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artcher [175]
2 years ago
15

Please need HELP with A, B, and C!!

Mathematics
1 answer:
Simora [160]2 years ago
7 0

Answer:

as in pic below

Step-by-step explanation:

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An automobile manufacturer wants to assess a new style of visual display to see if it changes the amount of reported eye-strain
finlep [7]

Answer:

Standard error = 0.34

t-statistic = 11.18

Step-by-step explanation:

Given Data:

Mean difference d = 3.8

Standard deviation S.D = 1.36

Number of people = 16

The appropriate test are:

1. Standard error

2. T- statistic

1. Calculating the standard error using the formula;

Standard error = S.D/√n

                         = 1.36/√16

                          = 1.36/4

                           = 0.34

2. Calculating the t-statistic using the formula;

t-statistic = d/(S.D/√n)

              = 3.8/(1.36/√16)

              = 3.8/(1.36/4)

              = 3.8/0.34

               = 11.18

7 0
3 years ago
Zander wants to find out what the most popular sporting event is in the district’s high schools. He surveys a sample of the popu
Leokris [45]

Answer:

Surveying a sample would be valid if the population contains a diverse group of people.

7 0
3 years ago
Read 2 more answers
A marble factory ships marbles using bags of 10, cases of 100, cartons of 1,000, and boxes of 10,000. The factory has an order f
disa [49]
They factory could use 35 cases of 100 and 7 bags of 10.

I hope my answer helps. =)
6 0
3 years ago
"What is the probability of drawing a jack or queen from a standard deck of cards?"
Natasha2012 [34]
Well, there are 52 cards in a deck, with 4 suits. there is a Jack and queen per suit, so that is a total of 8 jacks and queens in the deck. that probability looks like 8:52 as a ratio, or 2:13 simplified. so, you are likely to draw a Jack or queen 8 out of 52 times, or 2 out of 13 times
5 0
3 years ago
What is the sum of the geometric sequence -4, 24, -144, ... if there are 6 terms?
kondor19780726 [428]

Answer:

1556963

Step-by-step explanation:

vjrogjrogjogjrg

6 0
3 years ago
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