Neen

In an alien organism, pink, spots is a sex-linked, dominant trait and black hair is an autosomal gene that is dominant to white. If a heterozygotic pink-spotted, black female is mated to a white male that is not spotted, what will the genotype and phenotype ratios be in the male offspring?

In peas, yellow color is dominant to green. What will the colors and frequencies of the offspring of the following crosses?

A) Homozygous yellow x green

B) Heterozygous yellow x green

C) Heterozygous yellow x Homozygous yellow

D) Heterozygous yellow x Heterozygous yellow

A researcher needs to conduct a suitable nonparametric test to compare two dependent variables. Which of the following should be used?

A) t-test

B) Wilcoxon rank sum test

C) Wilcoxon signed-rank test

D) Kruskal-Wallis test

The second question is

If a researcher is using the sign test and has 3 positive signs, 8 negative signs, and 4 zeros, what is the test value?

A) 3

B) 4

C) 8

D) 15

Thanks everyone for you help!!!!

If a researcher is using the sign test and has 3 positive signs, 8 negative signs, and 4 zeros, what is the test value?

A) 3

B) 4

C) 8

D) 15

The second question is...

A researcher needs to conduct a suitable nonparametric test to compare two dependent variables. Which of the following should be used?

A) t-test

B) Wilcoxon rank sum test

C) Wilcoxon signed-rank test

D) Kruskal-Wallis test

If the correlation coefficient is equal to 0.521, find the coefficient of non determination?

A) 0.729

B) 0.720

C) 0.396

D) 0.271

This is the second Question??

If the equation for the regression line is y' = 9x + 7, then a value of x = –1 will result in a predicted value for y of

A) –2

B) 2

C) 7

D) 9

Thanks alot people!!

If the equation for the regression line is y' = –8x + 3, then the intercept of this line is what???

A) -5

B) -8

C) 3

D) 8

For the samples summarized below, test the hypothesis, at α = 0.05, that the two variances are different.

Sample Std. Deviaiton 4.3 2.8

Sample size 10 20

Sample 1 is 4.3 and 2.8

Sample 2 is 10 and 20

A) Reject the hypothesis because the test value 2.36 is less than the critical value 2.35.

B) Reject the hypothesis because the test value 2.36 is less than the critical value 2.42.

C) Accept the hypothesis because the test value 5.56 is greater than the critical value 2.35.

D) Accept the hypothesis because the test value 5.56 is greater than the critical value 2.42.

Thanks!!!

The percentage of adults 25 years of age and older who have completed 4 or more years of college are 23.6% for females and 27.8% for males. A random sample pf women and men who were 25 years old or older was surveyed with these results. Estimate the true difference in proportions with 95% confidence, and compare your interval with the Almanac statistics???

Sample Size for women are 350

No. who completed 4 or more years for women are 100

Sample Size for men are 400

No. who completed 4 or more years for men is 115??

a veterinary nutritionist developed a diet for overweight dogs. The total volume of food comsumed remains the same, but one hlf of the dog food is replaced with low-calorie filler such as canned green beans. Six overweight dogs were randomly selected from her practice and were put on this program. Their initial weights were recorded, and then they were weighed again after 4 weeks. At the 0.05 level of significance can it be concluded that the dogs lost weight?

Before 42 53 48 65 40 52

After 39 45 40 58 42 47

Can you show your work please!!!!

Students in a statistics class were asked to report the number of hours they slept on weeknights and on weekends. At a=0.05, is there sufficient evidence that there is a difference in the mean number of hours slept?

Student 1 2 3 4 5 6 7 8

Hours, Sun.-Thurs. 8 5.5 7.5 8 7 6 6 8

Hours, Fri.- Sat. 4 7 10.5 12 11 9 6 9

Show your work please!! Thanks alot

The number of cartoons that is watched by Mrs. Kelly’s first grade class on Saturday morning is shown below.

x P(x)

0 0.15

1 0.20

2 0.30

3 0.10

4 0.20

5 0.05

Give the standard deviation for the probability distribution???

Thanks whoever

How many possible outcomes would there be if five coins were tossed once??

It has been found that 50.3% of u.s. households own stocks and mutual funds. A random sample of 300 heads of households indicated that 171 owned some type of stock. At what level of significance would you conclude that this was a significant difference?

Show work please!! Thanks

The average 1 year old both genders is 29 inches tall. A random sample of 30 1 year olds in a large day care franchise resulted in the following heights. At a =0.05, can it be concluded that the average height differs from 29 inches? Assume o-=2.61.

25 32 35 25 30 26.5 26 25.5 29.5 32

30 28.5 30 32 28 31.5 29 29.5 30 34

29 32 27 28 33 28 27 32 29 29.5

Show work Please!!!

Obesity is defined as a body mass index (BMI) of 30kg/2 or more. A 95% confidence interval for the percentage of u.s. adults ages 20 years and over who were obese was found to 22.4 to 23.5%. What was the sample size??

Show work..

35%of adult Americans are regular voters. A random sample of 250 adults in a medium-size college town were surveyed, and it was found that 110 were regular voters. Estimate the true proportion of regular voters with 90% confidence and comment on your results...

Can you show you work please???

A researcher’s shows that, for an experiment with 75 subjects, a 95% prediction interval would have a width 4 units. If the researcher wishes to run a more precise experiment that will result in a 95% prediction interval with a width of 2 units, then the researcher will require how many subjects?

110 people who came into the shop on a specific day, and found the following: 55 bought cds; 50 bought books; 42 bought t-shirts; 29 bought books and cds; 25 bought books and t-shirts;23 bought cds and t-shirts; and 15 bought all three items.

A) How many bought cds and t-shirts but no books??

B) How many bought cds or t-shirts?

C) How many bought none of the three items?

If a vanity plate has six letters or numbers in any order, how many different plates are possible, if the digits "0" and "1" cannot be used since they resemble the letters "0" and "I" too closely??

Please someone help me with this question!!! Thanks :)

Convert the following statements into symbolic form using (p) for "Joe made a B on the exam" and (q) for "Al did not take the exam."

A) Joe made a B on the exam, and Al did not take the exam?

B) Al took the exam?

C) Al did not take the exam, or Joe made a B on the exam?