Question

In: Statistics and Probability

Is there evidence to conclude that the number of people preferring Duracell battery is different from...

Is there evidence to conclude that the number of people preferring Duracell battery is
different from the number of people preferring Energizer battery, given the following:
Population 1: Duracell
n1 = 100
x1 = 308
s1 = 84
Population 2: Energizer
n2 = 100
x2 = 254
s2 = 67

Solutions

Expert Solution

orchestra answered 1 year ago
Next > < Previous

Related Solutions

1. Is there sufficient evidence to conclude that there is a difference in the mean number...
1. Is there sufficient evidence to conclude that there is a difference in the mean number of hours of tv watched for those that reported active lifestyle vs those that did not? DATA: Equal variances assumed F=4.997 Sig.=.025 t= .420 df=4998 Sig. (2-tailed)= .675 Mean difference= .49823 Std. Error difference= .51551 Lower=-.51256 Upper= 1.50903 Equal Variances not assumed t=-.421 df= 4966.401 Sig. (2-tailed)=.674 Mean difference= -.062 Std. Error difference= .146 Lower=-.348 Upper= .225 95% confidence interval a. should they reject...
Duracell released an advanced long lasting AAA battery, which it claims can last on average for...
Duracell released an advanced long lasting AAA battery, which it claims can last on average for at least 200 days with the standard deviation of 16 days in any remote control devices. A random sample of 100 batteries was selected and the results showed that new batteries lasted on average for 198 days. Construct 90% confidence interval for the population mean and interpret it. Also conduct the five-step hypothesis test at α = 0.05 to determine whether the battery manufacturer’s...
Duracell released an advanced long lasting AAA battery, which it claims can last on average for...
Duracell released an advanced long lasting AAA battery, which it claims can last on average for at least 200 days with the standard deviation of 16 days in any remote control devices. A random sample of 100 batteries was selected and the results showed that new batteries lasted on average for 198 days. Construct 90% confidence interval for the population mean and interpret it. Also conduct the five-step hypothesis test at α = 0.05 to determine whether the battery manufacturer’s...
1. Is there sufficient evidence to conclude that there is a difference in the mean age...
1. Is there sufficient evidence to conclude that there is a difference in the mean age of male customers vs female customers? DATA Equal variances assumed F= 1.572 Sig=.210 t= .370 df= 4998 Sig. (2- tailed)= .712 Mean difference= .185 Std. Error difference= .501 Lower= -.797 Upper= 1.167 95% confidence Interval Equal variances not assumed t= .370 df= 4992. 696 Sig. (2-tailed)= .712 Mean difference= .185 Std. Error difference= .501 Lower= .797 Upper= 1.167 a. should they reject or retain?...
Is there enough evidence to conclude that the average salary at the Company A is LESS...
Is there enough evidence to conclude that the average salary at the Company A is LESS than the average salary at the Company B ( α = 0.04)? Average Salary Company A Company B $58,000 $47,000 $59,000 $74,000 $60,000 $56,000 $73,000 $55,000 $63,000 $65,000 $62,000 $52,000 $59,000 $68,000 $55,000 $63,000 $61,000 $66,000 $60,000 $66,000 $54,000 $57,000 $66,000 $59,000 $61,000 $58,000 $48,000 $63,000 $61,000 $66,000 $60,000 $62,000 $54,000 $62,000 $67,000 $53,000 $63,000 $46,000 $53,000 $54,000 $55,000 $65,000 $52,000 $61,000 $49,000 $72,000...
Is there sufficient evidence to conclude that there is a mean difference in mile time for...
Is there sufficient evidence to conclude that there is a mean difference in mile time for runners when they had coffee with breakfast vs without? PAIRED SAMPLES TEST Pair 1 coffee-nocoffee Mean=-.31585 Std. Deviation= .52660 Std. Error mean=.08326 Lower=-.48427 Upper= -.14744 t= -3.793 df=39 Sig. (2-tailed)=.001 a. Should they reject or retain? Give numerical justification b. Calculate the effect size c. Interpret the effect size in the context of the situation
Determine if there is sufficient evidence to conclude the average amount of deaths is equal to...
Determine if there is sufficient evidence to conclude the average amount of deaths is equal to 6000 in the United States and territories at the 0.10 level of significance. Summary Table for Deaths AVERAGE 4,292 MEDIAN 3,085 STANDARD DEVIATION 4292.71585 MAX 20,895 MIN 316 Clearly state a null and alternative hypothesis Give the value of the test statistic n=52 Report the P-Value Clearly state your conclusion (Reject the Null or Fail to Reject the Null) Explain what your conclusion means...
Determine if there is sufficient evidence to conclude the average amount of deaths is equal to...
Determine if there is sufficient evidence to conclude the average amount of deaths is equal to 6000 in the United States and territories at the 0.10 level of significance. N=52 Clearly state a null and alternative hypothesis Give the value of the test statistic Report the P-Value Clearly state your conclusion (Reject the Null or Fail to Reject the Null) Explain what your conclusion means in context of the data. Summary Table for Deaths Mean 4,001 Median 2,961 Standard Deviation...
Determine if there is sufficient evidence to conclude the average amount of marriages is greater or...
Determine if there is sufficient evidence to conclude the average amount of marriages is greater or equal to 2500 in the United States and territories at the .05 level of significance. N=52 Clearly state a null and alternative hypothesis Give the value of the test statistic Report the P-Value Clearly state your conclusion (Reject the Null or Fail to Reject the Null) Explain what your conclusion means in context of the data. Summary Table for Marriages Mean 3,801 Median 3,000...
What did Ekman and Friesen conclude from their research on facial expressions a. people around the...
What did Ekman and Friesen conclude from their research on facial expressions a. people around the world agree on the facial expressions that represent happiness and sadness but not other emotions b. people do not feel an emotion unless it registers on their face c. people who live in isolated primitve societies and never see modern westerners are unable to recognize emotions from facial expressions d. particular facial expressions are universally associated with particular emotions
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT