Chapter 6.5, Problem 28E

P(z>2) =?

I would like all parts for  E, ( i, ii, iii, iv v, vi)  to be answered please  Car tyres come in many different brands. Even on a car, the tyres can wear out after travelling differentdistances, due to cornering, braking and wheel alignment. Manufacturers of car tyresare interested in the average distance in kilometres travelled by tyres, or the lifetime of tyres until they are considered un-usable and need tobe replaced. At this time a tyre is considered unroadworthy.   E) The lifetime T in thousands of km of brand E of car tyres, satisfies a probability density function given by.  f(t)=(at^2  0=t=50, b(100-t) 50=t=100, 0 elsewhere) i) Show that a = 3/312500 and b= 3/6250 ii) For 36 tyres of brand E, find the expected number that will last longer than 40,000 km. iii)Sketch the graph of T on the axes below, clearly labelling the scale. iv) Find the expected value and variance of brand E car tyres. v) Find the probability that the lifetime of brand E car tyres lies within two standard…

what is z observed?

A HW 6.7 - MTH 500 70780, sectio ô https://www.webassign.net/web/Student/Assignment-Responses/last?dep=27886659 Insert =, as appropriate. (a) TT ? v 3.1416 (b) V2 ? v 1.412 (c) V5 ? v 2.2360679 (d) 9 ? v 3.0000 4:55 PM P Type here to search O 72°F Mostly cloudy 10/24/2021

Type Il error occurs when a. we accept a false hypothesis b. we accept a tru hypothesis C. we reject a false hypothesis d. we reject a tru hypothesis e. None of these

I need fast plz

12 13 14 15 16 17 18 19 20 21 22 23 24 25 H Movie Ticket Prices 4 5 5 B 6 10 11 Cost Of Ticket Which of the following is the best measure of center for the data shown, and what is that value? O The mean is the best measure of center and equals 11. O The mean is the best measure of center and equals 11.5. O The median is the best measure of center and equals 11. O The median is the best measure of center and equals 11.5.

S US Hist 8 lcs: Section 2-2 | Sch 9 Messages | Schoology 9 Schoology 9 Temporarily Unavailable ology.com/common-assessment-delivery/start/3156234148?action=onresume&submissionld=194334572 x Clear * Undo - Redo Two water tanks release water at the same time. Water tank A holds 6,000 gallons of water and water is released from this tank at a rate of 2 gallons per minute, m. Water tank B holds 8,250 gallons of water and water is released at a rate of 3 gallons per minute, m. After how many minutes will the two tanks hold the same amount of water? Show work in order to receive full credit. А. B. 450 minutes 14,250 minutes C. 2,250 minutes They will never hold the same amount of water. D. 5 6 7 8 9 10 11 12 13 14

A diet center claims that it has the most effective weight loss program in the region. Its advertisements say, “Participants in our program lose more than 4 pounds within a month.” Six clients of this program are weighed on the first day of the diet and then one month later. Let the difference be defined as Weight on First Day of Diet minus Weight One Month Later. (You may find it useful to reference the appropriate table: z table or t table) (Image is table) a. Specify the null and alternative hypotheses that test the diet center’s claim. (Which is Correct) H0: μD = 4; HA: μD ≠ 4 H0: μD ≥ 4; HA: μD < 4 H0: μD ≤ 4; HA: μD > 4   b. Assuming that weight loss is normally distributed, calculate the value of the test statistic. (Round intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.) Test Statistic =   c. Find the p-value. p-value < 0.01 0.05 ≤ p-value < 0.10 p-value ≥0.10 0.025≤ p-value < 0.05 0.01 ≤…