Question: A statistics practitioner took a random sample of 45 observations from a population whose standard deviation is 21 and computed the sample mean to be

A statistics practitioner took a random sample of 45 observations from a population whose standard deviation is 21 and computed the sample mean to be 102.

Note:For each confidence interval, enter your answer in the form (LCL, UCL). You must include the parentheses and the comma between the confidence limits.

A. Estimate the population mean with 95% confidence.

Confidence Interval =

B. Estimate the population mean with 95% confidence, changing the population standard deviation to 44;

Confidence Interval =

C. Estimate the population mean with 95% confidence, changing the population standard deviation to 9;

Confidence Interval =

(1 point) A statistics practitioner took a random sample of 45 observations from a population whose standard deviation is 21 and computed the sample mean to be 102. Note: For each confidence interval, enter your answer in the form (LCL, UCL). You must include the parentheses and the comma between the confidence limits. A. Estimate the population mean with 95% confidence. Confidence Interval = B. Estimate the population mean with 95% confidence, changing the population standard deviation to 44; Confidence Interval = C. Estimate the population mean with 95% confidence, changing the population standard deviation to 9; Confidence 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!

(1 point) A statistics practitioner took a random sample of 45 observations from a population whose standard deviation is 28 and computed the sample mean to be 98. Note: For each confidence interval,...

1. A statistics practitioner took a random sample of 41 observations from a population whose standard deviation is 30 and computed the sample mean to be 103. Note: For each confidence interval, enter...

Questions are below kenneth brown is the principal owner of brown oil inc. After quitting his university teaching job. ken has been able to increase this annual salary by a factor of over 100. at the...

The probability of a student playing football is known to be 0.53; and the probability of a student playing rugby is known to be 0.5. If the probability of playing both is known to be 0.38,...

Is this Possible ? kenneth brown is the principal owner of brown oil inc. After quitting his university teaching job. ken has been able to increase this annual salary by a factor of over 100. at the...

Hi, please help me to figure out this question, thank you! A statistics practitioner took a random sample of 45 observations from a population whose standard deviation is 21 and computed the sample...

( 1 point ) A statistics practitioner took a random sample of 5 2 observations from a population whose standard deviation is 2 1 and computed the sample mean to be 1 0 4 . Note: For each confidence...

A statistics practitioner took a random sample of 57 observations from a population whose standard deviation is 20 and computed the sample mean to be 106. Note: For each confidence interval, enter...

Could you please solve the problem below? I need detailed mathematical process and explanation. A statistics practitioner took a random sample of 4 8 observations from a population whose standard...

Could you please solve the question below? ( 1 point ) A statistics practitioner took a random sample of 4 8 observations from a population whose standard deviation is 2 4 and computed the sample...

6) According to purchasing power parity, if an item sells for $4.79 in the United States and ETB197, what is the ETB/$ exchange rate?

Hermann Company reported these ratios at December 31, 2014 (dollar amounts in millions): Current ratio = $50 / $40 = 1.25 Debt ratio = $40 / $70 = 0.57 Hermann Company completed these transactions...

To determine the break - even level of output, management must know fixed costs of operation per unit variable costs of output total sales a . 2 and 3 b . 1 and 2 c . 1 and 3 d . 1 , 2 , and 3

8. 200 points value: Problem 8-4 Coupon Rates Rhiannon Corporation has bonds on the market with 20.5 years to maturity, a YTM of 6.7 percent, and a current price of $1,044. The bonds make semiannual...

Technology. List at least ten transferable skills and personal attributes you possess that could be emphasized in the Qualifications Summary section of your rsum. Write an e-mail to your instructor...

What are the potential disadvantages of an online rsum? (Objective 4)

Prepare and deliver a five-minute presentation on a topic approved by your instructor. Include at least one quote, one visual aid, and your presentation notes. (Objectives 5 and 6)