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VMariaS [17]
2 years ago
11

Can someone help me on all three of these

Mathematics
1 answer:
Lera25 [3.4K]2 years ago
4 0
5).85 6.)100 7.)40hope this helps this id what im positive of
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A study investigated whether price affects people's judgment. Twenty people each tasted six cabernet sauvignon wines and rated h
patriot [66]

Answer:

t=5.5080( to 3 d.p)

Step-by-step explanation:

From the data given,

n =20

Deviation= 34/20= 1.7

Standard deviation (sd)= 1.3803(√Deviation)

Standard Error = sd/√n

= 1.3803/V20 = 0.3086

Test statistic is:

t = deviation /SE

= 1.7/0.3086 = 5.5080

ndf = 20 - 1 = 19

alpha = 0.01

One Tailed - Right Side Test

From Table, critical value of t =2.5395

Since the calculated value of t = 5.5080 is greater than critical value of t = 2.5395, the difference is significant. Reject null hypothesis.

t score = 5.5080

ndf = 19

One Tail - Right side Test

By Technology, p - value = 0.000

Since p - value is less than alpha , reject null hypothesis.

Conclusion:

From the result obtained it can be concluded that ,the data support the claim that the mean rating assigned to the wine when the cost is described as $90 is greater than the mean rating assigned to the wine when the cost is described as $10.

5 0
3 years ago
-1/2 + 2. What is the solution to this problem
andriy [413]
-1/2 + 2 = 1.5 
because if u add 2 to a minus half it goes 0 and then 1.5 (positive half)
8 0
3 years ago
Read 2 more answers
Idk sooo please help
borishaifa [10]

Answer:

20 points

Step-by-step explanation:

Points:

  • 21, 13, 14 and x for the last game

Average:

  • (21+13+14+x) / 4 = 17
  • 48 + x = 4*17
  • 48 + x = 68
  • x = 68 - 48
  • x = 20

They must score 20 points

6 0
3 years ago
Simon and Andrew see a speed limit sign that says 65 kilometers per hour. They decide to convert this speed limit to miles per h
stealth61 [152]

Answer:

40.38912735 or about 40 miles per hour (rounded to the nearest whole number)

Step-by-step explanation:

1.) You want to convert kilometers per hour to miles per hour.

2.) There are 0.62137119 miles in 1 kilometer.

3.) Multiply 65 by 0.62137119

4.) That equals 40.38912735

5.) This answer can be rounded to 40 mph.

5 0
3 years ago
I need help with this
PIT_PIT [208]
2x+8y
2x+8times2
2x+16
18x
Your final answer is 18x!
7 0
3 years ago
Read 2 more answers
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