How is the sum expressed in sigma notation? * +++1+3 i-1 it3

Q: Solution: Step 1: State the hypotheses. Step 2:The level of significance and the critical region.…

A: Given : Data  : First we need to calculate the mean and standard deviation for both the samples For…

Q: Erin just bought a bag of gumballs with eight different colors of gumballs. One of the colors is…

A: Let X denotes the number of gumballs that Erin will need to pull out of the bag until she gets her…

Q: Assuming the requirements are met for the penny study, what is the lower bound for a 99% confidence…

A: Given that, The sample proportion of 1 and 2 are,

Q: Assuming the requirements are met for the penny study, what is the margin of error for a 95%…

A: given data  n1 = 116    x1 = 80p^1 = x1n1 = 80116 = 0.6897 n2 = 137    x2 = 91 p^2 = x2n2 = 91137 =…

Q: Which option and why

A:

Q: A combination has 4 characters.  There are 2 letters and 2 numbers.  The numbers must be 0-9.  how…

A: Given : There are combinations of 4 characters. There are 2 letters and 2 numbers.

Q: An element a in a ring R is called nilpotent if a" =0 for some positive integer n. The only…

A:

Q: How would you report on the meaning of these polls to the party membership?

A: Here given A political party received an average of 34% support in recent polls plus or minus 3.4%,…

Q: So which multiple choice is it and what do we put in the blanks?

A:

Q: Professor Tough's final examination has 18 true-false questions followed by 3 multiple-choice…

A:

Q: Why is option II correct

A:

Q: 66,67,34,45,64,67,75,58,54,59,67. Find the mode(s) of the given scores.

A: It is given that the scores of students are66,67,34,45,64,67,75,58,54,59,67

Q: A test consists of two parts. Part 1 consists of 9 questions to be answered true or false. Part 2…

A: Each true and false question can be answered in 2 ways, either true or false. Thus, total number of…

Q: C and D aren't options.

A:

Q: A contingency table has 6 rows and 8 columns What is the value of degrees of freedom

A: No. of rows(r)=6No. of columns(c)=8 We have to find the value of the degree of freedom.

Q: Liza is a basketball coach and must select 5 players out of 12 players to start a game. In how many…

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Q: Which method (substitution or elimination) did they use?

A:

Q: A lady has 4 dresses and she want to bring 2 of them with her on the trip. How many ways to choose 2…

A: The objective of this question is to find out the number of ways the lady can choose 2 dresses out…

Q: A contingency table is having 2 rows and 3 columns. Find the degrees of freedom?

A: Answer: From the given data, For a contingency table, Number of rows (r) = 2 Number of columns (c) =…

Q: A contingency table has 2 rows and 6 columns What is the value of degrees of freedom

A: Answer: From the given data, Number of rows (r) = 2 Number of columns (c) = 6

Q: Joey finds 13 video games that he would like to have. Three of them will run on his operating system…

A: Given: A total of 13 games are there. 10 will run on the operating system and 3 will not.

Q: After a service call by a plumber, the company follows up with a survey to rate the service and…

A: For yes/ no type questions:

Q: it says it could be multiple choice is that the only answer?

A: see below the answer and explanation

Q: The manager of the winning soccer team chooses three of the 20 members to be interviewed by a sports…

A:

Q: You have a pop quiz for which you haven't studied. The multiple choice quiz has 10 questions and 3…

A: Introduction to binomial distribution: Consider a random experiment involving n independent trials,…

Q: you have 5 pair of white socks and 10 pair of black sock in a drawer. you randomly choose two pair.…

A:

Q: You are buying 10 t-shirts and there are 8 different colors to choose from. How many ways can you…

A: Probability A probability provides the possibility of occurring an event. For example, A school team…

Q: There are five nickels and four dimes in your pocket. Three of the nickels and two of the dimes are…

A: Five nickels and four dimes .in which 3 nickels and 2 dimes are canadian.and 2 nickels and 2 dimes…

Q: How do you figure out which team is closer?

A: In triangle LBM∠BLM=52°∠LBM=38°+52°=90°∠BML=38°

Q: How many different baseball bating line ups are possible if the coach wants to put one of the three…

A:

Q: what do part b and part f say? I'm unsure what all the words say.

A: From the given data, it looks like there is a significant main effect of the brand of food.

Q: Assuming the requirements are met for the penny study, what is the upper bound for a 90% confidence…

A: given data  n1 =116     x1 =80p^1 = x1n1 = 80116 =0.6897 n2 = 137   x2 = 91 p^2 = x2n2 = 91137 =…

Q: Assuming the requirements are met for the penny study, which of the following explanations describes…

A: given data :116 women surveyed, 80 said that they were in favor of retaining the penny as a form of…