## Statistics And Probability image Transcription Text in General.zx2 Ls_?_?_to (2):)

statistics and Probability
Image transcription text
In general.ZX2 ls_?_?_to (2):)

## critical Values For Quick Reference During This Activity. confidence Levelcritical Value0.90 z∗=1.645 Professional Essay Help

Critical values for quick reference during this activity.
Confidence levelCritical value0.90
z∗=1.645
0.95
z∗=1.960
0.99
z∗=2.576
In a poll of 1000 randomly selected voters in a local election, 913 voters were against fire department bond measures.

What is the 99% confidence interval? [smaller value, larger value]

## suppose You Roll A Pair Of 4 Sided Fair Dice And Sum Compare And Contrast Essay Help

suppose you roll a pair of 4 sided fair dice and sum totals is X assume that the two rolls are independent clearly X is a random variable over the set {2,3,4,5,6,7,8} which value that has the highest probability in all the set? show calculation

## 18 it Is Thought That Prehistoric Indians Did Not Take Their Essay Help Site:edu

Question 18
It is thought that prehistoric Indians did not take their best tools, pottery, and household items when they visited higher elevations for their summer camps. It is hypothesized that archaeological sites tend to lose their cultural identity and specific cultural affiliation as the elevation of the site increases. Let x be the elevation (in thousands of feet) for an archaeological site in the southwestern United States. Let y be the percentage of unidentified artifacts (no specific cultural affiliation) at a given elevation. Suppose that the following data were obtained for a collection of archaeological sites in New Mexico:
x
5.25
5.75
6.50
7.25
8.00
y
26
17
52
80
64

Calculate the sample correlation coefficient r. Round your answer to three decimal places.
-0.933

0.850

0.067

0.150

## 21 it Is Thought That Prehistoric Indians Did Not Take Their Essay Help Us

Question 21
It is thought that prehistoric Indians did not take their best tools, pottery, and household items when they visited higher elevations for their summer camps. It is hypothesized that archaeological sites tend to lose their cultural identity and specific cultural affiliation as the elevation of the site increases. Let x be the elevation (in thousands of feet) for an archaeological site in the southwestern United States. Let y be the percentage of unidentified artifacts (no specific cultural affiliation) at a given elevation. Suppose that the following data were obtained for a collection of archaeological sites in New Mexico:
x
5.25
6.00
6.50
7.25
7.75
y
10
24
60
73
79

At an archaeological site with elevation 6.75 (thousand feet), what does the least-squares equation forecast for the percentage of culturally unidentified artifacts? Round your answer to the nearest tenth of a percent.
67.2%

47.7%

30.0%

55.1%

## 22 it Is Thought That Prehistoric Indians Did Not Take Their Essay Help App

Question 22
It is thought that prehistoric Indians did not take their best tools, pottery, and household items when they visited higher elevations for their summer camps. It is hypothesized that archaeological sites tend to lose their cultural identity and specific cultural affiliation as the elevation of the site increases. Let x be the elevation (in thousands of feet) for an archaeological site in the southwestern United States. Let y be the percentage of unidentified artifacts (no specific cultural affiliation) at a given elevation. Suppose that the following data were obtained for a collection of archaeological sites in New Mexico:
x
5.75
6.75
7.75
8.50
9.25
y
27
16
46
62
95

What percentage of the variation in y cannot be explained by the corresponding variation in x and the least-squares line? Round your answer to the nearest tenth of a percent.
3.4%

18.4%

81.6%

9.7%

## image Transcription Text you Measure 47 Watermelons Weights, And Find College Application Essay Help Online

Image transcription text
You measure 47 watermelons weights, and find they have a mean weight of 48 ounces. Assume the population standard deviation is 10.1 ounces. Based on this, what is the maximal margin of error assoc with a 95% confidence interval for the true population mean watermelon weight. Give your answer as a decimal, to two places ounces Submit Question Question 3 0/1 pt 9 6 O Det You measure 44 randomly selected textbooks’ weights, and find they have a mean weight of 70 ounces Assume the population standard deviation is 6.8 ounces. Based on this, construct a 90% confidence interva for the true population mean textbook weight. Give your answers as decimals, to two places Submit Question

## image Transcription Text 642 105#f/skip/4 Su Homework 08 (linear Regression) College Essay Help Los Angeles

Image transcription text
642 105#F/skip/4 Su Homework 08 (Linear Regression) Score: 0/4 0/4 answered Question 4 Many people believe that gender, weight, drinking habits, and many other factors are much more important in predicting blood alcohol content (BAC) than simply considering the number of drinks a person consumed. Here we examine data from 16 student volunteers at Ohio State University who each drank a randomly assigned number of cans of beer. These students were evenly divided between men and women, and they differed in weight and drinking habits. Find the 95% Confidence Interval for the coefficient. (a) The degrees of freedom is (b) so for a 95% confidence interval, the t value we want is (c) from the table we see the SE is (d) So the 95% confidence interval (to 4 decimal places) is Estimate Std. Error t value p-value (Intercept) -0.0127 0.0126 -1 0.332 beers 0.0178 0.0024 7.48 0 Submit Question