Question

is all light bulbs that function as designed. The regeaiu nber of light bulbs per household that do not function as designed. the second basic step in a statistical study in this situation. Choose the should only gather raw data from light bulbs that function as designed. should only gather raw data from light bulbs that do not function as des should gather data about functionality from the largest sample of light b researcher can gather data should gather raw data from all light bulbs. the third basic step in a statistical study in this situation. Choose the stic of interest is the average number of light bulbs per household th ned. stic of interest is the average number of light bulbs per household t ned. tic of interest is the percentage of light bulbs that do not function a tic of interest is the percentage of light bulbs that function as desi he fourth basic step in a statistical study in this situation. Choose of light bulbs that function as designed in the sample is greater er can be confident that all light bulbs function as designed. ould use the sample statistic as an estimate for the population f light bulbs that function as designed and then use the metho ood that estimate is ic provides no useful information to the researcher in this situ lowed correct procedures, he or she can be confident that t the average number of light bulbs that function as designec The average number of light buibs per household tha funson as designed A. The population is all light bulbs that function as designed The O B. The population is all households. The researcher light bubs per household that do not OC. The population is al ho ight bulbs per household that function as designesd O D. The population is all ight bulbs that function as designed. The researcher d the average number of light bulbs per household that do not function as gr of Determine how to apply the second basic step in a stafistical study in thvis situaion Choose the correct answer A. The researcher should only gather raw data from light bulbs that function gned OB. The researcher should only gather raw data from light bulbs that C. The researcher should gather data about functionality from the largest sample of about whom the researcher can gather data D. The researcher should gather raw data from all light bults designed do not function as designed Determine how to apply the third basic step in a statistical study in this sihuation. Choose the correct answer below A. The sample statistic of interest is the average number of function as designed average number of light bulbs per household that O B. The sample statistic of interest is the average number of light bulbs per function as designed O C. The sample statistic of interest is the percentage of light bulbs that do not OD. The sample statistic of interest is the percentage of light bulbs that function as as designed. Determine how to apply the fourth basic step in a statistical study in this situation. Choose the correct answer below. O A. If the percentage of light bulbs that function as designed in the sample is g then the researcher can be confident that all light bulbs function as greater than 50%. designed B. The researcher should use the sample statistic as an estimate for the population value of the average number of light bulbs that function as designed and then use the methods of statistic to determine how good that estimate is. OC. The sample statistic provides no useful information to the researcher in this situation. O D. If the researcher followed correct procedures, he or she can be confident that the sample statistic is equal to the average number of light bulbs that function as designed. elow nswer b Determine how to apply the fifth basic step in a statistical study in this situation. Choose the correct a A. There is no way to determine how wll the sample statistic estimates the population parame B. The researcher cannot draw any conclu he researcher should use the methods of statistics to determine the quality of the estimate of the population parameter and draw conclusions based on this estimate accordingly. sions based on the value of the sample statistic. D. The researcher knows that the sample statistic is equal to the population parameter, so he or she may draw conclusions with complete confidence.

Answer 1

1. A) is correctly marked. The population is all the light bulbs which function as designed.

2. A) The researcher should only gather raw data from light bulbs that function as designed

3. A) The sample statistic is the average number of light bulbs per household that function as designed.

4. B) is correct as the researcher should use the sample statistic, the mean of sample as the population parameter, mu, and then find how good the estimate is.

5. C) The researcher should use methods of statistics like one sample t-test in this case to determine the quality of the estimate and then draw conclusions accordingly.