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Dimas [21]
3 years ago
12

Two different companies have applied to provide cable television service in a certain region. let p denote the proportion of all

potential subscribers who favor the first company over the second. consider testing h0: p = 0.5 versus ha: p ≠ 0.5 based on a random sample of 25 individuals. let the test statistic x be the number in the sample who favor the first company and x represent the observed value of x.
Mathematics
1 answer:
SpyIntel [72]3 years ago
7 0
The one of the rejection regions which is most appropriate is R1, because x either too large or too small contradicts p=  .5 and supports p is not equal .5 A type I error consists of judging one of the two companies favored over the other when in fact there is a 50-50 split in the population. A type II error will involves judging the split to be 50-50 when it is not.
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Let log_(b)A=3; log_(b)C=2; log_(b)D=5 what is the value of log_(b)((A^(5)C^(2))/(D^(6)))
Colt1911 [192]

Answer:

-11

Step-by-step explanation:

Given

\log_bA=3\\ \\\log_bC=2\\ \\\log_bD=5

Use properties:

\log_b(A\cdot C)=\log_bA+\log_bC\\ \\\log_b\dfrac{A}{C}=\log_bA-\log_bC\\ \\\log_bA^k=k\log_bA

Thus,

\log_b\dfrac{A^5\cdot C^2}{D^6}\\ \\=\log_b(A^5\cdot C^2)-\log_bD^6\\ \\=\log_bA^5+\log_bC^2-\log_bD^6\\ \\=5\log_bA+2\log_bC-6\log_bD\\ \\=5\cdot 3+2\cdot 2-6\cdot 5\\ \\=15+4-30\\ \\=-11

3 0
3 years ago
A bag contains 3 red marbles, 4 blue marbles, and 6 green marbles. Which pair of events are complementary events? A) choosing a
kotykmax [81]

Answer:

Event D

Step-by-step explanation:

Complementary events are those events that are opposites of each other. i.e. in this case the complementary event for choosing a green marble is not choosing a green. It has nothing to do with choosing or not choosing marbles of colors other than green.

7 0
3 years ago
Anna wants to buy a car in two years and wants to have $10,000 for the purchase. How much will Anna need to deposit today in an
Brut [27]

Answer:

Anna will need to deposit \$9,050.25

Step-by-step explanation:

we know that    

The compound interest formula is equal to  

A=P(1+\frac{r}{n})^{nt}  

where  

A is the Final Investment Value  

P is the Principal amount of money to be invested  

r is the rate of interest  in decimal

t is Number of Time Periods  

n is the number of times interest is compounded per year

in this problem we have  

t=2\ years\\A=\$10,000\\ r=0.05\\n=12  

substitute in the formula above  and solve for P

10,000=P(1+\frac{0.05}{12})^{12*2}  

10,000=P(1.0042)^{24}  

P=10,000/(1.0042)^{24}    

P=\$9,050.25    

8 0
3 years ago
3:
Klio2033 [76]
M=e/c2

U just divide e=mc2 by c2 on both sides to isolate m
3 0
3 years ago
Read 2 more answers
Completează tabelul de mai jos:
KiRa [710]
I’ll what is this language
4 0
3 years ago
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