What is the average miles per gallon (mpg) for all new cars? Using Consumer Reports, a random sample of 35 new cars gave an average of 21.1 mpg.  Answers:  miles  cars  gallons number of new cars surveyed  miles per gallon

Q: In a study, the data you collect is wage per hour. What is the level of measurement?

A: We know that Nominal level of measurement represents categories. Ordinal level of measurement…

Q: Whose paint has a greater ratio of red to yellow?

A: comparing ratios red to yellow

Q: Answer the following questions. About 68 percent of the 1. batteries failed between what two values?…

A: Empirical rule (68 – 95 – 99.7 rule): For a bell shaped distribution (normal) the empirical rule…

Q: To help consumers assess the risks they are taking, the Food and Drug Administration (FDA) publishes…

A: 16 State the hypotheses. That is, there is no evidence that the mean nicotine content exceeds 27.9…

Q: Out of 1000 residents of Eagle County surveyed, 590 of them feel that their children receive a good…

A: There are two independent samples which are Eagle County and Beaver County. We have to construct 95%…

Q: What is the main statistical value computed to answer your statistical Iresearch question?* F= 4.…

A: ANOVA is the method that used to interpret whether there is any mean significance difference between…

Q: What is the percent uncertainty in the measurement 5.38 0.21 m ? Express your answer using two…

A: The formula for calculating percent uncertainty is percent uncertainty =

Q: A fitness instructor measured the heart rates of the participants in a yoga class at the summarized…

A: A histogram is a graphical representation of the distribution of numerical data. It usually…

Q: Which values have exactly three significant figures? Select two options. O 0.0230 grams O 0.035…

A:

Q: At a birthday party, the menu consisted of burgers, chicken, salad and hotdogs. Approximately 300…

A: Attack rate: The ratio of a population at risk who develops the illness during a defined period of…

Q: What is mCD?

A: Consider the given figure.

Q: Given below is the pictogram of rainfall in Kochi in 2015. Find the percentage of days when the…

A: Given:

Q: A student wanted to study how many matches came in a box. They recorded the following data. How many…

A:

Q: What percentage of the variation in  can be explained by the corresponding variations in  and  taken…

A: X1 is the dependent variable  X2 and X3 are the independent variables.

Q: d. What percentage of students scored at least 66? e. How many students scored more than 98 on the…

A:

Q: What proportion of smokers in the sample died from heat disease? Round your answer to four decimal…

A: Given: Health data given for different categories. To calculate: Proportion of people who died from…

Q: An inexperienced statistical clerk submitted the following statistics to his manager on the average…

A: We know working  time is inversely  proportional to number of workers. Amount of work is…

Q: A researcher reports an F-ratio with df = 3, 36 from an independent-measures research study. How…

A: A researcher reports an F-ratio with df = 3, 36 from an independent-measures research study. It is…

Q: What is the measure of PD?

A: From the figure  FD is diameter , Therefore, ∠FED=90∠FEP+∠PED=9035+∠PED=90∠PED=90-35∠PED=55

Q: A man who state that he manufactured lid for the glass jars was asked what size lids he…

A: It is mentioned that a man manufactured lid for the glass jars. His response for the size lids was…

Q: What was the population in 1925?

A: We know with a very good accuracy that the current world population is in the range of 7,325,996,709…

Q: Es. What is the lowest I.Q. score acceptable for the advanced training ?

A: Let X denote the IQ of army volunteers. Given that X follows N(mean = 110, SD = 10), then Z = (X -…

Q: Use the following area diagram: Y N N N Y N Y Y Y Y If 120 students are surveyed concerning their…

A: Given: Area diagram

Q: a sample of ore is found to be 0.0012% diamond and 0.033% copper. What is the percentage of matter…

A: Given:- A sample of ore is found to be 0.0012% diamond and 0.033% copper To find:- The percentage of…

Q: e. The average number of calls per minute dur WAT lla IL

A: Given Data Population Mean,μ = 24.0 Population Standard Deviation,σ = 3.0

Q: given: mean= 68.73 s.d. 9.03 find what percentage of the scores fall above 50?

A: Given μ=68.73 and σ=9.03 consider,…

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

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: What percentage ) What percentage of the people do not smoke? of the people do not exercise…

A: The data is given by   Smoke Do not smoke Total Exercise regularly 4 21 25 Do not exercise…

Q: Fill in the anova table   Source   SS   df   MS       F effect    500   2     ?          ? error…

A: Let K be the number of elements in effect N be the total number  Farmula used F=MSeffect/MSerror

Q: 7. What proportion of time was spent eating and drinking?

A: Given Data is : Sleeping = 8.6 At school = 6.3 Socializing, Relaxing = 3.6 Other = 1.6 Travelling /…

Q: What is the measure of YZ?

A:

Q: eviclara rs has declined in 1%, and the use of 7% to 20.4%. A ity indicated that 54 urvey. At the a…

A:

Q: Determine whether the following variables are qualitative or quantative, and explain why.  The…

A: Quantitative data are values or counts quantities, and are represented as numbers. Qualitative data…

Q: C)ln how many observation periods were for or more customers observed exceeding the item limit? P)…

A: The frequency distribution of the number of customers exceeding the item limit is given.

Q: 3. What is the weight of an SUV with a fuel efficiency of 15 mpg?

A: a) from graph,  Fuel efficiency of 15 mpg corresponds to SUV Weight of 4000 pounds    b) from the…

Q: How would you interpret the following statistical findings? t = 2.620 df = 24, p<.01

A:

Q: at is Mrs. Gonzales's cholesterol level?

A: Let , X→N(μ=240 mg/dL , σ=20 mg/dL) Our aim is to find Mrs. Gonzales's cholesterol level.

Q: A coffee owner wanted to determine how much caffeine was in each cup of coffee being served. A…

A: Given information: The data represents the amount of caffeine present in each cup of coffee that is…

Q: What is the median for the following Pounds of Honey Collected Per Hive 50 51 52 70 71 2 3 14 i5 16…

A: Given,

Q: The formula for population mean is: ?=∑??μ=∑XN Solve it for N.

A: Since we know that population mean is given by μ=∑X/N

Q: af mPR 45. what is the measure of PTR? MRTS?

A: Given:       m∠PR = 45°  According to intersecting cords or secants theorem       m∠PTR  = (  arcPR…

Q: How many participants had a heart rate between 130 and 150 bpm?

A: Here use given histogram  From that note the frequency for required classes

Q: In California, we need more rain to sustain the health of our natural environment, argriculture, and…

A: Inches of Rain(x) frequency(f) f*x 1 4 4 2 3 6 3 0 0 4 7 28…

Q: What percentage of Fresh fruits are Oranges? Fresh Frozen Total Apples Oranges Strawberries 40 30 70…

A:

Q: A diastolic blood pressure greater than 90 is classified as hypertension (high blood pressure). What…

A:

Q: A male apparel company surveyed men t results are summarized below:

A: Given,  the table Years    Percentage Less than 1 year         16% 1 - 4 years         62%…

Q: Based on the histogram that shows the heights of hibiscus plants in inches i. How many plants have…

A:

Q: At a local dunkin donuts a survery showed that out of 1060 customers eating lunch 318 ordered coffee…

A: Probability: The ratio of the number of favorable outcomes to certain event and total number of…

Q: Using the diagram above, what is the measure of KPN?

A: We have to use the relationship of angles and geometry.