An advertising executive wants to estimate the mean weekly amount of time consumers spend watching traditional television daily. Based on previous studies, the standard deviation is assumed to be 24 minutes. The executive wants to estimate, with 99% confidence, the mean weekly amount of time to within +6 minutes. a. What sample size is needed? b. If 95% confidence is desired, how many consumers need to be selected? a. The sample size required for 99% confidence is (Round up to the nearest integer.) b. The sample size required for 95% confidence is. (Round up to the nearest integer.)

#121 Unit 4 Assessment Question 11 and 12.

Why would you calculate sD when you have it already offered in the assignment??

Greg and Martin's age when added together come to a total of 60 years. Now Greg is twice as old as Martin was when Greg was half as old as Martin will be when Martin is five times as old as Greg was when Greg was five times as old as Martin. With all this excellent data how old is Greg?

Describe in your own words the YRBBS to someone who does not know the system. Specifically, explain:  What is it? Who owns it? Who can usethe system? Where does the data in it come from? From whom is the data collected?

How do I solve the following problem?

AJ’s sleep pattern had been fluctuating due to stress and diet, so he started to keep a diary of how many hours he slept each night. On the 4th night after he started the diary, AJ slept 9.4 hours, which was the most sleep he got any night. Gradually, he got less sleep each successive night until, on the 18th night after he started the diary, AJ slept 6.2 hours, which was the least sleep he got any night. After keeping his diary for 6 months, he realized that the number of hours he got each night followed a sinusoidal curve. Let t be the number of nights since he started his diary, and s be how many hours he slept that night. It may be helpful to draw a crude sketch of the sleep time function and label the known t − and s − values on it. POSITIVE or NEGATIVE SIN or COS Maximum s − value = Minimum s − value = ______________ ______________ Middle s − value = ______________ = D Amplitude = ______________ = A ⇒ B = ______________ Given the crude sketch of the height function, the…