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Q1) Q1) Cases of retinitis pigmentosa have been examined in 2 distinct populations: Swiss (110 individuals) and English (125) individuals. Genetic disease may be inherited in one of 3 ways: sex linked, recessive, and dominant. Survey found:
English
Swiss
Sex linked cases
46
1
Recessive cases
25
99
Dominant cases
54
10
Total
125
110
Do these data illustrate a important association between ethnic origin and genetic type? Use alpha of 1% and identify null and alternate hypotheses
Q2) Using standard normal table, show critical value for left-tailed test with α = 0.02.
A) 2.05
B) - 2.33
C) - 2.05
D) 2.33
Q3) Eagle Ridge Contractors Association claims average price of home in their subdivision is $125,150 with standard deviation of $7,350. Sample of 36 homes for sale in this subdivision had the average selling price of= $123,550. Is there evidence that costs of homes for sale in this subdivision are really lower than claimed?
Find a 95 percent confidence interval for the population mean concentration of uric acid in this patients blood. The concentration of uric acid in this patient's blood.
Evolutionary theories often, Emphasize that humans have adapted to their physical environment. One such theory hypothesis that:
Ninety of the sample students are in the Business College, 120 are in the Liberal Arts College, and 90 are in the Education College.
Find Probability of independent events.Consider again the auto repair rates described. If you own two cars, what is the probability that.
We are establishing a quality control program for a process and need to establish the mean and standard deviation for the process. The first 10 batches had samples of size 5 taken.
Which is the probability that the median of the sample is between $17 and $20?
A state-wide sample survey is to be made. First, the state is subdivided into counties. Seven counties are selected at random and further sampling is concentrated on these seven counties.
What is the probability that there will be more than three trucks either being loaded or waiting?
If campaign can be expected to also to rise the probability of best case scenario to 0.4, is it a good investment.
Determine the mean and standard deviation of this distribution?
How many boxes must the processor sample to be 95 percent confident that the sample mean does not differ from the population mean by more than 0.2 pounds?
When we carry out a goodness of fit chi-square test, the expected frequencies are based on the alternative hypothesis
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