Here are summary statistics for randomly selected weights of newborn​ girls: nequals 229​, x overbar equals31.3 ​hg, sequels 7.1 hg. Construct a confidence interval estimate of the mean. Use a 90 ​% confidence level. Are these results very different from the confidence interval 30.3 hg less than mules than32.5 hg with only 20 sample​ values, x overbar equals31.4 ​hg, and sequels 2.8 ​hg? What is the confidence interval for the population mean mu ​? Are the results between the two confidence intervals very​ different?

Here are summary statistics for randomly selected weights of newborn​ girls: n=181, x overbar=28.7 ​hg, s=7.1 hg. Construct a confidence interval estimate of the mean. Use a 90%

confidence level. Are these results very different from the confidence interval 27.1hg<μ <29.5 hg with only 17 sample​ values,

x overbar=28.3 ​hg, and =2.8 ​hg?

What is the confidence interval for the population mean μ​?

__ hg <μ<___ hg ​(Round to one decimal place as​ needed.)

To get full credit, you must write at least 2 paragraphs for each question- or 4 paragraphs total. There aren't right or wrong answers here. To get full credit, integrate material that we have talked about in class or that you read for class into your own personal reflections.

1. Do you think that most college students understand what consent looks like/means?

2. Do you believe that pornography negatively impacts women and girls? Why or why not?

Here are summary statistics for randomly selected weights of newborn​ girls: nequals192​, x overbarequals27.8 ​hg, sequals7.8 hg. Construct a confidence interval estimate of the mean. Use a 90​% confidence level. Are these results very different from the confidence interval 26.5 hgless thanmuless than29.9 hg with only 14 sample​ values, x overbarequals28.2 ​hg, and sequals3.5 ​hg? What is the confidence interval for the population mean mu​? nothing hgless thanmuless than nothing hg ​(Round to one decimal place as​ needed.)

Here are summary statistics for randomly selected weights of newborn​ girls: nequals220​, x overbarequals30.3 ​hg, sequals6.3 hg. Construct a confidence interval estimate of the mean. Use a 99​% confidence level. Are these results very different from the confidence interval 29.0 hgless thanmuless than31.8 hg with only 18 sample​ values, x overbarequals30.4 ​hg, and sequals2.1 ​hg? What is the confidence interval for the population mean mu​? nothing hgless thanmuless than nothing hg ​(Round to one decimal place as​ needed.)

Q1# Consider the following string:
String hello = "Hi girls! hope your assignment1 is very easy.";
a. What is the value displayed by the expression hello.length()?
b. What is the value returned by the method call hello.charAt(12)?
c. Write an expression that refers to the letter p in the string referred to by hello

Q2# Modify the program to use a "while-do" loop instead of "for" loop.

int sum = 0;
int number = lowerbound; // declare and init loop index variable
while (number <= upperbound) { // test
sum += number;
++number; // update
}

The table below lists a random sample of 53 speeding tickets on I-25 in Colorado.

(Note: PLease enter your answer as a decimal number , NO FRACTIONS)
a) If a random ticket was selected, what would be the probability that the driver was female?


b) Given that a particular ticket had a male offender, what is the probability that they were more than 20 mph over the limit?
c) Given that a particular ticket was 10-20 mph over the limit, what is the probability that the driver was female?
d) If a random ticket was selected, what would be the probability that the driver was a male?
e) If a random ticket was selected, what would be the probability that the driver is a female and driving 10-20 mph over the limit?
f) If a random ticket was selected, what would be the probability that the driver is a female or driving 0-10 mph over the limit?

B. The Wilson family was one of the first to come to the U.S. They had 8 children. Assuming that the probability of a child being a girl is .5, find the probability that the Wilson family had:

at least 7 girls?

at most 2 girls?

Question 12.20 – Use these data - incidents of reports of underage drinking – to perform the following: “Dry” campus, state school: 47, 52, 27, 50 “Dry” campus, private school: 25, 33, 31 “Wet” campus, state school: 77, 61, 55, 48 “Wet” campus, private school: 52, 68, 60

a.) Calculate the cell and marginal means. Notice the unequal Ns b.) Draw a bar graph. c.) Calculate the five different degrees of freedom, and indicate the critical F value based on each set of degrees of freedom, assuming the p level is 0.05. d.) Calculate the total sum of squares. e.) Calculate the between-groups sum of squares of the independent variable campus. f.) Calculate the between-groups sum of squares for the independent variable school. g.) Calculate the within-groups sum of squares. h.) Calculate the sum of squares for the interaction. i.) Create a source table.

3. In one of the faculty; students come from three different high school types. They are using
three different brand mobile phone. The dean claim that there is a relationship between mobile
phone brand and high school type. Test this claim with 0.05 significance level by using the
correct test and showing each calculations step in Ms Word file. You have to use the same
steps which we used in the lecture. You can find the steps from lecture slides or recorded
video. Also, you have to take in a consider the HOMEWORK - PROJECTPERFORMANCE
EVALUATION FORM which is above. (30p) SEND IT IN MS
WORD FORMAT NOT SCREEN SHOT.
Mobile phone brand A Mobile Phone Brand B Mobile phone brand c
High School A 28 20 18
High School B 22 24 28
High School C 44 30 32

Scenario: An academic organisation is considering the purchase and operation of its own fleet of buses to transport its students to and from school at the end of this year. The bursar at the school has confirmed that, if this project can be implemented, the school will be able to cancel its current contract with the local bus operator, and as a result, the school will make cash savings of N$45 600 each year from 2011 onwards, after deducting operating costs.
The buses will cost the school N$255 000 and will have a scrap value of N$75 000 when they are sold after five years. The school’s cost of capital is 10%, and the maximum required payback is 3.5 years.

Questions:
1. Calculate the project’s payback period.
2. Calculate the project’s Net Present Value (NPV).
3. Calculate the project’s internal rate of return (IRR).
4. Determine with reasons which project (s) will finally be recommended.