Answer : 20% of doctors do not like that product.
Hope this helps. - M
Answer:
The probability that none of the 10 calls result in a reservation is 0.60%. In turn, the probability that at least one call results in a reservation being made is 99.40%.
Step-by-step explanation:
Since approximately 40% of the calls to an airline reservation phone line result in a reservation being made, supposing an operator handles 10 calls, to determine what is the probability that none of the 10 calls result in a reservation, and what is the probability that at least one call results in a reservation being made, the following calculations must be performed:
0.6 ^ 10 = X
0.006 = X
0.006 x 100 = 0.60%
Therefore, the probability that none of the 10 calls result in a reservation is 0.60%.
100 - 0.60 = 99.40
In turn, the probability that at least one call results in a reservation being made is 99.40%.
The answer you just put is correct
Answer:The bill before tax was $8.33
Step-by-step explanation: Divide tip by portion of bill:
1.80/0.20 = 9.00
The total bill before the tip was $9.00
Divide total bill by 1+ sales tax rate:
9.00 / 1.08 = 8.33
Answer:
The null and alternative hypotheses are:
Under the null hypothesis, the test statistic is:
Therefore, the test-statistic is 
Now the F critical value at 0.02 significance level for df1 = 10- 1 =9 and df2 = 16 - 1 =15 is:
Since F statistic is greater than the F critical value, we therefore, reject the null hypothesis and conclude that there is sufficient evidence to support the claim that there is a difference in the variation in the listening times for men and women.
