Question: --In a sample of n = 12, the sample mean is50 and the sample standard deviation = 3. What is the 95% confidence interval? Use

--In a sample of n = 12, the sample mean is50 and the sample
standard deviation = 3. What is the 95% confidence interval?

Use T table.

--In a sample of n= 16, what is the table value for 90%

confidence interval. Use T table.

-- In a sample where p is .30, and the standard error of percentage is

plus and minus .04What is the 93.86% confidence interval ( Use Z table)?

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

Q:

The following information is for Punta Company for July: Factory overhead costs were applied to jobs at the predetermined rate of $42.50 per labor hour. Job S incurred 6,175 labor hours; Job T used...

Q:

summarizes the following information in a paragraph. N = 1461, Mean = 13.80, Standard Deviation = 2.94, 95% Confidence Interval = 13.80 0.15 The total number of valid responses (N) is given as 1461....

Q:

Problem 2: Annual Salary for College Graduates (there is no data file for this problem) A recent study was conducted to investigate if starting annual salaries differ for otherwise comparable...

Q:

Hello I need help with the following problem The speed with which consumers decide to purchase a product was investigated by a group of researchers. The researchers hypothesized that consumers with...

Q:

In a test of the hypothesis Ho: N= 50 versus Ha: 50, a sample of N= 50 observations possessed mean (x bar) = 50.7 and standard deviation s= 4.1. The P value is: P = __ (rd. to 4 decimal places). -In...

Q:

Hello I need help answering the following questions, thank you ! The speed with which consumers decide to purchase a product was investigated by a group of researchers. The researchers hypothesized...

Q:

A pet food producer manufactures and then fills 25-pound bags of dog food on two different production lines located in separate cities. In an effort to determine whether differences exist between the...

Q:

1. A pet food producer manufactures and then fills 25-pound bags of dog food on two different production lines located in separate cities. In an effort to determine whether differences exist between...

Q:

mie 8. Statistical Metrics (FRQ) You are given a random sample of users that includes how many items they have purchased in their lifetime. Each user falls under one of the internally defined...

Q:

8. A simple random sample of size 12 has sample mean of 3.37. The population standard deviation is 1.62. The population is approximately normally distributed. Construct a 95% confidence interval for...

Q:

* 15 points The table below shows the weights of packed ground coffee in grams(g). Solve for the following: a. Point estimate of the population mean b. Sample Variance c. Sample Standard Deviation d....

Q:

For an ideal gas obtain an expression for the ratio of the speed of sound where Ma = 1 to the speed of sound based on the stagnation temperature, c*/c0.

Q:

Grimtown took out a $10 million 6% loan on 1 January 20X1 to build a new football stadium. Not all of the funds were immediately required so $2 million was invested in 3% bonds until 30 June 20X1....

Q:

Wendy has set up an ordinary annuity to save for a retirement home in 1 2 years. If her monthly payments are $ 5 0 0 . and the annuity has an annual interest rate of 5 . 3 % , what will be the value...

Q:

2023 1040 form 1.Phillip and Claire are married and file a joint return. Phillip is self-employed as a real estate agent, and Claire is a flight attendant. Phillip and Claire have three dependent...