In each shipment there is an average of 2%% of defective bolts. How many bolts can be expected to be defective in a shipment of 360 dozen? 3. 4. What is the percentage of defective batteries if 15 are defective in a batch of 12 000?

Q: Use the data in the table below to complete the exercise. Round off your answers to a tenth of a…

A:

Q: A survey of 62 men found that 12 have a social media account. Another survey of 57 women found that…

A: Men are taken as group 1. Women are taken as group 2.   Given: n1=62x1=12n2=57x2=40α=0.07

Q: The following table shows the number of sweatshirts and T-shirts sold at a shopping mall on a…

A:

Q: Suppose the correlation between high school GPA and university GPA is r = +0.80. Which proportion…

A: The value of r is 0.80.

Q: Of 60 patients treated with a certain medication, 24 showed no improvement. What percent of patients…

A: Total patient=60 Patient who showed no improvement=24 To calculate: what percent of patients…

Q: Samir's Tea Shop has caffeinated tea and decaffeinated tea. The tea shop served 36 caffeinated teas…

A: Given : The tea shop served 36 caffeinated teas and 54 decaffeinated teas.

Q: Researchers asked 200 families whether or not they were homeowners and how many cars they had. Their…

A: We can answer the question from the table of data as below.

Q: 5. What percent of the sophomores watch TV for at least 15 minutes per night?

A: Following statistics is given for TV time   Minimum = 0 minutes Q1 = 15 minutes Q2 = 60 minutes Q3 =…

Q: Two factory plants are making TV panels. Yesterday, Plant A produced 4000 panels. Ten percent…

A: Given that Plant A produced 4000 panels and defective is 10% Defectives from plant B is 3%,  overall…

Q: (d) What percentage of the data is between 7.3 kg and 11.7 kg? (w) What percentage of the data is…

A: As you want we find only d and w From given data: Mean μ= 9.5 kg, Standard Deviation σ= 1.1 kg.

Q: A telemarketer calls people and tries to sell them a subscription to a daily newspaper. On 19% of…

A: Given  A telemarketer calls people and tries to sell them a subscription to a daily newspaper On 19%…

Q: On a hockey team, there are 14 players. The captain of the team scored on the team, and less than…

A: Given : There are 14 players Captain of the team scored 35 goals last year, which is more than 10…

Q: 1) what proportion of students scored above student 33 on homework 3? 2) what proportion of students…

A: Given:   Student ID HW 1 HW 2 HW 3 1 98 93 99 2 81 80 64 3 66 91 75.5 4 84 94 80 5 65…

Q: 7.) How much does the Over the Rainbow Bakery sell 18 cupcakes for? 8.) What is the proportion of…

A: Ingredients For 4 dozen for 225 cupcakes cake ingredients     Shifted flour 6…

Q: origin, as seen in the table. What percent of the foreign cars were owned by students? A. 20.1% B.…

A: Given  Total (N)  = 368  Total number of students (n) = 211

Q: Keiko asked 15 students how many courses they have taken so far at her college. Here is the list of…

A:

Q: In a survey, editors of a magazine asked 250 people whether or not they smoke and whether or not…

A: The answer is explained below,

Q: 8) What is the percentage of players whose height is less than 68 inches? ( ns 9) What is the…

A: Here Given the Normal curve of heights of BasketBall players with  Mean=μ=70 Inches Sd=σ=2 Inches

Q: Risa is studying dating behavior in college students. She asks students as her school how many…

A: Risa is studying dating behavior in college students. She asks students as her school how many…

Q: The table summarizes the blood group and Rh type for 100 people. a. How many of the subjects were…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: 40% of all people have cooties. 30% of all people play pattiecake and have cooties. What percent of…

A: Conditional probability is the chance of occurrence of an event given that another event has already…

Q: Two factory plants are making TV panels. Yesterday, Plant A produced 10,000 panels. Ten percent of…

A:

Q: A proportion .40 of the tagged birds were recovered. 150 were tagged in all. How many were…

A:

Q: Two factory plants are making TV panels. Yesterday, Plant A produced 15,000 panels. Three percent of…

A: The given data is: Plant A produced 15,000 panels and 3% are defective  Let Plant B produce x panels…

Q: A researcher is interested in maximum-security inmates. She groups inmates by the type of crime…

A: Here, the stratified random sampling method was used. Because the whole population was divided into…

Q: (a) Construct a table showing the macrostates and all of the individual microstates for tossing 6…

A: (a) A table showing the macrostates and all of the individual microstates for tossing 6 coins. 6…

Q: At a popular vacation spot in Arizona, the Arizona Tourism Board took a survey of 100 people to…

A: Complete the two way table and Find P ( who are from Arizona or who used a car ) = ? %

Q: In a school band of 24 students, 9 students play brass instruments. What percent of the members pla…

A:

Q: A parts store sells both new and used parts. Sixty percent of the parts in stock are used. Sixty-one…

A: Let,P(u)= percentage of used stockP(d)=percentage of defective stock.P(u U d) = percentage of used…

Q: How many people do we need to sample? We would like to be within 3 percent of the actual answer and…

A:

Q: Assume that 30% of city employees in Carson City ride the bus to work. Answer the following…

A:

Q: what percentage of the men worked?

A: men women total work 15 23 80 not work 23 28 51 total 38 93 131 what percentage of the…

Q: There are 12 boys in a class of 30 students. What percentage of the class is boys?

A:

Q: Twelve percent of a group of 900 motors are found to be overloaded. many are not overloaded? 792 110…

A:

Q: What percentage of the blocks are red?

A:

Q: A recent poll of 700 people who work indoors found that 280 smoke. If the researchers want to be 98%…

A:

Q: Given a bag with 13 red marbles, and 42 blue marbles, what is the probability of pulling two…

A: There are 13 red marbles and 42 blue marbles.

Q: What is the 87.7 percentile of X~N(12,3)

A: Answer: Given that, X~N(12,3)

Q: Researchers asked 250 families whether or not they were homeowners and how many cars they had. Their…

A: Number of families having two or more cars       = 95 + 85      = 180 So percentage of families…

Q: Two factory plants are making TV panels. Yesterday, Plant A produced 8000 panels. Ten percent of the…

A:

Q: What percent of students preferred iced tea?

A: Total number of students = (840+390+830+510+430) = 3000 Number of students who preferred iced tea =…

Q: Two factory plants are making tv panels. Yesterday, plant A produced 8000 panels. Seven percent of…

A: It is given that plant A produced 8000 panels yesterday.The total production of panels will be 8000…

Q: In a classroom, 12 students are wearing glasses, while six or not. What percent of the students are…

A: Given data: Number of student with glasses is p=12. Number of student without glasses is q=6.

Q: The US population is 13% African American.  If you were to take a SRS of 500 Americans, below what…

A: From the given data The US population is 13% African American

Q: answer a A. the national percentage of automobile accident fatalities which are alcohol related is…

A:

Q: The median salary of the 1,073 teachers in a large public school district is $38,850 If the 65th…

A: Given, The median salary of the 1,073 teachers in a large public school district is $38,850. If…

Q: Enter the exact answers. (a) What proportion of all cases had Outcome A? i (b) What proportion of…

A:

Q: A local school reports that the average GPA is 2.66 (σ =0.40). What is the effect size if the sample…

A: Given information- Population mean, µ = 2.66 Population standard deviation, σ = 0.40 Sample mean of…

Q: C1. A computer spam filter is 98% effective at sending spam emails to my junk folder, but will also…

A: Solution

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.