Juli8283
12.08.2020 •
Mathematics
Installation of a certain hardware takes random time with a standard deviation of 5 minutes.
(a) A computer technician installs this hardware on 64 different computers with an average installation time of 42 minutes. Compute a 95% confidence interval for the mean installation time.
(b) Suppose that the population mean installation time is 40 minutes. A technician installs the hardware on your PC. What is the probability that the installation time will be within the interval computed in (a)?
(c) A manager questions the assumption of the above. Her pilot sample of 40 installation times has a sample standard deviation of s = 6.2 min, and she says that it is significantly different from the assumed value of standard deviation = 5 min. Do you agree with the manager? Conduct a suitable test of a standard deviation.
Solved
Show answers
More tips
Answers on questions: Mathematics
- M Mathematics What is the ratio 12 to 63 written as a fraction in lowest terms? a.12/63 b.4/7 c.3/7 d.4/21...
- M Mathematics X-4=2(y-3) in slope intercept form?...
- M Mathematics Find the values of x and y. A 47 B D C Drawing not to scale○ x = 90, y = 47 ○ x = 43, y = 47 ○ x = 47, y = 43 ○ x = 90, y = 43...
- M Mathematics Help meh gcf help im very bad at this topic...
- M Mathematics A blackjack player at a Las Vegas casino learned that the house will provide a free room if play is for four hours at an average bet of $50. The player’s strategy provides a probability...
- M Mathematics HELPPPP ASAP! I WILL GIVE BRAINLIS!! Which equation represents the line shown in the graph below? A. Y= -3x+2 B. Y = 2x-3 C. -3x-2 D. Y=3x-2...
- M Mathematics Can people stop ignoring??? What is the answer and solution I’ll give brainlist and points???...
- M Mathematics Which two conversion factors would be used to convert the quantity of 4500 seconds into hours....
- M Mathematics XB−→− is the angle bisector of ∠AXC. m∠AXB=23°...
- M Mathematics 16 Your local grocery store is having a special on soda. They re selling a 12-pack of 12 oz. cans for $4.50. The 20 oz. bottles are also on sale for $0.75. Should you buy one 12-pack...
Ответ:
Y= PV*(1 + g)^t
Step-by-step explanation:
Giving the following information:
Number of Restaurants (PV)= 2,000
Growth rate (g)= 3%
To calculate the number of restaurants after t years, we need to use the following formula:
Y= PV*(1 + g)^t
For example, for 10 years:
Y= 2,000*(1.03^10)
Y= 2,688