A journal editor questioned the results of a study that claimed high doses of vitamin C would aid weight loss. The editor claimed that diet and exercise could affect weight loss, as well. He was questioning the of the study. O applicability external validity internal consistency internal validity This exists in a research study when the independent variable causes the result we see in the dependent variable. O random assignment internal validity experiment external validity A type of sample chosen from a population that has been subdivided based upon predetermined characteristics such as sex, race, and socioeconomic status. O systematic O stratified O equitable O electorate

Q: there are 8 girls and 5 boys on the math team . which ratio correctly describes the relationship…

A: There are 8 girls and 5 boys on the math team.  Ratio indicates how many times one number contains…

Q: The histogram to the right represents the weights (in pounds) of members of a certain high-school…

A: To determine if the calculation is correct, let's re-examine the histogram provided in the image.…

Q: 4. Find P7 A. Z = -3.21 B. z = -1.48 C. z = 1.48 D. z = 0.74

A: we had given data  standard normal distribution z~N(0,1) we have to fond 7h percentile

Q: The population in Terre Haute Indiana in 2012 was 61,112 in 2019 the population was 60,622. Clinton…

A: Relative change is the difference over two periods in time. Relative Change % = ((B - A ) / A) x 100…

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: Keiko is recording the percentages she earned on each 81, 92, 78, 93, 81, 76, 90 Find the range of…

A: Range= high value - low value.

Q: 4. Find P7 A. z = -3.21 B. z = -1.48 C. z = 1.48 D. z = 0.74

A: Z-score percentile  * For normal distribution Excel command to get z-score from p-value…

Q: 2 200 2 O - 50 2 .……....... m

A: To factorize 200

Q: Approximately how many of the families in the survey have less than four children? O 130 O 140 260…

A: Given graph is

Q: Vhat is the value of n that 45.47 = 415

A: the question is taken from the alzebra in which we have to find the value of the n so we write the…

Q: As part of their Native American basket weaving, Lia's class is making wicker baskets. Lia starts…

A: To find: The length of the first piece person L cuts from the strip of wicker. Given: The total…

Q: James surveyed some of his dassmates about what vegetable they like best. Complete the table.…

A: Simple addition problem....

Q: 2 2.4 3. Explain in two different ways why 3 3.4 - =

A: Introduction: Definition 1: A fraction represents a numerical value, which defines the parts of a…

Q: 2. The quotient of a number x and negative four-ninths is two and seven-tenths. What is the value of…

A: INTRODUCTION To simplify a rational expression, you need to factor the numerator and denominator,…

Q: The table below shows the sales (in packets) of a commodity at a supermarket over a three-year…

A: There are several ways of measurement of trend of a time series data. Method of Moving Average:…

Q: E F 15 3 R 15 Write your answers as decimals or whole numbers. EF = RS = 2.

A:

Q: The ratio of 6th graders to 8th graders in a chess club was 5:4 there were 32 8th graders how many…

A: Given that  The ratio of 6th graders to 8th graders in a chess club was 5:4  Find  6th graders were…

Q: Find B-A. 4 B = 7 3 A = 88 1 -1 B-A=

A:

Q: The weight of a basket containing 4 watermelons is 30kg. The weight of the basket is 0.4kg. What is…

A:

Q: which values are less than -3 1. o 2. -2 3. 2 4. -10 5. -4

A:

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.