 7% discounts, and 20% other. Which hypothesis is the claim? o Ho (b) Determine the critical value, Yo, and the rejection region. X = 11.143 (Round to three decimal places as needed.) Choose the correct rejection region below. Oc. Xarrow_forwardR1arrow_forwardO Macmillan Learning The domestic cat, Felis catus, is a domesticated furry creature often kept as a pet in many countries. Suppose a volunteer at a local animal shelter wanted to find out a little more about the cats in her care. The volunteer carefully measured the height for the 10 fully grown adult cats at her shelter. The height measurements were taken from the base of the foreleg to the shoulder. The table shows the results of the measurements. Calculate the mean, variance, and standard deviations for cat height for the sample of shelter cats. Report all your answers to two decimal points. mean: variance: standard deviation: in in² in Sample 1 2 3 4 5 6 7 8 9 10 Height (in) 10.5 13 7.7 7.5 9.55 10.5 10.85 12.3 8.15 7.85arrow_forwardThe first pic is the question. Since some tutors have been solving the problems wrong recently (no judgment), I’ve added a sample question to solve problem.arrow_forwardMacmillan Learning An extensive study in Antarctica concluded that the mean height of adult emperor penguins in the wild is 44.5 in. Cassandra believes that captive emperor penguins have a greater mean height due to better nutrition. To test this idea, she decides to conduct a one-sample t-test to see if the mean height of captive emperor penguins is greater than 44.5 in. She selects a simple random sample of 26 penguins from different zoos around the country and has each penguin measured. The summary statistics of the sample are given below. Sample size n = 26 Sample mean x = 45.6 in Sample standard deviation s = 4.3 in The heights of emperor penguins are normally distributed, and there are no outliers in the sample. Construct the null and alternative hypothesis for the appropriate one-sample t-test for the mean height of captive emperor penguins. Ho: H₁: =arrow_forwardYou roll 36 dice over and over. what is standard error of sampling distribution of x-bar (the mean)?arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
Recommended textbooks for you
- A First Course in Probability (10th Edition)ProbabilityISBN:9780134753119Author:Sheldon RossPublisher:PEARSON
A First Course in Probability (10th Edition)
Probability
ISBN:9780134753119
Author:Sheldon Ross
Publisher:PEARSON