1. Questions

statistics

According to a survey, only 15% of customers who visited the web site of a major retail store made a purchase. Random samples of size 50 are selected.



a) What proportion of the samples will have less than 15% of customers who will make a purchase after visiting the web site?

a)

______________



b) What proportion of the samples will have between 20% and 30% of customers who will make a purchase after visiting the web site?

b)

______________



c) The standard deviation of all the sample proportions of customers who will make a purchase after visiting the web site is ________.

c)

______________



d) The average of all the sample proportions of customers who will make a purchase after visiting the web site is ________.

d)

______________



e) 90% of the samples will have more than what percentage of customers who will make a purchase after visiting the web site?

e)

  1. 👍
  2. 👎
  3. 👁
Brodice

  1. a.

    1. 👍
    2. 👎
    Joe

  2. ;;;

    1. 👍
    2. 👎
    Anonymous

Respond to this Question

First Name

Your Response

Similar Questions

  1. english

    1. Which of the following sources is least likely to have been edited for accuracy? (1 point) a city newspaper a personal Web site an encyclopedia article a published book 2. Which of the following is NOT true about bias? (1

  2. Math

    A survey of 63 customers was taken at a bookstore regarding the types of books purchased. The survey found that 39 customers purchased mysteries​, 29 purchased science fiction​, 23 purchased romance novels​, 16 purchased

  3. Math

    1.A restaurant surveys 60 of its customers about their new menu. 48 of the customers that take the survey prefer the new menu. A.Which value is unknown in this problem: the part, percent, or whole? B.Write and solve the proportion

  4. Math

    In a survey of 300 college graduates, 58% reported that they entered a profession closely related to their college major. If 6 of those survey subjects are randomly selected without replacement for a follow-up survey, what is the

  1. World History

    Which of the following is NOT true about bias? Answer: a) Using both biased and non-biased resources in research will create bias results b) Bias can be identified by the facts that the Web site includes as well as the facts that

  2. statistic

    A survey was made of 100 customers in a department store. 70 of the customers indicated they visited the store because of a newspaper advertisement. The remainder had not seen the ad. A total of 40 customers made purchases; of

  3. Math Help Please? c: Thank you :3

    At your summer job with a research company, you must get a random sample of people from your town to answer a question about spending habits. Which of the following methods is most likely to be random? A) You survey customers at

  4. typing

    You are researching the Holocaust for a school paper and have located several Web sites for information. In three to five sentences, describe the method you would use to determine whether each Web site is a suitable source of

  1. Keyboarding and Applications

    You are researching the Holocaust for a school paper and have located several Web sites for information. In three to five sentences, describe the method you would use to determine whether each Web site is a suitable source of

  2. Algebra

    You operate a gaming Web site, where users must pay a small fee to log on. When you charged $3 the demand was 520 log-ons per month. When you lowered the price to $2.50, the demand increased to 780 log-ons per month. (a) Construct

  3. Mathematics

    1.​At your summer job with a research company, you must get a random sample of people from your town to answer a question about spending habits. Which of the following methods is most likely to be random? a. You survey customers

  4. Statistics

    According to a recent survey, 75% of all customers will return to the same grocery store. Suppose 8 customers are selected at random: A) What is the probability that exactly five of the customers will return? B) What is the

You can view more similar questions or ask a new question.