1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nezavi [6.7K]
3 years ago
11

Rachel measures the lengths of a random sample of 100 screws. The mean length was 2.6 inches, with a standard deviation of 1.0 i

nches. Using the alternative hypothesis (µ < µ0), Rachel found that a z-test statistic was equal to -1.25. What is the p-value of the test statistic? Answer choices are rounded to the thousandths place.
Mathematics
1 answer:
olga_2 [115]3 years ago
4 0

Answer:

Step-by-step explanation:

Using the alternative hypothesis (µ < µ0),

To find the p-value with test statistic -1.25 and assuming a standard level of significance of 0.05, using a p value calculator, the p-value is 0.1057 which is great that 0.05. Thus, the results is not significant.

Using the p value calculation.

1. Check the left tailed z table as the test statistic is negative,

2. Then find the probabilitythat z is greater than your test statistic (look up your test statistic on the z-table- the value under 1.2 and 0.05 which is 0.8944

3. Then, find its corresponding probability, and subtract it from 1 to get your p-value- 1-0.8944 = 0.1056.

You might be interested in
the simple interest paid on a loan over a period of two and a half years is birr 375. if the rate of interest was 8% per annum,
Reil [10]

Answer:

4678.5

Step-by-step explanation:

\frac{375}{8} = 46.875\\

46.875 * 100 = 4687.5

8 0
3 years ago
I need help plz !!!!
svetlana [45]
X = 66 or 180 - 114, which = 66
3 0
3 years ago
The log: 20 can be written as
adoni [48]

Answer:

10+10

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
How many times larger is the value of 42.38 compared to 4.238
patriot [66]

Answer:

10 times larger

5 0
3 years ago
Which expression represents the calculation “add 5 and 6, then multiply by 3"?
Anarel [89]
(5 + 6)3   would represent  what you want.
5 0
3 years ago
Read 2 more answers
Other questions:
  • Find the value of x so that the line passing through (10, 5) and (x, 9) has a slope of -2.
    11·2 answers
  • How do I solve (4x+1)(x-5)=-43x-41
    12·1 answer
  • How do you do a flow proof?
    13·1 answer
  • Judy earns $65 for working five hours. find the constant rate of variation
    8·2 answers
  • What would you do if u got hurt really bad and how would u deal with it???? 5 sentences
    14·2 answers
  • Jen bought some shirts from Store A for $15 each and a pair of pants for $45. Stacey bought some shirts at Store B for $20 each
    7·1 answer
  • ????????????????????????????????????
    12·1 answer
  • Mark has already earned money for mowing lawns over the summer when he takes a job at the local grocery store, earning $9.50 per
    10·1 answer
  • Hi! Pls help:
    13·2 answers
  • Joanne cannot decide which of two washing machines to buy. The selling price of each is ​$480 The first is marked down by ​%50 T
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!