In a bag of 330 chocolate​ candies, 34 of them are brown. The candy company claims that ​13% of its plain chocolate candies are brown. For the​ following, assume that the claim of ​13% is​ true, and assume that a sample consists of 330 chocolate candies. a. Values of ? brown candies or greater are significantly high.

A teacher announces a pop quiz for which the student is completely unprepared. The quiz consists of 20​ true-false questions. The student has no choice but to guess the answer randomly for all 20 questions. The accompanying table gives the 20 correct​ answers, which were actually randomly generated. Complete parts a. and b. below.   a. How many questions can the student expect to answer correctly simply by​ guessing?   b. What percentage of answers were​ true, and what percentage would you​ expect? Why are they not necessarily​ identical?   The percentage of answers that were true was?   The expected percentage of answers that would be true is?   Why are these answers not necessarily​ identical?   A. With random​ phenomena, the proportion of times that something happens is highly predictable in the short run.   B. With random​ phenomena, the proportion of times that something happens is highly random and variable in the short run.   C. With random​ phenomena, the…

A group of 91 students were surveyed about the courses they were taking at their college with the following results:39 students said they were taking Math.47 students said they were taking English.38 students said they were taking History.14 students said they were taking Math and English.16 students said they were taking Math and History.27 students said they were taking English and History.11 students said they were taking all three courses.How many students took none of the courses    ?

You may need to use the appropriate technology to answer this question. Scores in the first and fourth (final) rounds for a sample of 20 golfers who competed in PGA tournaments are shown in the following table. Player FirstRound FinalRound Michael Letzig 70 72 Scott Verplank 71 72 D. A. Points 70 75 Jerry Kelly 72 71 Soren Hansen 70 69 D. J. Trahan 67 67 Bubba Watson 71 67 Reteif Goosen 68 75 Jeff Klauk 67 73 Kenny Perry 70 69   Player FirstRound FinalRound Aron Price 72 72 Charles Howell 72 70 Jason Dufner 70 73 Mike Weir 70 77 Carl Pettersson 68 70 Bo Van Pelt 68 65 Ernie Els 71 70 Cameron Beckman 70 68 Nick Watney 69 68 Tommy Armour III 67 71 Suppose you would like to determine if the mean score for the first round of a PGA Tour event is significantly different than the mean score for the fourth and final round. Does the pressure of playing in the final round cause scores to go up? Or does the increased player concentration…

A statistics teacher asked two different students, Lexie and Jennifer, to go to Wegmans and sample 30 shoppers each.  The population of interest for both people can be defined as, “People who shop at the Johnson City, NY Wegmans store”.  Here is what each person did to collect their sample:                    Lexie: She stood outside at the entrance to the store on 3 different days and times and surveyed every 15th person to walk by her.  She surveyed 10 people each time to get her 30.   Jennifer:  She went to Wegmans after her nursing shift first thing Wednesday morning to buy deodorant since she ran out.  When she was in the pharmacy area she surveyed all the people around her and then, to get up to 30 surveys, she went to the health food section and surveyed everyone she was there.     Identify at least 2 specific reasons why Lexie’s approach is more likely to give a representative sample.  Consider sources of bias, or types of shoppers who might be excluded by Jennifer’s approach.…

1. Identify whether the numbers are statistics or parameters.   a. Of all US third grade teachers, 32% say that knowing cursive writing is an essential skill.   b. Of the 500 US third grade teachers polled, 34% say that knowing cursive writing is an essential skill.

In a survey of 3343 adults aged 57 through 85​ years, it was found that 83.3%of them used at least one prescription medication. Complete parts​ (a) through​ (c) below. a. How many of the 3343 subjects used at least one prescription​ medication?