A sample of size N= 123 adults randomly selected, spent 8.20 hr/ week on the internet with a standard deviation of 6=9.84 hr. Construct a Confidence Interval of 95% for the population mean N the population mean hours for the internet ?

Does it take a different amount of time for seeds to germinate if they are near rock music that is continuously playing compared to being near classical music? The 48 seeds that were exposed to rock music took an average of 28 days to germinate. The standard deviation was 13 days. The 47 seeds that were exposed to classical music took an average of 32 days to germinate. The standard deviation for these seeds was 10 days. What can be concluded at the a - 0.01 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: Select an answer Select an answers Select an answerv (please enter a decimal) Hị: Select an answer Select an answer Select an answer v (Please enter a decimal) c. The test statistic ?- (please show your answer to 3 decimal places.) d. The p-value- (Please show your answer to 4 decimal places.) e. The p-value is ? a f. Based on this, we should Select g. Thus, the final conclusion is that . answer v the null…

A sample of 52 American adults found they generated a mean of 4.3 pounds of waste per day with a standard deviation of 1.2 pounds. Make a 98% confidence interval for mean daily waste generated by all American adults. Interpret the intErval

The manager of a warehouse store wants to estimate the average number of laser printer toner cartridges sold each day. A random sample of 37 days is selected and the sample mean is 115. The population standard deviation is estimated to be 9.8. Test the claim, using a 95% confidence interval for the mean, that the average number of laser printer toner cartridges sold each day is 110.