Question

A publisher reports that 62% 62 % of their readers own a laptop. A marketing executive...

A publisher reports that 62% 62 % of their readers own a laptop. A marketing executive wants to test the claim that the percentage is actually more than the reported percentage. A random sample of 130 130 found that 70% 70 % of the readers owned a laptop. Is there sufficient evidence at the 0.10 0.10 level to support the executive's claim?

State the null and alternative hypotheses.

Find the value of the test statistic.

Round your answer to two decimal places.

Specify if the test is one-tailed or two-tailed.

Determine the P-value of the test statistic. Round your answer to four decimal places.

Identify the value of the level of significance.

Make the decision to reject or fail to reject the null hypothesis.

State the conclusion of the hypothesis test.

Homework Answers

Answer #1

Below are the null and alternative Hypothesis,
Null Hypothesis, H0: p = 0.62
Alternative Hypothesis, Ha: p > 0.62


This is right tailed test

Test statistic,
z = (pcap - p)/sqrt(p*(1-p)/n)
z = (0.7 - 0.62)/sqrt(0.62*(1-0.62)/130)
z = 1.88

P-value Approach
P-value = 0.0301

0.1 is the levlof significance

As P-value < 0.1, reject the null hypothesis.

There is sufficient evidence to conclude that the percentage is actually more than the reported percentage.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A publisher reports that 62% of their readers own a laptop. A marketing executive wants to...
A publisher reports that 62% of their readers own a laptop. A marketing executive wants to test the claim that the percentage is actually more than the reported percentage. A random sample of 130 found that 70% of the readers owned a laptop. Is there sufficient evidence at the 0.02 level to support the executive's claim? Step 1 of 7: State the null and alternative hypotheses. Step 2 of 7: Find the value of the test statistic. Round your answer...
A publisher reports that 65% 65 % of their readers own a laptop. A marketing executive...
A publisher reports that 65% 65 % of their readers own a laptop. A marketing executive wants to test the claim that the percentage is actually more than the reported percentage. A random sample of 160 160 found that 70% 70 % of the readers owned a laptop. Is there sufficient evidence at the 0.02 0.02 level to support the executive's claim? Step 1 of 7: State the null and alternative hypotheses. Step 2 of 7: Find the value of...
A publisher reports that 39% of their readers own a laptop. A marketing executive wants to...
A publisher reports that 39% of their readers own a laptop. A marketing executive wants to test the claim that the percentage is actually more than the reported percentage. A random sample of 250 found that 48% of the readers owned a laptop. Is there sufficient evidence at the 0.02 level to support the executive's claim? Step 1 of 7: State the null and alternative hypotheses. Step 2 of 7: Find the value of the test statistic. Round your answer...
A publisher reports that 36% of their readers own a laptop. A marketing executive wants to...
A publisher reports that 36% of their readers own a laptop. A marketing executive wants to test the claim that the percentage is actually less than the reported percentage. A random sample of 320 found that 30% of the readers owned a laptop. Is there sufficient evidence at the 0.010 level to support the executive's claim? Step 1 of 7: State the null and alternative hypotheses. Step 2 of 7: Find the value of the test statistic. Round your answer...
A publisher reports that 71% of their readers own a laptop. A marketing executive wants to...
A publisher reports that 71% of their readers own a laptop. A marketing executive wants to test the claim that the percentage is actually more than the reported percentage. A random sample of 140 found that 80% of the readers owned a laptop. Is there sufficient evidence at the 0.02 level to support the executive's claim? Step 1 of 7: State the null and alternative hypotheses. Step 2 of 7: Find the value of the test statistic. Round your answer...
A publisher reports that 64% of their readers own a particular make of car. A marketing...
A publisher reports that 64% of their readers own a particular make of car. A marketing executive wants to test the claim that the percentage is actually different from the reported percentage. A random sample of 130 found that 60% of the readers owned a particular make of car. Is there sufficient evidence at the 0.05 level to support the executive's claim? State the null and alternative hypotheses. Find the value of the test statistic. Round your answer to two...
A publisher reports that 79% of their readers own a laptop. A marketing executive wants to...
A publisher reports that 79% of their readers own a laptop. A marketing executive wants to test the claim that the percentage is actually more than the reported percentage. A random sample of 200 found that 82% of the readers owned a laptop. Is there sufficient evidence at the 0.02 level to support the executive's claim? Step 6 of 7: Make the decision to reject or fail to reject the null hypothesis.
A publisher reports that 69 % of their readers own a particular make of car. A...
A publisher reports that 69 % of their readers own a particular make of car. A marketing executive wants to test the claim that the percentage is actually over the reported percentage. A random sample of 200 found that 78 % of the readers owned a particular make of car. Is there sufficient evidence at the 0.10 level to support the executive's claim? State the null and alternative hypotheses. Find the value of the test statistic. Round your answer to...
A publisher reports that 71%  of their readers own a particular make of car. A marketing executive...
A publisher reports that 71%  of their readers own a particular make of car. A marketing executive wants to test the claim that the percentage is actually less than the reported percentage. A random sample of 280 found that 65% of the readers owned a particular make of car. Is there sufficient evidence at the 0.02 level to support the executive's claim? Step 1 of 7: State the null and alternative hypotheses. Step 2 of 7: Find the value test statistic....
A publisher reports that 65% of their readers own a laptop. A marketing executive wants to...
A publisher reports that 65% of their readers own a laptop. A marketing executive wants to test the claim that the percentage is actually different from the reported percentage. A random sample of 130 found that 60% of the readers owned a laptop. Determine the P-value of the test statistic. Round your answer to four decimal places.