Mathematics, 21.05.2021 02:40 taridunkley724
The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took the customers in the sample to check out was 3.1 minutes. The population standard deviation is known to be 0.5 minute. We want to test to determine whether or not the mean waiting time of all customers is significantly more than 3 minutes. Use alpha = 0.05.
1. The test statistic is a:.
a. 1.96.
b. 1.64.
c. 2.00.
d. 0.056.
2. The p-value is:.
a. 0.0456.
b. 0.0482.
c. 0.4772.
d. 0.9759.
e. 0.9772.
3. At the 5% level, you:___.
a. fail to reject the null hypothesis.
b. reject the null hypothesis.
4. Compute the probability of a Type II Error when mu = 2.8.
Answers: 3
Mathematics, 21.06.2019 17:00
Ajar of gumballs contains 4 reds, 2 greens, and 6 blues. what is the probability of getting two blues in a row without replacement?
Answers: 1
Mathematics, 21.06.2019 21:30
A(1,1) b(-3,0) c(-4,-1) d(3,-2) drag it to correct position
Answers: 2
Mathematics, 22.06.2019 01:00
3questions show how you solved the problem 1. subtract & simplify (–y2 – 4y – 8) – (–4y2 – 6y + 3) 2.multiply and simplify 2x2y3z2 · 4xy4x2 3.multiply and simplify (x – 4) (x2 – 5x – 6)
Answers: 1
Mathematics, 22.06.2019 03:30
Find the sixth term of the following geometric sequence.
Answers: 1
The manager of a grocery store has taken a random sample of 100 customers. The average length of tim...
Mathematics, 28.08.2021 04:50
Mathematics, 28.08.2021 04:50
Mathematics, 28.08.2021 04:50
Mathematics, 28.08.2021 04:50
Mathematics, 28.08.2021 04:50
English, 28.08.2021 04:50
Mathematics, 28.08.2021 04:50
Mathematics, 28.08.2021 04:50
English, 28.08.2021 04:50
Mathematics, 28.08.2021 04:50