Question: Consideranormalpopulationwithanunknownpopulation standard deviation. A random sample results in x = 48.68 and s2 = 33.64. (a) Compute a 95% confidence interval for if x and

Consideranormalpopulationwithanunknownpopulation standard deviation. A random sample results in x = 48.68 and s2 = 33.64.

(a) Compute a 95% confidence interval for if x and s2 were obtained from a sample of 16 observations.

(b) Compute a 95% confidence interval for if x and s2 were obtained from a sample of 25 observations.

(c) Use your answers to discuss the impact of the sample size on the width of the interval.

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:

Consider a normal population with an unknown population standard deviation. A random sample results in x =48.68 and s2 = 33.64. a. Compute the 95% confidence interval for if x and s2 were obtained...

Q:

Consider a normal population with an unknown population standard deviation. A random sample results in = 48.68 and s2 = 33.64. a. Compute the 95% confidence interval for if and s2 were obtained...

Q:

1. Given that: Point estimate, X = 4 hours. Standard deviation of the sample mean = 0.2551 Find the confidence interval for the 95% confidence interval. 2. A statistician chooses 27 randomly selected...

Q:

Consider a normal population with an unknown population standard deviation. A random sample results in and s2 = 33.64. a. Compute a 95% confidence interval for if and s2 were obtained from a sample...

Q:

Exercise 8-19 Algo Consider a normal population with an unknown population standard deviation. A random sample results in x? = 48.44 and s 2 = 10.89. [You may find it useful to reference the t table...

Q:

Consider a normal population with an unknown population standard deviation. A random sample results in x = 61.32 and s 2 = 12.96. [You may find it useful to reference the t table .] a. Compute the...

Q:

1. A study is conducted to estimate the difference between the body mass index (BMI) of males and females. The following random samples were obtained with the following results: Male BMI n = 40 mean...

Q:

Set Student Name: 1. Answer true or false for each part, and if false, explain your answer. a. The point estimate for the population mean, , of an x distribution is x-bar, computed from a random...

Q:

Math 1342 Test 5 Question 1 25 points A random sample of data was obtained 47 80 68 29 95 67 70 35 54 13 15 28 79 49 21 64 40 52 40 44 60 80 79 78 57 80 102 90 48 40 80 16 50 a. Use StatCrunch, Excel...

Q:

Location Income ($1,000) Urban 27 Rural 25 Suburban 25 Suburban 26 Rural 30 Urban 29 Rural 33 Urban 30 Suburban 32 Urban 34 Urban 35 Urban 40 Rural 30 Rural 33 Urban 42 Suburban 32 Urban 43 Urban 43...

Q:

Option-adjusted duration and effective duration are alternative measures used by analysts to evaluate fixed-income securities with embedded options. Briefly describe each measure, and how to apply...

Q:

Consider the following haploid Wright-Fisher populations: [10] a. What is the chance of fixation and the chance of loss of the A1 allele after one generation of drift, where: i. f_(A_1 ) = 0.75, N =...

Q:

Why should a bank reconciliation be prepared? Group of answer choices To make sure the company has not paid the wrong supplier for supplies purchased To explain any difference between the bank...

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...