A. a melting point test of 10 samples of a binder used in manufacturing a rocket propellant resulted in a sample mean of 154.2 degrees f. assume that the melting point is approx. normally distributed with a standard deviation of 1.5 degrees f. a. is there evidence at 1% significance to conclude that the melting point is less than 155 degrees f on average? (do all steps) b. what is the probability of a type ii error
(b) if the true average melting point
i 154 degrees?
ii. 153.5 degrees?
iii. 153 degrees?
iv. 152 degrees?
c. what happens to b as the true mean moves farther away from the hypothesized mean?
d. what sample size would be needed to detect a difference of more than 2 degrees with 80% power and a 1% significance level?

this story was prepared by jim

mccullaugh in los angeles and

al stewart in new york.

new york the colossal success of "top gun" appears to have dramatically altered madison avenue's

perception of corporate sponsorship

of home video projects.

the paramount home video re- lease, featuring a 60- second diet

pepsi spot, was by no means the

first prerecorded video to carry an advertiser's plug, but it was the

first major theatrical release to do so. in the aftermath of the title's

success, paramount is widely ex- pected to ink a similar deal for

"crocodile dundee" or "star trek

iv" or both.

corporate america's new attraccds push british

recording sales

to 19% gain

london fueled by the compact

disk boom, the value of u.k. manu- facturer shipments of recordings

rose 19% in the 12 -month period ended march 1987, according to the

british phonographic industry.

total value of u.k. shipments for

the period was $755 million for all

configurations. (all value figures

are based on an exchange rate of

$1.68 to the pound sterling.)

cd sales totaled 10.7 million units

worth $121.3 million- compared

with 3.7 million units worth $39.5

million in the prior 12 months -and

accounted for two -thirds of the

overall gain in trade value. at present growth rates, says the bpi, cd

sales for calendar 1987 will reach 20

(continued on page 79)

step-by-step explanation:

theres no picture: /

step-by-step explanation:

dalila is incorrect. the whisker on the left is very long, going all the way out to 5. the whisker goes from 5 to 30, so it has a spread of 25. the rest of the box plot values are closer together, so 5 is an outlier

7.3

step-by-step explanation: