A developer wants to know if the houses in two different neighborhoods were built at roughly the same time. She takes a random sample of six houses from each neighborhood and finds their ages from local records. The accompanying table shows the data for each sample​ (in years). Assume that the data come from a distribution that is Normally distributed.

Neighborhood 1: 50, 68, 65, 52, 53, 54

Neighborhood 2: 33, 32, 44, 38, 54, 51

​a) Find a 95​% confidence interval for the mean​ difference μ1- μ2​, in ages of houses in the two neighborhoods. (Round to two decimal places as needed)

​b) Is 0 within the confidence​ interval?

(Yes or No)

​c) What does the confidence interval suggest about the null hypothesis that the mean difference is​ 0?

A.Reject H0 since 0 is a plausible value for the true mean difference.

B. Fail to reject H0 since 0 is a plausible value for the true mean difference.

C.Reject H0 since 0 is not a plausible value for the true mean difference.

D.Fail to reject H0 since 0 is not a plausible value for the true mean difference.

1. let's say CFTR (encoding the CFTR Cl- channel) has two alleles: + (which encodes a functional product) and - (which encodes a non-functional product). CFTR is a Cl- transporter expressed in many epithelial cells. LDLR is on chromosome 7. A person with the -/- genotype has Cystic Fibrosis but those with either +/- or +/+ genotypes do not. Which of the following is true?

2.

let's say SLC2A4 (encoding the insulin-dependent glucose transporter GLUT4) has two alleles: + (which encodes a functional product) and - (which encodes a non-functional product). If GLUT4 expression is necessary to not have diabetes, which of the following can we definitely conclude? (More than one answer may seem correct but only one answer logically follows the information)

3.

a pretty good definition of a gene is

4.

In the chart:

What is in column A?

Question: Please I need answers for "REQUIREMENTS" 7 and 8.

Leeds Company has an opportunity to invest in one or two new projects. Project A requires a $350,000 investment for new machinery with a

four-year life and no salvage value. Project B requires a $350,000 investment for new machinery with a three-year life and a $10,000 salvage value. The two projects yield the following predicted annual results. The company uses straight-line depreciation and cash flows occur evenly throughout each year.

Project A

Project B

REQUIREMENTS:

2. Determine each project’s net present value using 8% as the discount rate (this is your interest rate). Assume that cash flows occur at each year-end (round to nearest dollar). Complete with both manual math formulas and using the Excel NPV formula.

7.   Create and apply different Excel scenarios with the Scenario Manager.

8.   Generate a scenario summary report.

General Monsters Corporation has two plants for producing juggernauts, one in Flint and one in Inkster. The Flint plant produces according to fF (x1, x2) = min{x1, 2x2} and the Inkster plant produces according to fI (x1, x2) = min{2x1, x2}, where x1 and x2 are the inputs. 1. On a graph, use blue ink to draw the isoquant for 40 juggernauts at the Flint plant. Use red ink to draw the isoquant for producing 40 juggernauts at the Inkster plant. 2. Suppose that the firm wishes to produce 20 juggernauts at each plant. How much of each input will the firm need to produce 20 juggernauts at the Flint plant? How much of each input will the firm need to produce 20 juggernauts at the Inkster plant? Label with an a on the graph, the point representing the total amount of each of the two inputs that the firm needs to produce a total of 40 juggernauts, 20 at the Flint plant and 20 at the Inkster plant. 3. Label with a b on your graph the point that shows how much of each of the two inputs is needed in total if the firm is to produce 10 juggernauts in the Flint plant and 30 juggernauts in the Inkster plant. Label with a c the point that shows how much of each of the two inputs that the firm needs in total if it is to produce 30 juggernauts in the Flint plant and 10 juggernauts in the Inkster plant. Use a black pen to draw the firm’s isoquant for producing 40 units of output if it can split production in any manner between the two plants. Is the technology available to this firm convex?

obs     gpa     iq      gender  concept
1       7.94    121     2       69
2       8.292   120     2       71
3       4.643   111     2       44
4       7.47    106     2       44
5       8.882   108     1       69
6       7.585   98      2       72
7       7.65    121     2       53
8       2.412   75      2       26
9       6       109     1       47
10      8.833   122     2       64
11      7.47    109     1       46
12      5.528   106     1       62
13      7.167   105     2       53
14      7.571   89      1       68
15      4.7     85      1       62
16      8.167   117     1       50
17      7.822   119     1       46
18      7.598   98      1       64
19      4       100     2       35
20      6.231   104     1       49
21      7.643   129     2       50
22      1.76    98      2       43
24      6.419   109     1       44
26      9.648   128     2       53
27      10.7    126     1       72
28      10.58   123     2       51
29      9.429   120     2       65
30      8       96      2       57
31      9.585   126     2       67
32      9.571   134     1       68
33      8.998   124     1       51
34      8.333   122     1       53
35      8.175   104     2       60
36      8       118     2       46
37      9.333   112     1       62
38      9.5     125     2       67
39      9.167   114     2       61
40      10.14   111     1       65
41      9.999   133     1       55
43      10.76   106     2       95
44      9.763   109     2       72
45      9.41    121     2       65
46      9.167   119     2       84
47      9.348   109     2       43
48      8.167   88      2       55
50      3.647   82      2       41
51      3.408   89      1       56
52      3.936   111     2       30
53      7.167   104     2       71
54      7.647   114     2       59
55      .53     81      2       16
56      6.173   74      2       42
57      7.295   101     2       72
58      7.295   123     1       65
59      8.938   124     1       55
60      7.882   96      1       32
61      8.353   118     2       68
62      5.062   102     2       45
63      8.175   121     2       65
64      8.235   115     2       56
65      7.588   113     2       71
68      7.647   112     2       47
69      5.237   79      1       28
71      7.825   96      2       48
72      7.333   95      1       64
74      9.167   100     2       90
76      7.996   106     2       56
77      8.714   101     1       65
78      7.833   102     1       63
79      4.885   88      2       52
80      7.998   118     1       74
83      3.82    89      2       56
84      5.936   88      1       73
85      9       93      1       65
86      9.5     122     1       88
87      6.057   102     2       52
88      6.057   101     1       61
89      6.938   117     2       39

The data from data216.dat contains information on 78 seventh-grade students. We want to know how well each of IQ score and self-concept score predicts GPA using least-squares regression. We also want to know which of these explanatory variables predicts GPA better. Give numerical measures that answer these questions. (Round your answers to three decimal places.)

(Regressor: IQ) R 2 =

(Regressor: Self-Concept) R 2 =

Which variable is the better predictor?

-IQ

-Self Concept

A group of researchers at UTPA would like to determine reasons for low turnout in the RGV. They suspect that political trust in the RGV will be significantly different from the entire U.S. population (µ = 7.22). A group of 7 RGV residents’ scores are listed below. Compare this group of scores to the population to determine if there is a significant different (α = .05)

Will we need a one- or two-tailed hypothesis test?

State your null hypothesis

State your alternative hypothesis

Provide the SPSS output for your test and identify (circle or highlight) the t-obtained and the p-value

Did you reject or fail to reject the null hypothesis?

What can you conclude?

Calculate the 95 confidence interval for the sample mean

Calculate Cohens D

I am stuck on the following problem please and it has to be in python!

1) Initially, create a list of the following elements and assign the list to a variable "thing".

"Mercy", "NYU", "SUNY", "CUNY"

2) print the list above

3) add your last name to the list

4) print the list

5) add the following elements as a nested list to the list:

"iPhone", "Android"

6) print the list

7) add the following list to the end of the list as elements:

["MIT", "CMU"]

8) print the list

9) add the following nested list to the third position of the list thing:

[30, 40+1]

10) print the list

11) delete "SUNY" from the list. # revised this question on 9/24 8:41pm!

12) print the list

13) add "Mercy" to the second last in the list (so "Mercy" should be in between "MIT" and "CMU"):

14) print the list

15) count "Mercy" in the list and print.

16) print the number of the top-level elements in the list.

17) In Step 10 above, explain why 40+1 is entered 41 to the list.

Challenge) Can we remove an element from a nested list? If yes, explain how in plain text. If not, explain why not

Challenge) Can we count each every element in a list, which may contain nested lists? If yes, explain how in plain text. If not, explain why not

A sample of 8 sweet potato slices were fried at 130 degrees using a vacuum fryer. One characteristic of interest to the researchers was internal oil content (measured in millions of grams). It is known that internal oil content is normally distributed. The average oil content of the sample of 8 sweet potato slices was 180 with sample standard deviation 10. The researchers are interested in estimating the average of the internal oil content measurements for sweet potato chips. We want to know whether the average oil content is different than 176 millions of grams. Carry out a hypotheses test with significance level 5%. State the null and alternative hypotheses, test statistics, p-value, and conclusion.

5). How many electrons have to be added to 1 milligram metal sphere such that another +1C charge located 12 mm above the sphere will be able to hold that in the air?[Assume g=10m/s^2].

6). Two point charges, q₁= +13 nC and q₂= -7 nC, are located on the x-axis at x= 0 and x=9 m. What is the distance of ZERO electric field from the positive charge?

7). In a right angle, AB = 2 m, and angle ACB is 63.43 Degree. A point charge of 2* 23 nC is placed at point A and another point charge -3* 23 nC is placed at point C. Calculate the POTENTIAL at B

8). Two charges, one is at A with - 30.44 nC and other is at B with +9* 30.44 nC are seperated by 1 m. Find the distance AC in cm for which electric POTENTIAL at point C is zero. Point C is located on line AB.

Write a program named Intervals.java that will take two time intervals (a starting and ending time) and compare them. The program first prompts the user for an earlier and later interval. Each interval consists of two numbers in 24-hour format (for example, 1507 for 3:07 p.m.):

Enter earlier start and end time as two 24-hour format times: 0700 1045
Enter later start and end time as two 24-hour format times: 0815 1130

You may presume that the user will enter the intervals with the start time and end time in the correct order.

The program will then calculate how many minutes are in each interval, which one is longer, and whether the intervals overlap (does the later interval start before the first one is finished):

The earlier interval is 225 minutes long.
The later interval is 195 minutes long.
The earlier interval is longer.
These intervals overlap.

Here is output from another run of the program:

Enter earlier start and end time as two 24-hour format times: 1340 1445
Enter later start and end time as two 24-hour format times: 1500 1710
The earlier interval is 65 minutes long.
The later interval is 130 minutes long.
The later interval is longer.
These intervals do not overlap.

If the intervals are of equal length, your output should say they are equally long. If the later interval starts at the same time that the earlier interval ends, they do not overlap.

Plan this program before you start writing it! No single part of this program is tremendously difficult, but there are many parts.

Hint: Convert the times to number of minutes after midnight. This will make your calculations much easier. For example, 0507 is 5 hours and 7 minutes past midnight, or 307 minutes past midnight. You will want to use / and % with 100 to split up the time into the hours and minutes part, but use 60 when calculating total minutes!

Extra challenge: Give the correct answer even if the user enters the beginning and end times for an interval in the wrong order, or if they enter the later interval first and the earlier interval second.