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(i) what is the probability that none of them buy product Y?
(ii) what is the probability that at least three of them buy product Y?
Choose an appropriate hypothesis to test.
H0: mu =
_________, H1: mu ( >, <, not equal) _________
Find the P-value for this test.
A. 0.25 < P-value < 0.50
B. 0.0005 < P-value < 0.0010
C. 0.0025 < P-value < 0.0050
D. 0.025 < P-value < 0.050
With a significance level of a = 0.05 ( fail to reject, reject ) H0.
For this test, we assumed that the underlying distribution of the data is a t-distribution.
A. True
B. False
1. Test the hypothesis H0 : p=0.5 versus H1: p is not equal to 0.5. Usea a = 0.05
A. Fail to reject H0
B. Reject H0
2. What is the P-value for this test? Round your answer to 4 decimal places. Enter your answer in accordance to the question statement
The 2004 presidential election exit polls from the critical state of Ohio provided the following results. There were 2020 respondents in the exit polls and 768 were college graduates. Of the college graduates, 412 voted for George Bush.
(a) Calculate a 99% confidence interval for the proportion of college graduates in Ohio that voted for George Bush. Round the answers to 3 decimal places.
(b) Calculate a 95% lower confidence bound for the proportion of college graduates in Ohio that voted for George Bush. Round the answer to 3 decimal places.
What proportion of people will contract the flu ?
Paras Ltd. issued 40000, 11% debentures of 100 rupees each on 1st April 2015. Half of the debentures were due for redemption on 31st March 2019. The company decided to transfer the minimum required amount to Debenture Redemption Reserve on 31st March, 2018 and invested the necessary amount in debenture Redemption Investments on 30th April, 2018. Pass the necessary journal entries for Redemption of Debentures.
discovered that an observation 19.5 was incorrectly recorded whereas the correct value was
15.9. Calculate the correct mean from these information.
A population of N=15 scores has a mean of u=8 One score in the population is changed from X=20 to X=5. What is the value for the new population mean?
#340153 on Dec 2023