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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?
University of Waterloo are much susceptible to hypnosis which University of Tennessee undergraduates. Set up H0 and Ha for the test.
Why might driver be tempted not to use seat belt "just on this trip"?
A statistics instructor wants to know which route will get her to school the fastest. Each day from October 2 to November 15, when she gets to the turn point she checks the odometer on her car
Soft Drinks a vending machine automatically pours soft drinks into cups. As the amount of soft drink dispensed into a cup is normally distributed
Find a 90% confidence interval for the population mean weight of all such turtles.
What is the likelihood the sample mean is greater than $22.50 but less than $25.00?
Evaluate the standard deviation - use the conservative value for the degrees of freedom, Assume the two groups are independent and the data are approximately Normal. Let µ 1 and µ 2 represent the mean heart rates we would observe for the entire po..
Construct a 90 percent confidence interval for the proportion of all kernels that would not pop.
If 25 men aged 18-24 are arbitrarily chosen, determine probability that their mean serum cholesterol level is between 165 and 200.
Explain your answer to someone who is familiar with the t test for a single sample, but not with the t test for independent means.
A probability value of .25 means that an event will occur:
Which of the following events are disjoint and What proportion of the females rated their intelligence less than 7.
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