On March 28 at 1:30 pm, the actual average number of cases in a U.S. state...
On March 28 at 1:30 pm, the actual average number of cases in a U.S. state was 2102. Does this value fall in the interval you found in question 1. Discuss why or why not, and the reason you found the result you did.
Note: Here is Question 1 (On March 28 at 1:30 pm, I randomly selected 10 states and found the number of coronavirus cases in each of them. This gave me an average of 939 cases with a standard deviation of 1543. Assume the number of cases in each state is normally distributed. Create a 90% confidence interval for the actual number of coronavirus cases in each state.)
Homework Answers
Add Answer to:
On March 28 at 1:30 pm, the actual average number of cases in a
U.S. state...
Question 2. (30 Points): A random sampe of 30 households was selected as part of a...
Question 2. (30 Points): A random sampe of 30 households was selected as part of a study on electricity usage, and the number of kilowatt-hours (kWh) was recorded for each household in the sample for the March quarter of 2006. The average usage was found to be 375 kWh. In a very large study in the March quarter of the previous year it was found that the standard deviation of the usage was 81 kWh. (a) 10 points Assuming the...
The histogram displays the number of 2007 births among U.S. women ages 1010 to 5050. Each...
The histogram displays the number of 2007 births among U.S.
women ages 1010 to 5050. Each bin represents an interval of two
years, and the height of each bin represents the frequency with
which the data fall within that interval.
Use the provided histogram to answer questions about the number
of births for each age group.
1) How many births occurred among women over the age of
4040?
number of births:
___________________________
2) What percentage of births occurred among women...
The average student loan debt of a U.S. college student at the end of 4 years...
The average student loan debt of a U.S. college student at the end of 4 years of college is estimated to be about $22,800. You take a random sample of 40 college students in the state of Vermont. The debt for these students is found in the table below. We want to construct a 95% confidence interval for the mean debt for all Vermont college students. You will need software to answer these questions. You should be able to copy...
Student Debt – Vermont (Raw Data, Software Required): The average student loan debt of a U.S....
Student Debt – Vermont (Raw Data, Software Required): The average student loan debt of a U.S. college student at the end of 4 years of college is estimated to be about $22,800. You take a random sample of 40 college students in the state of Vermont. The debt for these students is found in the table below. We want to construct a 90% confidence interval for the mean debt for all Vermont college students. You will need software to answer...
NATIONAL CENTER FOR CASE STUDY TEACHING IN SCIENCE Part 1 - Washington State To understand the...
NATIONAL CENTER FOR CASE STUDY TEACHING IN SCIENCE Part 1 - Washington State To understand the need for social distancing let's begin by Table 1. Positive/confirmed cases of COVID-19 as of March looking at the first reported case of COVID-19 in the United 26, 2020. (Case data from Washington State Department States and some of the demographics of the area. The first of Health, population data from Washington State Office of Financial Management, http://www.ofm.wa.gov.) reported case of COVID-19 came on...
Table 2 shows the frequency distribution of male cases and controls by average number of cigarettes...
Table 2 shows the frequency distribution of male cases and controls by average number of cigarettes smoked per day. Table 2. Most recent amount of cigarettes smoked daily before onset of the present illness, lung cancer cases and matched controls with other diseases, Great Britain, 1948-1952. Daily number of cigarettes # Cases # Controls Odds Ratio 0 8 68 referent 1-14 622 785 15-24 498 482 25+ 402 195 All smokers 1,522 1,462 Total 1,530 1,530 ***Question 11: Compute the...
1. A random sample of 30 boxes of bolts was purchased at a local hardware store...
1. A random sample of 30 boxes of bolts was purchased at a local hardware store and the average number of bolts per box was 52. It is known that the population standard deviation of bolts per box is 6 bolts. a Is this a z or t-distribution? Why? b. Find and interpret a 95% confidence interval to estimate the average number of bolts per box for all boxes in the population. Round to 3 decimal places. C What would...
A random sample of 100 households was selected as part of a study on electricity usage,...
A random sample of 100 households was selected as part of a study on electricity usage, and the number of kilowatt-hours (kWh) was recorded for each household in the sample for the March quarter of 2016. The average usage was found to be 660 kWh and it was found that the standard deviation of the usage was 80 kWh. Construct a 90% confidence interval for the mean usage in the March quarter of 2016 Does the data provide significant evidence,...
You are curious about the average number of yards Matthew Stafford throws for each game for...
You are curious about the average number of yards Matthew Stafford throws for each game for the Detroit Lions. You randomly select 23 games and see that the average yards per game is 344.5 with a standard deviation of 27.8 yards. You want to create a 95% confidence interval for the true average number of yards per game he throws. What is the margin of error for this estimate? Question 1 options: 1) 1.5833 2) 5.7967 3) 12.0216 4) 9.9538...
1. In 1991 the average interest rate charged by U.S. credit card issuers was 18.8 percent....
1. In 1991 the average interest rate charged by U.S. credit card issuers was 18.8 percent. A financial officer wishes to study whether the increased competition in the credit card business has reduced interest rates. To do this, the officer will test a hypothesis about the current mean interest rate, , charged by all U.S. credit card issuers. To perform the hypothesis, the officer randomly selects n = 15 credit cards and obtains the sample mean interest rate 16.8 percent...
Question 2. (30 Points): A random sampe of 30 households was selected as part of a study on electricity usage, and the number of kilowatt-hours (kWh) was recorded for each household in the sample for the March quarter of 2006. The average usage was found to be 375 kWh. In a very large study in the March quarter of the previous year it was found that the standard deviation of the usage was 81 kWh. (a) 10 points Assuming the...
The histogram displays the number of 2007 births among U.S.
women ages 1010 to 5050. Each bin represents an interval of two
years, and the height of each bin represents the frequency with
which the data fall within that interval.
Use the provided histogram to answer questions about the number
of births for each age group.
1) How many births occurred among women over the age of
4040?
number of births:
___________________________
2) What percentage of births occurred among women...
NATIONAL CENTER FOR CASE STUDY TEACHING IN SCIENCE Part 1 - Washington State To understand the need for social distancing let's begin by Table 1. Positive/confirmed cases of COVID-19 as of March looking at the first reported case of COVID-19 in the United 26, 2020. (Case data from Washington State Department States and some of the demographics of the area. The first of Health, population data from Washington State Office of Financial Management, http://www.ofm.wa.gov.) reported case of COVID-19 came on...
1. A random sample of 30 boxes of bolts was purchased at a local hardware store and the average number of bolts per box was 52. It is known that the population standard deviation of bolts per box is 6 bolts. a Is this a z or t-distribution? Why? b. Find and interpret a 95% confidence interval to estimate the average number of bolts per box for all boxes in the population. Round to 3 decimal places. C What would...
1. In 1991 the average interest rate charged by U.S. credit card issuers was 18.8 percent. A financial officer wishes to study whether the increased competition in the credit card business has reduced interest rates. To do this, the officer will test a hypothesis about the current mean interest rate, , charged by all U.S. credit card issuers. To perform the hypothesis, the officer randomly selects n = 15 credit cards and obtains the sample mean interest rate 16.8 percent...
Most questions answered within 3 hours.
-
please don't use the p value method instead use the "5 steps of
hypothesis testing." Or...
asked 14 minutes ago -
It is said that Galileo discovered a basic principle of the
pendulum—that the period is independent...
asked 19 minutes ago -
The Cost of Equity and
Flotation Costs
Messman Manufacturing
will issue common stock to the public...
asked 26 minutes ago -
a) summarize the challenges facing New Britain today
b) identify some of its strengths
c) suggest...
asked 28 minutes ago -
**86 at 40 not 88. please show how got Tr in calculations thank
you
2) The...
asked 29 minutes ago -
McGlaun Company pays its employees every two weeks. The firm
last paid its employees on September...
asked 42 minutes ago -
You have been gifted a Mogwai as a pet and decide to do a little
online...
asked 47 minutes ago -
given the standard of 200 mg/dl and the absorbance of that
standard is 0.640. What is...
asked 50 minutes ago -
Exercise 8-51 Algo
An accounting professor is notorious for being stingy in giving
out good letter...
asked 58 minutes ago -
month
total distribution cost
level of activity (unit produced)
july
230.000
3500
august
250.000
3750
september...
asked 59 minutes ago -
A smoke detector system uses two devices, A and B. If smoke is
present, the probability...
asked 1 hour ago -
Your division head has assigned another important project to you
and your team. This project is...
asked 1 hour ago